Investment Strategy |
Apr. 23, 2026 |
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| JNL/AMERICAN FUNDS BALANCED FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund varies its mix of equity securities, debt securities and money market instruments. Under normal market conditions, the Master Fund expects (but is not required) to maintain an investment mix falling within the following ranges: 40%-80% in equity securities, 20%-50% in debt securities and 0%-40% in money market instruments and cash. As of December 31, 2025, the Master Fund was approximately 65% invested in equity securities, 31% invested in debt securities and 4% invested in money market instruments and cash. The proportion of equities, debt and money market securities held by the Master Fund varies with market conditions and the Master Fund’s investment adviser’s assessment of their relative attractiveness as investment opportunities.
The Master Fund invests in a diversified portfolio of common stocks and other equity securities, bonds and other intermediate and long-term debt securities, including U.S. Government securities, and money market instruments (debt securities maturing in one year or less). The Master Fund may invest up to 15% of its assets in common stocks and other equity securities tied economically to countries outside the United States and up to 5% of its assets in debt securities of issuers domiciled outside the United States. In addition, the Master Fund may invest up to 25% of its debt assets in lower quality debt securities (rated Ba1 or below and BB+ or below by Nationally Recognized Statistical Rating Organizations designated by the Master Fund or unrated but determined to be of equivalent quality by the Master Fund). Such securities are sometimes referred to as “junk bonds.”
The Master Fund uses a system of multiple portfolio managers in managing the fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual portfolio managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively priced securities that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the Master Fund’s investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Master Fund expects (but is not required) to maintain an investment mix falling within the following ranges: 40%-80% in equity securities, 20%-50% in debt securities and 0%-40% in money market instruments and cash. | ||||||||||||||||||||||||||||||
| JNL/American Funds Bond Fund of America Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund seeks to maximize the level of current income and preserve capital by investing primarily in bonds. Normally, the Master Fund invests at least 80% of its assets in bonds and other debt securities, which may be represented by derivatives. The Master Fund invests at least 60% of its assets in debt securities (excluding derivatives) rated A3 or better or A- or better by Nationally Recognized Statistical Ratings Organizations designated by the Master Fund’s investment adviser, or in debt securities that are unrated but determined to be of equivalent quality by the Master Fund’s investment adviser, and in U.S. Government securities, money market instruments, cash or cash equivalents.
The Master Fund may also invest in debt securities and mortgage-backed securities issued by government-sponsored entities and federal agencies and instrumentalities that are not backed by the full faith and credit of the U.S. Government.
The Master Fund may invest in inflation-linked bonds issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations. Inflation-linked bonds are structured to protect against inflation by linking the bond’s principal and interest payments to an inflation index, such as the Consumer Price Index for Urban Consumers, so that principal and interest adjust to reflect changes in the index.
The Master Fund may invest in futures contracts and swaps, which are types of derivatives. A derivative is a financial contract, the value of which is based on the value of an underlying financial asset (such as a stock, bond or currency), a reference rate or a market index.
The Master Fund may invest up to 5% of its assets in debt securities rated Ba1 or below and BB+ or below by Nationally Recognized Statistical Rating Organizations designated by the Master Fund, or in debt securities that are unrated but determined to be of equivalent quality by the Master Fund’s investment adviser. Securities rated Ba1 or below and BB+ or below are sometimes referred to as “junk bonds.”
The Master Fund uses a system of multiple portfolio managers in managing the Master Fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual portfolio managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively priced securities that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the Master Fund’s investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | Normally, the Master Fund invests at least 80% of its assets in bonds and other debt securities, which may be represented by derivatives. | ||||||||||||||||||||||||||||||
| JNL/American Funds Capital Income Builder Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund normally will invest at least 90% of its assets in income-producing securities (with at least 50% of its assets in common stocks and other equity securities). The Master Fund invests primarily in a broad range of income-producing securities, including common stocks and bonds. In seeking to provide a level of current income that exceeds the average yield on U.S. stocks, the Master Fund generally looks to the average yield on stocks of companies listed on the S&P 500 Index. The Master Fund may also invest significantly in common stocks, bonds and other securities outside the United States.
The Master Fund uses a system of multiple portfolio managers in managing the fund’s assets. Under this approach, the Master Fund’s portfolio is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued securities that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the Master Fund’s investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | The Master Fund normally will invest at least 90% of its assets in income-producing securities (with at least 50% of its assets in common stocks and other equity securities). | ||||||||||||||||||||||||||||||
| JNL/American Funds Global Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund invests primarily in common stocks of companies around the world that the Master Fund’s investment adviser believes have the potential for growth. As a fund that seeks to invest globally, the Master Fund will allocate its assets among securities of companies in various countries, including the United States and countries with emerging markets (but in no fewer than three countries). Under normal market conditions, the Master Fund will invest a percentage of its net assets outside the United States. That percentage will represent at least (a) 40% of the Master Fund’s net assets, unless market conditions are not deemed favorable by the Master Fund, in which case 30%, or (b) the percentage of the MSCI All Country World Index represented by companies outside of the United States minus 5%, whichever is lower.
Although the Master Fund focuses on investments in medium to larger capitalization companies, the Master Fund’s investments are not limited to a particular capitalization size.
The Master Fund uses a system of multiple portfolio managers in managing the Master Fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Master Fund will invest a percentage of its net assets outside the United States. That percentage will represent at least (a) 40% of the Master Fund’s net assets, unless market conditions are not deemed favorable by the Master Fund, in which case 30%, or (b) the percentage of the MSCI All Country World Index represented by companies outside of the United States minus 5%, whichever is lower. | ||||||||||||||||||||||||||||||
| JNL/American Funds Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund invests primarily in common stocks and seeks to invest in companies that the Master Fund’s investment adviser believes offer superior opportunities for growth of capital. The Master Fund may invest up to 25% of its assets in common stocks and other securities (including convertible and nonconvertible preferred stocks, bonds, and other debt securities) outside the United States, including, to a more limited extent, in emerging markets.
Although the Master Fund focuses on investments in medium to larger capitalization companies, the Master Fund’s investments are not limited to a particular capitalization size.
The Master Fund uses a system of multiple portfolio managers in managing the Master Fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | The Master Fund may invest up to 25% of its assets in common stocks and other securities (including convertible and nonconvertible preferred stocks, bonds, and other debt securities) outside the United States, including, to a more limited extent, in emerging markets. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS GROWTH-INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund. The Master Fund invests primarily in common stocks or other securities that the investment adviser to the Master Fund believes demonstrate the potential for appreciation and/or dividends. Although the Master Fund focuses on investments in medium to larger capitalization companies, the Master Fund’s investments are not limited to a particular capitalization size.
The Master Fund may invest up to 15% of its assets outside the United States, including those located in emerging market countries.
The Master Fund uses a system of multiple portfolio managers in managing the Master Fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | The Master Fund may invest up to 15% of its assets outside the United States, including those located in emerging market countries. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS INTERNATIONAL FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund. The Master Fund seeks to make your investment grow over time by investing primarily in common stocks in Europe and the Pacific Basin that the investment adviser of the Master Fund believes have the potential for growth.
Growth stocks are stocks that the investment adviser of the Master Fund believes have the potential for above-average capital appreciation.
Normally the Master Fund will invest at least 80% of its net assets in securities of issuers in Europe and the Pacific Basin. A country will be considered part of Europe if it is part of the MSCI European indexes, and part of the Pacific Basin if any of its borders touches the Pacific Ocean. In determining the domicile of an issuer, the Master Fund’s investment adviser will generally look to the determination of MSCI Inc. (MSCI) for equity securities and Bloomberg for debt securities. In certain limited circumstances (including where relevant data is unavailable or the nature of a holding warrants special considerations), the Master Fund’s investment adviser may also take into account additional factors, as applicable, including where the issuer’s securities are listed; where the issuer is legally organized, maintains principal corporate offices, conducts its principal operations, generates revenues and/or has credit risk exposure; and the source of guarantees, if any, of such securities. The Master Fund may invest a portion of its assets in common stocks and other securities of companies in emerging markets.
Prior to May 1, 2026, the Master Fund was called American Funds Insurance Series® - International Fund℠.
The Master Fund uses a system of multiple portfolio managers in managing the Master Fund’s assets. Under this approach, the portfolio of the Master Fund is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | Normally the Master Fund will invest at least 80% of its net assets in securities of issuers in Europe and the Pacific Basin. A country will be considered part of Europe if it is part of the MSCI European indexes, and part of the Pacific Basin if any of its borders touches the Pacific Ocean. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS NEW WORLD FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund invests primarily in common stocks of companies with significant exposure to developing countries. The securities markets of these countries may be referred to as emerging markets or frontier markets. For purposes of this investment strategy, the Master Fund may invest in equity securities of any company, regardless of where it is domiciled (including developed countries), if the Master Fund’s investment adviser determines that a significant portion of the company’s assets or revenues (generally 20% or more) is attributable to developing countries.
Under normal market conditions, the Master Fund will invest at least 35% of its assets in equity and debt securities of issuers domiciled in qualified developing countries. The securities markets of these countries may be referred to as emerging markets or frontier markets. For purposes of this investment strategy, a qualified developing country will generally resemble the United States and European Union countries more closely relative to non-qualified developing countries.
In determining whether a country is a developed country or a developing country, the Master Fund’s investment adviser will consider such factors as the country’s per capita gross domestic product; the percentage of the country’s economy that is industrialized; market capital as a percentage of gross domestic product; the overall regulatory environment; the presence of government regulation limiting or banning foreign ownership; and restrictions on repatriation of initial capital, dividends, interest and/or capital gains and may also consider whether the country is designated as a developed market by MSCI Inc. When assessed along these criteria, a developed country will generally resemble the United States and European Union countries more closely relative to developing countries. The investment adviser to the Master Fund maintains a list of qualified developing countries and securities in which the Master Fund may invest. Please refer to the statutory prospectus for a list of qualified developing countries.
The Master Fund may also invest in debt securities of issuers, including issuers of lower-rated bonds (rated Ba1 or below and BB+ or below by Nationally Recognized Statistical Rating Organizations designated by the Master Fund’s investment adviser or unrated but determined to be of equivalent quality by the Master Fund’s investment adviser), with exposure to these countries. Bonds rated Ba1 or BB+ or below are sometimes referred to as “junk bonds.”
In addition, the Master Fund may invest in nonconvertible debt securities of issuers, including issuers of lower rated bonds and government bonds, that are primarily based in qualified countries or that have a significant portion of their assets or revenues attributable to developing countries.
The Master Fund uses a system of multiple portfolio managers in managing the fund’s assets. Under this approach, the portfolio of the fund is divided into segments managed by individual managers.
The Master Fund relies on the professional judgment of its investment adviser to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund’s investment adviser is to seek to invest in attractively valued companies that, in its opinion, represent good, long-term investment opportunities. Securities may be sold when the investment adviser believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Master Fund will invest at least 35% of its assets in equity and debt securities of issuers domiciled in qualified developing countries. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS WASHINGTON MUTUAL INVESTORS FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class 1 shares of the Master Fund.
The Master Fund invests primarily in common stocks of established companies that are listed on, or meet the financial listing requirements of, the New York Stock Exchange and have a strong record of earnings and dividends. The Master Fund strives to accomplish its objective through fundamental research, careful selection and broad diversification. In the selection of common stocks and other securities for investment, current and potential income as well as the potential for long-term capital appreciation are considered. The Master Fund seeks to provide an above-average yield in its quarterly income distribution in relation to the S&P 500 Index (a broad, unmanaged index). The Master Fund strives to maintain a fully invested, diversified portfolio, consisting primarily of high-quality common stocks.
The Master Fund has an “Eligible List” of securities considered appropriate for a prudent investor seeking opportunities for income and growth of principal consistent with common stock investing. The Master Fund’s investment adviser generates and maintains the Eligible List and selects the Master Fund’s investments exclusively from the securities on the Eligible List.
The Feeder Fund relies on the professional judgment of its Master Fund to make decisions about the Master Fund’s portfolio investments. The basic investment philosophy of the Master Fund is to seek to invest in attractively valued securities that, in its opinion, represent good, long-term investment opportunities. The Master Fund believes that an important way to accomplish this is through fundamental analysis, which may include meeting with company executives and employees, suppliers, customers, and competitors. Securities may be sold when the Master Fund believes that they no longer represent relatively attractive investment opportunities. |
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| Strategy Portfolio Concentration [Text] | The Master Fund invests primarily in common stocks of established companies that are listed on, or meet the financial listing requirements of, the New York Stock Exchange and have a strong record of earnings and dividends. | ||||||||||||||||||||||||||||||
| JNL Multi-Manager Alternative Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by allocating among a variety of alternative strategies managed by seven unaffiliated investment managers (“Sub-Advisers”) sometimes referred to as “sleeves.” Each of the Sub-Advisers generally provides day-to-day management for a portion of the Fund’s assets.
The Fund may invest in securities and other financial instruments of companies of any market capitalization. The Fund may invest in securities and other financial instruments available in and which have exposure to both U.S. and non-U.S. markets, including emerging markets, which can be U.S. dollar-denominated or non-U.S. dollar-denominated and may be currency hedged or un-hedged. The Fund may invest in corporate loans.
The Fund may invest in derivatives transactions such as options, futures contracts or swap agreements, including credit default swaps. The Fund’s derivative exposure will vary from time to time depending upon market conditions, inflows and outflows of investments in the Fund and other factors considered by the Sub-Advisers from time to time.
An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Fund (all sleeves collectively) may invest up to 15% of its net assets in illiquid investments that are assets. The Fund considers investments in private equity securities and hedge funds as illiquid investments.
The Adviser may allocate up to 10% of the Fund’s total assets in other investment companies, which will primarily be in private funds or other pooled investment vehicles that would qualify as “investment companies” under the 1940 Act but for Sections 3(c)(1) or 3(c)(7) of the 1940 Act (“Private Funds”).
Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. The Adviser is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. The Adviser provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. The Adviser is also responsible for selecting the Fund’s alternative investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
Equity Long/Short Strategies
First Pacific Advisors, LP (“FPA”) pursues a contrarian value strategy that seeks to identify absolute value opportunities across the capital structure, and in a variety of market capitalizations, geographies and sectors with the long-term objective of achieving equity-like rates of return with less risk than the market and avoid permanent impairment of capital. Being contrarian in nature means the management team focuses on out-of-favor companies, does not pay close attention to benchmark weightings and is willing to hold meaningful amounts of cash for prolonged periods if opportunities for investment do not present themselves. FPA seeks “value” in companies whose securities are trading at a substantial discount to FPA’s estimate of their intrinsic value. Investments may include, but are not limited to, common and preferred stock, convertible securities, contingent convertible securities, rights and warrants, corporate and high yield bonds (commonly referred to as “junk bonds”), as well as government debt. In addition, FPA may sell securities short.
Boston Partners Global Investors, Inc. (“Boston Partners”) provides sub-investment advisory services for the portion of the Fund’s assets allocated to Boston Partners in connection with certain securities that were issued by or that provide exposure to Russian companies. As of the date of this prospectus, it is contemplated that the duration of Boston Partners’ involvement in managing these investments will be for however long it takes the Fund to exit such investments.
Loomis, Sayles & Company, L.P. (“Loomis Sayles”) invests in equity securities of companies of any market capitalization. While the majority of investments will be long, there may be opportunities where the strategy holds short investments. Under normal market conditions, the strategy will maintain long and short investments in equity securities. As a substitute for short investments, the strategy may utilize market hedging strategies consisting of short exposures to indices, sectors or other securities or assets.
Kayne Anderson Rudnick Investment Management, LLC (“KAR”) invests in equity securities and equity-related instruments, in long and short positions of primarily U.S.-listed equity securities of any capitalization. The long investment strategy aims to purchase the stock of issuers deemed by KAR as high-quality companies at attractive valuations. KAR defines “high-quality” companies to include a durable competitive advantage, strong management team, and reasonable capital structure. The short investment strategy aims to sell short the stock of low-quality companies whose share price KAR expects to drop because it does not accurately reflect the poor fundamentals of the business. KAR defines “low-quality” companies to include an erratic or mediocre financial performance, poor history of capital allocation, a flawed business model and/or an aggressive capital structure.
Event Driven and Merger Arbitrage Strategy
Westchester Capital Management, LLC (“Westchester”) employs a merger arbitrage strategy (“Merger Arbitrage Strategy”) that invests in the common stock, preferred stock, corporate debt, derivatives, total return swaps and/or contracts for difference and, occasionally, warrants of companies which are involved in publicly announced mergers, takeovers, tender offers, leveraged buyouts, spin-offs, liquidations and other corporate reorganizations. The Fund may also invest in special purpose acquisition companies, a form of investment vehicle typically formed for the purpose of acquiring an operating business. Although a variety of strategies may be employed depending upon the nature of the reorganizations selected for investment, the simplest form of merger-arbitrage activity involves purchasing the shares of an announced acquisition target at a discount to their expected value upon completion of the acquisition.
Relative Value Strategies
DoubleLine Capital LP (“DoubleLine”) employs an opportunistic income strategy by allocating investments to fixed-income instruments and other investments with no limit on the duration of the strategy. DoubleLine may invest in, without limitation, asset-backed securities; domestic and foreign corporate bonds, including high-yield bonds; municipal bonds; bonds or other obligations issued by domestic or foreign governments, including emerging markets countries; real estate investment trust (“REIT”) debt securities; and mortgage-related securities. When investing in mortgage-related securities, DoubleLine may invest in obligations issued or guaranteed by agencies or instrumentalities of the U.S. Government; collateralized mortgage obligations (“CMOs”) issued by domestic or foreign private issuers that represent an interest in or are collateralized by mortgage related securities issued by agencies or instrumentalities of the U.S. Government; commercial mortgage backed securities (“CMBS”); obligations issued by private issuers that represent an interest in or are collateralized by whole mortgage loans or mortgage related securities without a government guarantee but typically with some form of private credit enhancement; “interest only” and “principal only” stripped mortgage securities; inverse floating rate securities; and debt or equity tranches of collateralized debt obligations collateralized by mortgage related securities. DoubleLine may seek to manage the duration of the Fund’s portfolio through the use of derivative instruments and other investments (including, among others, inverse floaters, futures contracts, U.S. Treasury swaps, interest rate swaps, total return swaps and options, including options on swap agreements). The Fund incurs costs in implementing duration management strategies, and there can be no assurance that the Fund will engage in duration management strategies or that any duration management strategy employed by the Fund will be successful.
Lazard Asset Management LLC (“Lazard”) invests in convertible securities, contingent convertible securities, preferred securities, equity, and debt, with the objective of current income, long-term capital appreciation and principal protection. Lazard’s Portfolio Management Team constructs a diversified portfolio of convertible securities, contingent convertible securities, preferred stocks, equity, and debt that have been evaluated on relative valuation and risk attributes. Lazard may use over-the-counter total return swaps as part of its investment strategy. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by allocating among a variety of alternative strategies managed by seven unaffiliated investment managers (“Sub-Advisers”) sometimes referred to as “sleeves.” | ||||||||||||||||||||||||||||||
| JNL MULTI-MANAGER EMERGING MARKETS EQUITY FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of emerging markets companies.
The Fund considers a company to be in an emerging country or market if the company has been organized under the laws of, has its principal offices in, or has its securities principally traded in, the emerging country or market, or if the company derives at least 50% of its revenues, net profits or incremental revenue growth (typically over the past five years) from, or has at least 50% of assets or production capacities in, the emerging country or market.
Emerging market countries include, but are not limited to all countries represented by the Morningstar® Emerging Markets Index℠ (the “Index”). The Index includes, but is not limited to, the following countries: Brazil, Chile, China, Colombia, Czech Republic, Egypt, Greece, Hungary, India, Indonesia, Kuwait, Malaysia, Mexico, Peru, Philippines, Qatar, Saudi Arabia, South Africa, South Korea, Taiwan, Thailand, Turkey, and United Arab Emirates. Other countries that are not represented by the Index may also be considered emerging if they are not defined as developed by Morningstar. Emerging markets may also be countries with low to middle income economies as classified by the World Bank.
The Fund generally invests in securities of companies located in different regions and in at least three different countries. The Fund may concentrate, or invest a significant portion of its assets, in the securities of companies in one or a few countries or regions.
The Fund may also invest in A Shares of companies based in the People’s Republic of China (“China”) that trade on the Shanghai Stock Exchange and the Shenzhen Stock Exchange through the Shanghai – Hong Kong and Shenzhen – Hong Kong Stock Connect programs (“Stock Connect”). Stock Connect is a mutual stock market access program designed to, among other things, enable foreign investments in China.
The Fund may invest in participatory notes (“P-Notes”).
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Four unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
T. Rowe Price Strategy
T. Rowe Price Associates, Inc. and T. Rowe Price Hong Kong Limited (collectively, “T. Rowe Price”) constructs the T. Rowe Price Strategy by investing in stocks issued by companies in emerging markets. T. Rowe Price may invest in companies of any size but generally seeks stocks of mid or larger companies that T. Rowe Price believes are undervalued.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the WCM Strategy by investing in equity securities of non-U.S. domiciled companies or depositary receipts of non-U.S. domiciled companies located in emerging market countries. WCM’s investments in equity securities may include common stocks, common stock that is offered in initial public offerings (“IPOs”), and depositary receipts. The WCM Strategy’s investments in depositary receipts may include American, European, Canadian and Global Depositary Receipts (“ADRs”, “EDRs”, “CDRs”, and “GDRs”, respectively). ADRs are receipts that represent interests in foreign securities held on deposit by U.S. banks. EDRs and GDRs have the same qualities as ADRs, except that they may be traded in several international trading markets.
Kayne Anderson Rudnick Strategy
Kayne Anderson Rudnick Investment Management, LLC (“KAR”) constructs the KAR Strategy by investing in equity or equity-linked securities of companies located in emerging markets countries. KAR invests in a select group of companies believed by KAR to be undervalued relative to their future market growth potential. The investment strategy emphasizes companies that KAR believes to have a sustainable competitive advantage, strong management, and low financial risk and to be able to grow over market cycles.
KAR intends to diversify its investments among countries and normally to have represented in the portfolio business activities of a number of different countries. Equity securities in which KAR invests include common stocks, preferred stocks and ADRs/GDRs. KAR does not use allocation models to restrict investments to certain regions, countries, or industries.
GQG Strategy
GQG Partners LLC (“GQG”) constructs the GQG Strategy by investing in equity securities of emerging market companies. The equity securities in which the GQG Strategy invests are primarily publicly traded common stocks but may also include warrants and preferred stocks. Equity securities also include depositary receipts (including unsponsored depositary receipts and ADRs, EDRs and GDRs), which are certificates typically issued by a bank or trust company that represent ownership interests in securities of non-U.S. companies, and P-Notes, which are derivative instruments designed to replicate equity exposure in certain foreign markets where direct investment is either impossible or difficult due to local investment restrictions. The GQG Strategy may invest in IPOs and securities of companies with any market capitalization. Certain instruments in which the GQG Strategy invests may be illiquid or thinly-traded securities. The GQG Strategy may invest in exchange traded funds (“ETFs”), including commodity ETFs that provide exposure to or invest in gold. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of emerging markets companies. | ||||||||||||||||||||||||||||||
| JNL MULTI-MANAGER FLOATING RATE INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in income-producing floating rate instruments, including floating rate loans, floating rate notes, other floating rate debt securities, structured products (including commercial mortgage-backed securities, asset-backed securities, and collateralized loan obligations, which are debt securities typically issued by special purpose vehicles and secured by loans), and repurchase agreements.
Additionally, for purposes of satisfying the 80% requirement, the Fund has the ability to invest in other investment companies, such as exchange-traded funds (“ETFs”) comprised of the securities described above, short term bond funds and floating rate funds. The Fund generally uses ETFs as a tool to obtain exposure to the securities in which it primarily invests. Money market holdings with a remaining maturity of less than 60 days will be deemed floating rate assets for purposes of the 80% requirement.
The Fund consists of two strategies, sometimes referred to as “sleeves.” One sleeve is managed by an unaffiliated investment manager, FIAM LLC (“FIAM”), and the other sleeve is managed by an affiliated investment manager, PPM America, Inc. (“PPM”, and together with FIAM, the “Sub-Advisers”). Each Sub-Adviser generally provides day-to-day management for a portion of the Fund’s assets.
Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
Below are the principal investment strategies for each sleeve, but the Sub-Advisers may also implement other investment strategies in keeping with their respective sleeve’s objective.
PPM America Floating Rate Income Strategy
PPM constructs the PPM America Floating Rate Income Strategy by investing primarily in U.S. dollar denominated senior floating rate loans of domestic and foreign borrowers (“Senior Loans”). Senior Loans typically are of below investment grade quality and have below investment grade credit ratings, which ratings are associated with securities having high risk and speculative characteristics, and are commonly known as “junk bonds.”
The PPM America Floating Rate Income Strategy may also invest in secured and unsecured subordinated loans, second lien loans and subordinated bridge loans (“Junior Loans”), debtor-in-possession loans, mezzanine loans, fixed-income debt obligations, corporate bonds and money market instruments. Junior Loans typically are of below investment grade quality and have below investment grade credit ratings, which ratings are associated with securities having high risk and speculative characteristics.
The PPM America Floating Rate Income Strategy may invest up to 20% of its net assets in cash and non-floating rate debt securities, including lower-rated debt securities (“high yield”), commonly known as “junk bonds,” and equity securities. Below investment grade securities typically offer a higher yield, but generally carry more risks than higher rated securities with similar maturities. As a result, an investment in below investment grade securities is considered speculative.
FIAM Floating Rate High Income Strategy
FIAM LLC constructs the FIAM Floating Rate High Income Strategy by normally investing primarily in floating rate loans, which are often lower-quality debt securities (those of less than investment-grade quality, also referred to as “junk bonds”), and other floating rate securities. The FIAM Floating Rate High Income Strategy may invest in companies in troubled or uncertain financial condition, money market and investment-grade debt securities, and repurchase agreements, and domestic and foreign issuers. FIAM LLC uses fundamental analysis of each issuer’s financial condition and industry position and market and economic conditions to select investments.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in income-producing floating rate instruments, including floating rate loans, floating rate notes, other floating rate debt securities, structured products (including commercial mortgage-backed securities, asset-backed securities, and collateralized loan obligations, which are debt securities typically issued by special purpose vehicles and secured by loans), and repurchase agreements. | ||||||||||||||||||||||||||||||
| JNL MULTI-MANAGER GLOBAL SMALL CAP FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of small-capitalization companies. The Fund seeks to achieve its investment objective by investing in underlying funds that, in turn, invest primarily in equity securities of small-capitalization companies (“Underlying Funds”).
The Fund invests in Class I shares of the following Underlying Funds:
Each Underlying Fund invests at least 80% of its assets (net assets plus any borrowings for investment purposes) in securities of small-capitalization companies. One of the Underlying Funds invests in the securities of companies domiciled in at least three different countries, and, therefore, the Fund will have exposure to securities of small-capitalization companies and to at least three different countries through its investments in the Underlying Funds.
The investment policies and risks of the Underlying Funds are further described elsewhere in this Prospectus. It should be noted that the Fund’s investment objective and investment strategies remain constant regardless of which Underlying Funds the Fund is invested in.
Each Underlying Fund has its own investment objective and invests in certain types of securities or other assets in order to implement its investment strategy and seek to achieve its investment objective. In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of small-capitalization companies. | ||||||||||||||||||||||||||||||
| JNL Multi-Manager International Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of companies located outside the United States.
The Fund considers a company to be located in a country if the company has been organized under the laws of, has its principal offices in, or has its securities principally traded in, the country, or if the company derives at least 50% of its revenues or net profits from, or has at least 50% of its assets or production capacities in, the country. The Fund generally will invest in securities of companies located in different regions and in at least three different countries. The Fund maintains the flexibility to invest in securities of companies from a variety of sectors, but from time to time, the Fund may have significant investments in particular sectors, including but not limited to financials, industrials, and information technology.
The Fund’s equity investments include, but is not limited to, common stock of companies located outside the United States. and depositary receipts, traded on an exchange and in over-the-counter markets. The Fund’s investments in depositary receipts may include American, European, Canadian, and Global Depositary Receipts (“ADRs,” “EDRs,” “CDRs” and “GDRs,” respectively), and other similar securities. ADRs and CDRs are receipts that represent interests in foreign securities held on deposit by U.S. and Canadian banks or trust companies, respectively. EDRs and GDRs have the same qualities as ADRs, although they may be traded in several international trading markets.
The Fund may invest in securities of companies across the capitalization spectrum.
Four unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
Causeway Strategy
Causeway Capital Management LLC (“Causeway”) constructs the Causeway Strategy by investing primarily in equity securities of companies located outside the United States. The Causeway Strategy’s investments in equity securities include common stock, as well as preferred stock, and depositary receipts.
When investing the Causeway Strategy’s assets, Causeway’s proprietary computer model analyzes factors relating to valuation, sentiment, technical indicators, long-term growth, quality, and sustainability characteristics. The sustainability category is further subdivided into environmental (E), social (S), and governance (G) categories. Currently, the sustainability category receives a 20% weight in the model. For each stock, the weight assigned to the remaining five factors differs depending on its classification (for example, value, growth, momentum, or other classifications). The relative weights of these factors are sometimes referred to as “contextual weights.” Factors and their weights may change over time as the model is revised and updated, or if the classification of a stock changes. In addition to its quantitative research, Causeway’s fundamental research analysts review certain of the quantitative outputs to attempt to identify special issues, such as significant upcoming mergers and acquisitions or management changes, which may not be captured quantitatively.
Lazard Strategy
Lazard Asset Management LLC (“Lazard”) constructs the Lazard Strategy by investing primarily in equity securities of non-U.S. companies, including those whose principal business activities are located in emerging market countries. The Lazard Strategy invests in companies that Lazard considers to be quality growth businesses. By “quality,” Lazard means businesses that it believes can generate, and sustain, high levels of financial productivity (i.e., return on equity, return on capital and cash flow return on investment). Lazard considers, among other factors deemed appropriate and relevant to a particular company, whether the company has a competitive advantage in its industry and if Lazard believes the company can sustain its competitive advantage. Lazard also looks for “growth” businesses that it believes can grow profits and cash flows by investing back into their business at similarly high rates of financial productivity.
Lazard Strategy may invest in securities of companies across the capitalization spectrum but generally focuses on companies with a market capitalization of $3 billion or more. The Lazard Strategy principally invests in common stocks, but the Lazard Strategy’s investments in equity securities also may include preferred stocks, convertible securities, and ADRs, GDRs, and EDRs.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the WCM Strategy by investing primarily in equity securities of non-U.S. domiciled companies or depositary receipts of non-U.S. domiciled companies that WCM believes to be undervalued because their businesses are out of favor and/or their stocks are undervalued in comparison to their intrinsic values, their peers, or their prospects for growth. Such companies may be located in developed, emerging market or frontier market countries. Emerging market and frontier market countries are those countries with low- to middle-income economies as classified by the World Bank, or are included in any of the Morgan Stanley Capital International (MSCI) emerging markets or frontier markets indices.
The equity securities in the WCM Strategy may include common stock and depositary receipts. The WCM Strategy’s investments in depositary receipts may include ADRs, EDRs, CDRs, and GDRs. The WCM Strategy will be managed pursuant to a “focused” strategy, whereby WCM typically invests in the equity securities of a small number of issuers.
William Blair Strategy
William Blair Investment Management, LLC (“William Blair”) constructs the William Blair Strategy by investing primarily in a diversified portfolio of equity securities, including common stocks and other forms of equity investments (e.g., securities convertible into common stocks) issued by companies of all sizes domiciled outside the United States that William Blair believes have above-average growth, profitability, and quality characteristics.
William Blair seeks investment opportunities in companies at different stages of development ranging from large, well-established companies to smaller companies at earlier stages of development that are leaders in their country, industry, or globally in terms of products, services, or execution.
In choosing investments, William Blair performs fundamental company analysis and focuses on stock selection. William Blair generally seeks equity securities, including common stocks of companies that historically have had superior growth, profitability and quality relative to local markets and relative to companies within the same industry worldwide and that are expected to continue such performance. William Blair believes that such companies generally will exhibit superior business fundamentals, including leadership in their field, quality products or services, distinctive marketing and distribution, pricing flexibility and revenue from products or services consumed on a steady, recurring basis. These business characteristics should be accompanied by management that is shareholder return-oriented and that uses conservative accounting policies. Companies with above-average returns on equity, strong balance sheets, and consistent, above average earnings growth will be the primary focus. Stock selection will take into account both local and global comparisons.
The Fund may also invest in A Shares of companies based in the People’s Republic of China (“China”) that trade on the Shanghai Stock Exchange and the Shenzhen Stock Exchange through the Shanghai – Hong Kong and Shenzhen – Hong Kong Stock Connect programs (“Stock Connect”). Stock Connect is a mutual stock market access program designed to, among other things, enable foreign investments in China.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of companies located outside the United States. | ||||||||||||||||||||||||||||||
| JNL Multi-Manager International Small Cap Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of international companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar Global ex-US Small Cap Target Market Exposure Index. As of December 31, 2025, the range of such companies in the Morningstar Global ex-US Small Cap Target Market Exposure Index was $273.95 million to $30.75 billion.
The Fund generally will invest in the securities of companies domiciled in at least three different countries. However, from time to time, the Fund may invest a significant portion of its assets in the securities of companies domiciled in one or a few countries. As of the date of the prospectus, the Fund invested significantly in securities of companies domiciled in Japan. The Fund maintains the flexibility to invest in securities of companies from a variety of sectors, but from time to time, the Fund may have significant investments in particular sectors, including but not limited to the industrials sector.
Equity securities represent an ownership interest, or the right to acquire an ownership interest, in an issuer. The equity securities in which the Fund may invest can be traded on an exchange or in over-the-counter markets and include common stocks (including depositary receipts evidencing ownership of common stock), preferred stocks and other preferred securities, convertible securities, rights and warrants, and other securities, such as hybrid securities and trust preferred securities, believed to have equity-like characteristics. The Fund’s investments in depositary receipts may include American, European, Canadian and Global Depositary Receipts (“ADRs,” “EDRs,” “CDRs”, and “GDRs,” respectively), and other similar securities. ADRs are receipts that represent interests in foreign securities held on deposit by U.S. banks. EDRs and GDRs have the same qualities as ADRs, except that they may be traded in several international trading markets.
The Fund may participate in initial public offerings (“IPOs”) and in securities offerings that are not registered in the U.S. In some emerging markets, the Fund may invest in companies that qualify as smaller companies but still are among the largest in that market.
The Fund may invest in Rule 144A and Regulation S securities. Rule 144A securities are securities offered as exempt from registration with the Securities and Exchange Commission (“SEC”) but are typically treated as liquid securities because there is a market for such securities. Regulation S securities are securities of U.S. and non-U.S. issuers that are issued through private offerings without registration with the SEC pursuant to Regulation S under the Securities Act of 1933, as amended.
A company is considered to be in an emerging or frontier country or market if the company has been registered, incorporated, or organized under the laws of, has headquarters or its principal offices in, or has its stock exchange listing or its securities principally traded in, the emerging or frontier country or market, or if the company derives at least 50% of its revenues, net profits or incremental revenue growth (typically over the past five years) from, or has at least 50% of assets or production capacities in, the emerging or frontier country or market. The Fund considers a company to be domiciled in a country if the company is registered, incorporated or organized under the laws of that country, has headquarters or its principal place of business in that country, or has its stock exchange listing or its securities principally traded in that country.
Three unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
The Fund may use derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may be used as substitutes for securities in which the Fund can invest. To the extent the Fund uses derivatives, the Fund will primarily use futures contracts to more effectively gain targeted equity exposure from its cash positions. Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the Fund’s 80% policy and are consistent with the Fund’s investment policies and limitations with respect to investments in derivatives.
JNAM may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the strategy by investing in equity securities or depositary receipts of small capitalization companies domiciled outside of the United States, including in emerging and frontier market countries.
Causeway Strategy
Causeway Capital Management LLC (“Causeway”) constructs the strategy by investing primarily in common stocks of companies with smaller market capitalizations located in developed and emerging markets outside the U.S. The Causeway Strategy may invest in a wide range of industries.
FIAM Strategy
FIAM LLC (“FIAM”) constructs the FIAM Strategy by investing primarily in non-U.S. securities, including securities of issuers located in emerging markets with small market capitalizations.
FIAM uses fundamental analysis of factors such as each issuer’s financial condition and industry position, and market and economic conditions to select investments. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of international companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar Global ex-US Small Cap Target Market Exposure Index. | ||||||||||||||||||||||||||||||
| JNL MULTI-MANAGER MID CAP FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of mid-capitalization companies that, when purchased, have market capitalizations within the range of companies in the Morningstar US Mid Cap Index. As of December 31, 2025, the Morningstar US Mid Cap Index included companies with market capitalizations from approximately $2.14 billion to $108.96 billion.
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Four unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
Champlain Strategy
Champlain Investment Partners, LLC (“Champlain”) invests mainly in common stocks of medium-sized companies that it believes have strong long-term fundamentals, superior capital appreciation potential and attractive valuations.
Kayne Anderson Rudnick Strategy
Kayne Anderson Rudnick Investment Management, LLC (“KAR”) constructs the KAR Strategy by investing in a select group of medium market capitalization companies that KAR believes to be undervalued relative to their future growth potential. The investment strategy emphasizes companies KAR believes to have a sustainable competitive advantage, which in KAR’s view are companies that exhibit a number of traits, including but not limited to: strong management, low financial risk, and the ability to grow over multiple market cycles. Although the KAR Strategy invests primarily in U.S. companies, it may invest in foreign securities and depositary receipts.
River Road Strategy
River Road Asset Management, LLC (“River Road”) primarily invests in equity securities of mid-capitalization companies that River Road believes are undervalued. The River Road Strategy may invest a portion of its assets in companies of other market capitalizations (measured at the time of acquisition), real estate investment trusts (“REITs”), and foreign securities.
Victory Sycamore Strategy
Victory Capital Management Inc., through its investment franchise, Sycamore Capital, (“Victory Capital”) invests in equity securities of mid-capitalization companies. The Victory Sycamore Strategy may invest a portion of its assets in equity securities of foreign companies traded on U.S. exchanges, including American and Global Depositary Receipts (“ADRs” and “GDRs”).
Victory Capital invests in companies that it believes to be high quality based on criteria such as market share position, profitability, balance sheet strength, competitive advantages, management competence and the ability to generate excess cash flow. Victory Capital uses a bottom-up investment process in conducting fundamental analysis to identify companies that have sustainable returns trading below Victory Capital’s assessment of intrinsic value and prospects for an inflection in business fundamentals that will enable the stock price to be revalued higher. Victory Capital may sell a security if it believes the stock has reached its fair value estimate, if a more attractive opportunity is identified, or if the fundamentals of the company deteriorate. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of mid-capitalization companies that, when purchased, have market capitalizations within the range of companies in the Morningstar US Mid Cap Index. | ||||||||||||||||||||||||||||||
| JNL Multi-Manager Select Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. A significant portion of the Fund’s assets are invested in publicly traded common stocks of U.S. companies.
The Fund may invest in equity securities of foreign companies in both developed and emerging markets.
The Fund may also invest in U.S. Treasury securities.
The Fund is classified as “non-diversified,” which means that it may invest a larger percentage of its assets in a smaller number of issuers than a diversified fund.
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Three unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
The Fund (all sleeves collectively) may invest up to 15% of its net assets in illiquid investments that are assets. The Fund considers investments in private equity securities and hedge funds as illiquid investments.
The Adviser may allocate up to 10% of the Fund’s total assets in other investment companies, which will primarily be in private funds or other pooled investment vehicles that would qualify as “investment companies” under the 1940 Act but for Sections 3(c)(1) or 3(c)(7) of the 1940 Act (“Private Funds”).
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
GQG Strategy
GQG Partners LLC (“GQG”) constructs the GQG Strategy by investing primarily in equity securities of U.S. companies, including warrants and preferred stocks. The GQG Strategy may invest in initial public offerings (“IPOs”) and securities of companies with any market capitalization. GQG considers a company to be a U.S. company if: (i) at least 50% of the company’s assets are located in the U.S.; (ii) at least 50% of the company’s revenue is generated in the U.S.; (iii) the company is organized, conducts its principal operations, or maintains its principal place of business or principal manufacturing facilities in the U.S.; (iv) the company’s securities are traded principally in the U.S.; or (v) GQG otherwise believes that the company’s assets are exposed to the economic fortunes and risks of the U.S. (because, for example, GQG believes that the company’s growth is dependent on the U.S.).
In managing the GQG Strategy, GQG typically pursues a “growth style” of investing as it seeks to capture market inefficiencies which GQG believes are driven by investors’ propensity to be short-sighted and overly focused on quarter-to-quarter price movements rather than a company’s fundamentals over a longer time horizon (5 years or more). Specifically, GQG seeks to buy companies that it believes are reasonably priced and have strong fundamental business characteristics, such as modest leverage, strong rates of return on equity and sustainable earnings and/or cash flow growth. GQG seeks to outperform peers over a full market cycle by seeking to capture market upside while limiting downside risk. GQG may also purchase stocks that would not fall into the traditional “growth” style box. In constructing its portfolio of securities, GQG is not constrained by sector or industry weights in the portfolio’s benchmark and, at times, emphasize one or more particular industries or sectors in the portfolio construction process. GQG relies on individual stock selection driven by a bottom-up research process rather than seeking to add value based on “top-down”, macro based criteria.
The GQG Strategy’s equity investments also may include sponsored and un-sponsored depositary receipts (including American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”), and Global Depositary Receipts (“GDRs”)), which are certificates typically issued by a bank or trust company that represent ownership interests in securities of non-U.S. companies.
River Road Strategy
River Road Asset Management, LLC (“River Road”) constructs the River Road Strategy by investing primarily in equity securities of large-capitalization U.S. companies that River Road believes are undervalued. The River Road Strategy’s equity investments may include common stock, foreign securities (directly and through depositary receipts, including ADRs, EDRs, and GDRs), and real estate investment trusts (“REITs”).
The River Road Strategy may also invest in common stock of companies of other market capitalizations (measured at the time of acquisition), and publicly traded partnerships, including, but not limited to, master limited partnerships.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the WCM Strategy by investing in equity securities of quality growth companies. WCM considers quality growth companies to have superior growth prospects, high returns on invested capital, and low or no debt. In constructing the WCM Strategy, WCM considers qualitative elements, such as corporate culture and the strength, quality, and trustworthiness of management.
The WCM Strategy’s equity investments may include depositary receipts (including ADRs, EDRs, and GDRs). |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL Multi-Manager Small Cap Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of small-capitalization companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar US Small Cap Broad Growth Extended Index. As of December 31, 2025, the range of such companies in the Morningstar US Small Cap Broad Growth Extended Index was $129.23 million to $26.13 billion.
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Companies with similar characteristics may be grouped together in broad categories called sectors. Because the Fund may allocate relatively more assets to certain sectors than others, the Fund’s performance may be more susceptible to any developments which affect those sectors emphasized by the Fund.
Six unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
GIM Strategy
Granahan Investment Management, LLC (“GIM”) constructs the GIM Strategy by blending their Small Cap Focused Growth strategy and their Small Cap Select Strategy.
GIM’s Small Cap Focused Growth strategy is grounded in the belief that superior long term returns are best achieved by focusing on smaller companies that are poised to grow at 15% or more, and using a strict methodology to own the stocks of these sustainable growth companies when risk/reward is attractive.
Within this philosophy, GIM’s Small Cap Focused Growth strategy seeks to own companies with large open-ended opportunities, a favorable competitive landscape and products or services providing a significant value proposition to the customer.
The Small Cap Select strategy takes a diversified approach to growth by seeking companies that can either sustain growth for an extended time, or materially accelerate their growth rate over the near to medium term. The strategy believes that this approach expands the investment opportunity set and mitigates risk.
Baron Strategy
BAMCO, Inc. (“BAMCO”) constructs the Baron Strategy, under normal circumstances, by investing primarily in equity securities of U.S. small-sized growth companies.
BAMCO seeks to invest in businesses it believes have significant opportunities for growth, sustainable competitive advantages, exceptional management, and an attractive valuation. Although the strategy invests primarily in U.S. companies, it may also invest in securities of non-U.S. issuers that are not publicly traded in the U.S. and in Global Depository Receipts and European Depository Receipts.
Kayne Anderson Rudnick Strategy
Kayne Anderson Rudnick Investment Management, LLC (“KAR”) constructs the KAR Strategy by blending two of their unique strategies, Small Cap Growth and Small-Mid Cap Growth strategies. The Small Cap Growth strategy invests in common stocks of small market capitalization companies believed to possess sustainable competitive advantages at prices that KAR deems attractive. The Small Cap Growth strategy emphasizes companies determined by KAR to have a sustainable competitive advantage and the ability to grow over an extended period of time. Although the Small Cap Growth strategy invests primarily in U.S. companies, it may invest in foreign securities and ADRs.
The Small-Mid Cap Growth strategy invests in common stocks of small and mid-market capitalization companies believed to possess sustainable competitive advantages at prices that KAR deems attractive. The Small-Mid Cap Growth strategy emphasizes companies determined by KAR to have a sustainable competitive advantage and the ability to grow over an extended period of time. Although the Small-Mid Cap Growth strategy invests primarily in U.S. companies, it may invest in foreign securities and ADRs.
SBH Strategy
Segall Bryant & Hamill, LLC (“SBH”) constructs the SBH Strategy by investing in small companies that SBH believes to have attractive growth prospects for earnings and/or cash flows.
The SBH Strategy primarily invests in equity securities of companies whose stock is traded on U.S. markets, including depositary receipts or shares issued by companies incorporated outside of the United States (e.g., ADRs).
SBH implements an investment strategy primarily through independent “bottom-up” fundamental research. SBH constructs a portfolio designed to generate alpha, or risk-adjusted excess return relative to the Russell 2000 Growth Index, primarily through stock selection. SBH uses a proprietary discounted cash flow (“DCF”) model for purposes of valuing and generating price targets for individual stocks. The DCF model is utilized for two primary purposes – to understand what assumptions are implied in a stock’s current price and to generate an expected value for each stock, based on SBH’s internally generated forecasts.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the WCM Strategy by investing principally in small-capitalization companies.
The WCM Strategy primarily invests in equity securities of U.S. companies but may also invest any portion of its assets in REITs, foreign securities, including ADRs and GDRs.
WCM employs both fundamental analysis and quantitative screening in seeking to identify companies that the investment team believes will produce significant, long-term excess return.
WCM’s investment process seeks to examine four key governing components:
Driehaus Strategy
Driehaus Capital Management LLC (“Driehaus”) constructs the Driehaus Strategy by investing primarily in equity securities of U.S. small-capitalization companies exhibiting strong growth characteristics. Although the Driehaus Strategy will invest primarily in the equity securities of U.S. small-cap companies, it may also invest a portion of its assets in the equity securities of non-U.S. companies that trade in the U.S. (such as ADRs or substantially similar instruments that are based on foreign securities).
Driehaus employs a growth style of investing for the Driehaus Strategy. For companies with operating histories, Driehaus evaluates a company’s revenue and earnings growth to determine whether it can materially exceed market expectations and whether the security is at an attractive entry point. The Driehaus Strategy may invest in companies with limited or no operating histories. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of small-capitalization companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar US Small Cap Broad Growth Extended Index. | ||||||||||||||||||||||||||||||
| JNL MULTI-MANAGER SMALL CAP VALUE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of small-capitalization companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar US Small Cap Broad Value Extended Index. As of December 31, 2025, the range of such companies in the Morningstar U.S. Small Cap Broad Value Extended Index was $129.23 million to $19.28 billion.
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Five unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
Congress Strategy
Congress Asset Management Company, LLP (“Congress”) constructs the Congress Strategy by investing in the common stocks of small capitalization (“small-cap”) companies.
Congress generally constructs the strategy to consist of 70-110 companies. The Congress Strategy is predominantly focused on investing in companies domiciled within the United States. The strategy can invest in foreign securities, primarily through American Depositary Receipts (“ADRs”) and the equity securities of companies incorporated outside of the U.S. that are traded on U.S. exchanges. Investments in ADRs are generally less than 10%.
The Congress Strategy focuses on opportunities that Congress believes have significant upside potential, emphasizing a combination of both valuation and earnings power. Congress employs a fundamental, bottom-up investment approach that includes both financial modeling and qualitative analysis. A stock may be sold, among other reasons, if Congress believes that the company’s cumulative valuation and earnings upside potential approaches fair value, better opportunities exist, the company experiences fundamental deterioration, or the market capitalization rises above a targeted range.
Cooke & Bieler Strategy
Cooke & Bieler, L.P. (“C&B”) constructs the C&B Small Cap Value Equity Strategy by investing in the common stocks of small capitalization (“small-cap”) companies.
C&B manages a relatively focused portfolio of typically 40 to 60 companies that enables C&B to provide adequate diversification while allowing the portfolio to behave differently than the market.
C&B selects securities for the strategy based on an analysis of a company’s financial characteristics and an assessment of the quality of a company’s management.
WCM Strategy
WCM Investment Management, LLC (“WCM”) constructs the WCM Strategy by investing in the common stocks of small capitalization (“small-cap”) companies that WCM believes are undervalued.
WCM generally constructs the strategy to consist of 25-40 companies. WCM typically selects shareholder-friendly companies with a durable competitive advantage that are trading at a discount to intrinsic value. Characteristics of these companies include sustained, high returns on invested capital, consistent free cash flow generation, and impressive compounding of net book value over time.
Reinhart Strategy
Reinhart Partners, LLC (“Reinhart”) constructs the Reinhart Strategy by investing equity securities issued by small-capitalization (“small-cap”) companies.
Reinhart may invest up to 20% of its net assets in securities of foreign issuers, real estate investment trusts (“REITs”) and securities of other investment companies, including exchange-traded funds (“ETFs”). Reinhart’s investment in other investment companies and ETFs will be within the limits of the Investment Company Act of 1940, as amended. Reinhart’s investments in foreign securities may include ADRs.
River Road Strategy
River Road Asset Management, LLC (“River Road”) constructs the River Road Strategy by investing primarily in equity securities of small capitalization companies that River Road believes are undervalued. The River Road Strategy may continue to hold securities of a portfolio company that subsequently drops below or appreciates above this capitalization threshold. The River Road Strategy may also invest in companies of other market capitalizations, REITs, BDC-RICs, convertible securities, and foreign stocks. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the equity securities of small-capitalization companies that, when purchased, have market capitalizations between the smallest company and 120% of the largest company in the Morningstar US Small Cap Broad Value Extended Index. | ||||||||||||||||||||||||||||||
| JNL Moderate ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of underlying exchange-traded funds (“ETFs”). An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant.
Final allocations are determined by the Adviser through the use of both internal and external resources. Mellon Investments Corporation (“Mellon”), the Fund’s sub-adviser (the “Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically to maintain the Fund’s tactical allocation ranges.
Under normal market conditions, the Adviser allocates approximately 20% to 60% (with a target allocation of 40%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities, 40% to 80% (with a target allocation of 60%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives, and up to 15% (with a target allocation of 0%) of the Fund’s assets to Underlying ETFs that invest primarily in alternative assets and strategies. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
The Fund may invest, directly or through ETFs, in securities that have exposure to foreign currencies through their underlying investments, such as in companies that trade in or receive revenues in foreign currencies.
The Fund may invest, directly or through ETFs, in illiquid or thinly traded securities.
The Fund may invest, directly or through ETFs, in bank loans.
The Fund may lend its securities to increase its income. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of underlying exchange-traded funds (“ETFs”). | ||||||||||||||||||||||||||||||
| JNL Moderate Growth ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of underlying exchange-traded funds (“ETFs”). An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant.
Final allocations are determined by the Adviser through the use of both internal and external resources. Mellon Investments Corporation (“Mellon”), the Fund’s sub-adviser (the “Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically to maintain the Fund’s tactical allocation ranges.
Under normal market conditions, the Adviser allocates approximately 40% to 80% (with a target allocation of 60%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities, 20% to 60% (with a target allocation of 40%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives, and up to 15% (with a target allocation of 0%) of the Fund’s assets to Underlying ETFs that invest primarily in alternative assets and strategies. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
The Fund may invest, directly or through ETFs, in securities that have exposure to foreign currencies through their underlying investments, such as in companies that trade in or receive revenues in foreign currencies.
The Fund may invest, directly or through ETFs, in illiquid or thinly traded securities.
The Fund may invest, directly or through ETFs, in bank loans.
The Fund may lend its securities to increase its income. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of underlying exchange-traded funds (“ETFs”). | ||||||||||||||||||||||||||||||
| JNL Growth ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in underlying exchange-traded funds (“ETFs”). An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant.
Final allocations are determined by the Adviser through the use of both internal and external resources. Mellon Investments Corporation (“Mellon”), the Fund’s sub-adviser (the “Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically to maintain the Fund’s tactical allocation ranges.
Under normal market conditions, the Adviser allocates approximately 60% to 100% (with a target allocation of 80%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities, 0% to 40% (with a target allocation of 20%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives, and up to 15% (with a target allocation of 0%) of the Fund’s assets to Underlying ETFs that invest primarily in alternative assets and strategies. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
The Fund may invest, directly or through ETFs, in securities that have exposure to foreign currencies through their underlying investments, such as in companies that trade in or receive revenues in foreign currencies.
The Fund may invest, directly or through ETFs, in illiquid or thinly traded securities.
The Fund may invest, directly or through ETFs, in bank loans.
The Fund may lend its securities to increase its income. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in underlying exchange-traded funds (“ETFs”). | ||||||||||||||||||||||||||||||
| JNL/American Funds Moderate Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are a part of either the American Funds Insurance Series® (“AFIS”) or the American Funds R6 mutual fund share class. Not all Funds of the American Funds are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 20%-60% of its assets to Underlying Funds that invest primarily in equity securities and 40%-80% of its assets to Underlying Funds that invest primarily fixed-income securities. The equity and fixed-income allocation may fall outside of the above limits in a volatile market environment where investment outcomes are expected to remain beyond normal range.
Within these asset classes, the Fund remains flexible with respect to the percentage it will allocate among Underlying Funds. In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. Fund investments may include Underlying Funds that invest in foreign bonds denominated in currencies other than U.S. dollars as well as Underlying Funds that invest exclusively in bonds of U.S. issuers. The Underlying Funds may invest in a variety of sectors and credit qualities, including government bonds, inflation-linked bonds, investment grade corporate bonds, high yield corporate bonds (commonly referred to as “junk bonds”), mortgages, and emerging market debt.
Some of the Underlying Funds may utilize a number of derivatives in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Equities Strategies, may hold a significant amount of small or mid-capitalization equities in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of junk bonds in order to execute their investment strategy. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 20%-60% of its assets to Underlying Funds that invest primarily in equity securities and 40%-80% of its assets to Underlying Funds that invest primarily fixed-income securities. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS MODERATE GROWTH ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are a part of either the American Funds Insurance Series® (“AFIS”) or the American Funds R6 mutual fund share class. Not all Funds of the American Funds are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 40%-80% of its assets to Underlying Funds that invest primarily in equity securities and 20%-60% of its assets to Underlying Funds that invest primarily fixed-income securities. The equity and fixed-income allocation may fall outside of the above limits in a volatile market environment where investment outcomes are expected to remain beyond normal range.
Within these asset classes, the Fund remains flexible with respect to the percentage it will allocate among Underlying Funds. In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. Fund investments may include Underlying Funds that invest in foreign bonds denominated in currencies other than U.S. dollars as well as Underlying Funds that invest exclusively in bonds of U.S. issuers. The Underlying Funds may invest in a variety of sectors and credit qualities, including government bonds, inflation-linked bonds, investment grade corporate bonds, high yield corporate bonds (commonly referred to as “junk bonds”), mortgages, and emerging market debt.
Some of the Underlying Funds may utilize a number of derivatives in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Equities Strategies, may hold a significant amount of small or mid-capitalization equities in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of junk bonds in order to execute their investment strategy. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 40%-80% of its assets to Underlying Funds that invest primarily in equity securities and 20%-60% of its assets to Underlying Funds that invest primarily fixed-income securities. | ||||||||||||||||||||||||||||||
| JNL/AMERICAN FUNDS GROWTH ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are a part of either the American Funds Insurance Series® (“AFIS”) or the American Funds R6 mutual fund share class. Not all the American Funds are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 60%-100% of its assets to Underlying Funds that invest primarily in equity securities, 0%-40% of its assets to Underlying Funds that invest primarily fixed-income securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities. The equity and fixed-income allocation may fall outside of the above limits in a volatile market environment where investment outcomes are expected to remain beyond normal range.
Within these asset classes, the Fund remains flexible with respect to the percentage it will allocate among Underlying Funds. In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. Fund investments may include Underlying Funds that invest in foreign bonds denominated in currencies other than U.S. dollars as well as Underlying Funds that invest exclusively in bonds of U.S. issuers. The Underlying Funds may invest in a variety of sectors and credit qualities, including government bonds, inflation-linked bonds, investment grade corporate bonds, high yield corporate bonds (commonly referred to as “junk bonds”), mortgages, and emerging market debt.
Some of the Underlying Funds may utilize a number of derivatives in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Equities Strategies, may hold a significant amount of small or mid-capitalization equities in order to execute their investment strategy. Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of junk bonds in order to execute their investment strategy. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 60%-100% of its assets to Underlying Funds that invest primarily in equity securities, 0%-40% of its assets to Underlying Funds that invest primarily fixed-income securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities. | ||||||||||||||||||||||||||||||
| JNL/BLACKROCK GLOBAL ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests in a portfolio of equity, debt and money market securities. Generally, the Fund will invest in both equity and debt securities. For purposes of this Fund, equity securities include common stock, rights and warrants, preferred stock, securities convertible into common stock, or securities or other instruments whose price is linked to the value of common stock. For purposes of this Fund, debt securities include, but are not limited to, U.S. and foreign government bonds, corporate bonds, convertible bonds, structured notes, credit-linked notes, mortgage- and asset-backed securities, loan assignments and loan participations, and securities issued by certain international organizations such as the World Bank. The Fund uses derivatives as a means of managing exposure to foreign currencies and other adverse market movements, as well as to increase returns.
At any given time, the Fund may emphasize either debt securities or equity securities; however, over time the Fund’s portfolio of assets will tend to be relatively balanced between equity and debt securities and widely diversified among many individual investments. In selecting equity investments, the Fund mainly seeks securities that BlackRock Investment Management, LLC (“Sub-Adviser”) believes are undervalued. The Fund may buy debt securities with varying maturities. The Fund may invest up to 35% of its total assets in high yield or junk bonds, corporate loans and distressed securities. Junk bonds are fixed-income securities rated below investment-grade by independent rating agencies or are bonds that are unrated but that the Sub-Adviser believes are of comparable quality. The Fund may invest in corporate loans.
When choosing investments, the Sub-Adviser considers various factors, including opportunities for equity or debt investments to increase in value, expected dividends and interest rates. The Fund generally seeks diversification across markets, industries and issuers as one of its strategies to reduce volatility. The Fund may invest in the securities of companies of any market capitalization. Market capitalization is the number of shares of a company’s stock, multiplied by the price per share of that stock. Market capitalization is a measure of a company’s size.
Generally, the Fund may invest in the securities of corporate and governmental issuers located anywhere in the world in both developed and emerging markets. The Fund may emphasize foreign securities when the Sub-Adviser expects these investments to outperform U.S. securities. When choosing investment markets, the Sub-Adviser considers various factors, including economic and political conditions, potential for economic growth and possible changes in currency exchange rates. In addition to investing in foreign securities, the Fund actively manages its exposure to foreign currencies through the use of forward currency contracts and other currency derivatives. From time to time, the Fund may own foreign cash equivalents or foreign bank deposits as part of the Fund’s investment strategy. The Fund will also invest in non-U.S. currencies, however, the Fund may underweight or overweight a currency based on the Sub-Adviser’s outlook.
The Fund’s composite “Reference Benchmark” has at all times since the Fund’s formation included a 40% weighting in non-U.S. securities. The Reference Benchmark is an unmanaged weighted index comprised as follows: 36% of the Standard & Poor’s (“S&P”) 500 Index; 24% FTSE World (ex-U.S.) Index; 24% ICE BofA Current 5-Year US Treasury Index; and 16% FTSE Non-US Dollar World Government Bond Index.
Throughout its history, the Fund has maintained a weighting in non-U.S. securities, often exceeding the 40% Reference Benchmark weighting and rarely falling below this allocation. Under normal circumstances, the Fund anticipates it will continue to allocate a substantial amount (approximately 40% or more — unless market conditions are not deemed favorable by the Sub-Adviser, in which case the Fund would invest at least 30%) — of its total assets in securities of (i) foreign government issuers; (ii) issuers organized or located outside the U.S.; (iii) issuers which primarily trade in a market located outside the U.S.; or (iv) issuers doing a substantial amount of business outside the U.S., which the Fund considers to be companies that derive at least 50% of their revenue or profits from business outside the U.S. or have at least 50% of their sales or assets outside the U.S. The Fund will allocate its assets among various regions and countries, including the United States (but in no less than three different countries). For temporary defensive purposes, when purchases or redemptions require, or during transitions, the Fund may deviate very substantially from the allocation described above.
The Fund may use derivatives, including options, futures, indexed securities, inverse securities, swaps and forward contracts both to seek to increase in the return of the Fund and to hedge (or protect) the value of its assets against adverse movements in currency exchange rates, interest rates and movements in the securities markets.
The Fund may invest in Real Estate Investment Trusts (“REITs”). The Fund may also seek to provide exposure to the investment returns of real assets that trade in the commodity markets through investment in commodity-linked derivative instruments, such as structured notes, and other investment vehicles that exclusively invest in commodities, such as exchange-traded funds (“ETFs”). The Fund may invest up to 25% of its total assets in commodity-related instruments (which may include, among others, commodity options, futures, swaps on commodity futures, ETFs that invest in commodities, and commodity-linked structured notes) (collectively, “Commodities’”).
Total investment return is the combination of capital appreciation and investment income. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund anticipates it will continue to allocate a substantial amount (approximately 40% or more — unless market conditions are not deemed favorable by the Sub-Adviser, in which case the Fund would invest at least 30%) — of its total assets in securities of (i) foreign government issuers; (ii) issuers organized or located outside the U.S.; (iii) issuers which primarily trade in a market located outside the U.S.; or (iv) issuers doing a substantial amount of business outside the U.S., which the Fund considers to be companies that derive at least 50% of their revenue or profits from business outside the U.S. or have at least 50% of their sales or assets outside the U.S. | ||||||||||||||||||||||||||||||
| JNL/BLACKROCK GLOBAL NATURAL RESOURCES FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing primarily in equity securities of companies with substantial natural resource assets. Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in companies with substantial natural resource assets or in securities the value of which is related to the market value of some natural resource assets. Equity securities include common stock, preferred stock, securities convertible into common stock, rights to subscribe for common stock, and derivative securities or instruments, such as options, the value of which is based on a common stock or group of common stocks.
Generally, a company has substantial natural resource assets when at least 50% of the non-current assets, capitalization, gross revenues or operating profits of the company in the most recent or current fiscal year are involved in or result from (directly or indirectly through subsidiaries), oil, gas, exploring, mining, extracting, refining, processing, transporting, fabricating, dealing in or owning natural resource assets. Examples of natural resource assets include precious metals (e.g., gold, silver and platinum), ferrous and nonferrous metals (e.g., iron, aluminum and copper), strategic metals (e.g., uranium and titanium), water, hydrocarbons (e.g., coal, oil and natural gas), timber land, underdeveloped real property and agricultural products (e.g., fertilizers and agricultural chemicals). The Fund normally invests in a portfolio consisting of companies in a variety of natural resource related sectors, such as energy, chemicals, oil, gas, paper, mining, steel or agricultural products. Under certain circumstances, however, the Fund will concentrate its investments in one or more of these sectors.
Generally, the Fund may invest in the securities of corporate and governmental issuers located anywhere in the world in both developed and emerging markets (but in no fewer than three countries).
In addition, the Fund will concentrate its investments in one or more issuers in the natural resources related industries. The Fund focuses on investments in companies that provide exposure to commodities where BlackRock International Limited, the Fund’s sub-adviser, sees attractive supply-and-demand dynamics. The Fund will normally invest in both U.S. and non-U.S. companies, including companies located in emerging markets, and in securities denominated in both U.S. dollars and foreign currencies. The Fund may invest in securities of issuers with any market capitalization. There are no geographic limits on the Fund’s investments.
The Fund may use derivatives to hedge its investment portfolio against market, interest rate and currency risks or to seek to enhance its return. The derivatives that the Fund may use include indexed and inverse securities, options, futures, swaps and forward foreign exchange transactions.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in companies with substantial natural resource assets or in securities the value of which is related to the market value of some natural resource assets. | ||||||||||||||||||||||||||||||
| JNL/BLACKROCK LARGE CAP SELECT GROWTH FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of U.S. large capitalization companies. The Fund defines large capitalization companies as those with a market capitalization of at least $2.0 billion at the time of investment. In addition, up to 20% of the Fund’s net assets may be invested in foreign equity securities. Investments in equity securities include common stock and preferred stock, convertible securities, as well as American Depositary Receipts (“ADRs”). The Fund may, but is not required to, use exchange-traded or over-the-counter derivative instruments for risk management purposes or as part of the Fund’s investment strategies. The derivatives in which the Fund may invest include futures and forward currency agreements and may also be used to hedge against a specific currency. In addition, futures on indices may be used for investment (non-hedging) purposes to seek to earn income; to enhance returns; to replace more traditional direct investments; or to obtain exposure to certain markets.
In selecting securities, the BlackRock Investment Management, LLC (“Sub-Adviser”) seeks to invest in companies that possess dominant market positions or franchises, a major technological edge, or a unique competitive advantage. To this end, the Sub-Adviser considers earnings revision trends, expected earnings growth rates, sales acceleration, price earnings multiples and positive stock price momentum, when selecting securities. The Sub-Adviser expects that these companies can sustain an above average return on invested capital at a higher level and over a longer period of time than is reflected in the current market prices.
In deciding whether an investment is tied to the U.S., the Sub-Adviser considers a number of factors including whether the investment is issued or guaranteed by the U.S. government or any of its agencies; the investment has its primary trading market in the U.S.; the issuer is organized under the laws of, derives at least 50% of its revenues from, or has at least 50% of its assets in, the U.S.; the investment is included in an index representative of the U.S.; or the investment is exposed to the economic fortunes and risks of the U.S.
For temporary defensive purposes during unusual economic or market conditions or for liquidity purposes, the Fund may invest up to 100% of its assets in cash, money market instruments, repurchase agreements and other short-term obligations. When the Fund engages in such activities, it may not achieve its investment objective.
The Fund maintains the flexibility to invest in securities of companies from a variety of sectors, but from time to time, based on economic conditions, the Fund may have significant investments in particular sectors, including but not limited to the consumer discretionary sector and the healthcare sector. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of U.S. large capitalization companies. | ||||||||||||||||||||||||||||||
| JNL/CAUSEWAY INTERNATIONAL VALUE SELECT FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests primarily in common stocks of companies in developed countries outside the U.S. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of companies in a number of foreign countries and invests the majority of its total assets in companies that pay dividends or repurchase their shares. The Fund may invest up to 15% of its total assets in companies in emerging (less developed) markets.
When investing the Fund’s assets, Causeway Capital Management LLC (“Sub-Adviser”) follows a value style, performing fundamental research supplemented by quantitative analysis. Beginning with a universe of all publicly listed companies throughout the non-U.S. developed and emerging markets, the Sub-Adviser applies market capitalization and liquidity thresholds to reduce investment candidates to approximately 2,000 equity securities. The Sub-Adviser uses quantitative valuation screens to further narrow the potential investment candidates. The Sub-Adviser then performs fundamental research, which generally includes company-specific research, company visits, and interviews of suppliers, customers, competitors, industry analysts, and experts. The Sub-Adviser also applies a proprietary quantitative risk model to adjust return forecasts based on risk assessments. This process results in risk-adjusted return forecasts for a closely followed group of potential investment candidates. Using a value style means that the Sub-Adviser buys stocks that it believes have lower prices than their true worth. For example, stocks may be “undervalued” because the issuing companies are in industries that are currently out of favor with investors. However, even in those industries, certain companies may have high rates of growth of earnings and be financially sound.
The Sub-Adviser considers whether a company has each of the following value characteristics in purchasing or selling securities for the Fund:
Generally, price-to-earnings and yield are the most important factors.
The Fund generally invests in companies with market capitalizations greater than $5 billion at time of investment, but may invest in companies with any market capitalization. There are no limitations on the minimum amount or maximum amount that the Fund may invest in any particular country.
The Sub-Adviser determines a company’s country by referring to: its stock exchange listing; where it is registered, organized or incorporated; where its headquarters are located; its Morningstar country classification; where it derives at least 50% of its revenues or profits from goods produced or sold, investments made, or services performed; or where at least 50% of its assets are located. These categories are designed to identify investments that are tied economically to, and subject to the risks of, investing outside the U.S. The Fund considers a country to be an emerging market if the country is included in the Morningstar Emerging Markets Index. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of companies in a number of foreign countries and invests the majority of its total assets in companies that pay dividends or repurchase their shares. | ||||||||||||||||||||||||||||||
| JNL/Cohen & Steers U.S. Realty Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities issued by real estate companies operating in the United States, including real estate investment trusts (“REITs”). Real estate equity securities include common stocks, preferred stocks, other equity securities issued by real estate companies, including REITs and similar REIT-like entities. A real estate company is one that (i) derives at least 50% of its revenue from the ownership, construction, financing, management or sale of commercial, industrial or residential real estate and land; or (ii) has at least 50% of its assets invested in real estate. REITs are companies that own interests in real estate or in real estate related loans or other interests, and their revenue primarily consists of rent derived from owned, income producing real estate properties and capital gains from the sale of such properties. The Fund may invest without limit in shares of REITs. A REIT in the U.S. is generally not taxed on income distributed to shareholders so long as it meets certain tax related requirements, including the requirement that it distribute substantially all of its taxable income to such shareholders (other than net capital gains for each taxable year). REIT-like entities are organized outside of the U.S. and have operations and receive tax treatment in their respective countries similar to that of U.S. REITs. The Fund may invest in real estate companies of any market capitalization.
Cohen & Steers Capital Management, Inc., the Fund’s sub-adviser (“Sub-Adviser”) uses a bottom-up strategy, relative value investment process when selecting publicly traded real estate securities. To guide the portfolio construction process, the Sub-Adviser uses a proprietary valuation model that quantifies relative valuation of real estate securities based on price-to-net asset value (“NAV”), cash flow multiple/growth ratios, and a dividend discount model (“DDM”). The Sub-Adviser incorporates both quantitative and qualitative analysis in their NAV, cash flow, growth and DDM estimates. The company research process includes an evaluation of the commercial real estate supply and demand dynamics, management, strategy, property quality, financial strength and corporate structure. Judgments with respect to risk control, geographic and property sector diversification, liquidity and other factors are considered along with the models’ output and drive the Sub-Adviser’s investment decisions.
The Fund may also invest in securities of foreign issuers that meet the same criteria for investment as domestic companies, including investments in American Depositary Receipts (“ADRs”), Global Depositary Receipts (“GDRs”), and European Depositary Receipts (“EDRs”).
The Fund has the ability to invest in other investment companies, such as exchange-traded funds, money market funds, unit investment trusts and open-end and closed-end funds, including affiliated investment companies.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities issued by real estate companies operating in the United States, including real estate investment trusts (“REITs”). | ||||||||||||||||||||||||||||||
| JNL/DFA International Core Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | To achieve the Fund’s investment objective, Dimensional Fund Advisors LP, the Fund’s sub-adviser (“Sub-Adviser”), implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Fund’s design emphasizes long-term drivers of expected returns identified by the Sub-Adviser’s research, while balancing risk through broad diversification across companies and sectors. The Sub-Adviser’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.
The Fund is designed to purchase a broad and diverse group of equity securities within a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of the universe it represents) of non-U.S. companies associated with developed markets that have been authorized for investment by the Sub-Advisor’s Investment Committee (the “International Universe”). Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in non-U.S. equity securities and/or investments that provide exposure to non-U.S. securities. The Fund invests in companies of all sizes, with meaningfully increased exposure to smaller capitalization, lower relative price, and higher profitability companies as compared to their representation in the International Universe. The Fund’s meaningfully increased exposure to smaller capitalization, lower relative price, and higher profitability companies may be achieved by decreasing the allocation of the Fund’s assets to larger capitalization, higher relative price, or lower profitability companies relative to their weight in the International Universe. An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Sub-Adviser may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Sub-Adviser uses for assessing relative price and profitability are subject to change from time to time.
Under normal circumstances, the Fund intends to invest at least 40% of its assets in three or more non-U.S. countries by investing in securities of companies associated with such countries.
The Fund intends to purchase securities of companies associated with developed market countries that the Sub-Adviser has designated as approved markets. The Sub-Adviser determines company size on a country- or region-specific basis and based primarily on market capitalization. The Sub-Adviser may also increase or reduce the Fund’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum, short-run reversals, and investment characteristics. In assessing a company’s investment characteristics, the Sub-Adviser considers ratios such as recent changes in assets divided by total assets. The criteria the Sub-Adviser uses for assessing a company’s investment characteristics are subject to change from time to time. In addition, the Sub-Adviser seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.
The Fund may gain exposure to companies associated with approved markets by purchasing equity securities in the form of depositary receipts, which may be listed or traded outside the issuer’s domicile country. The Fund also may purchase or sell futures contracts and options on futures contracts for foreign or U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Fund. Because many of the Fund’s investments may be denominated in foreign currencies, the Fund may enter into foreign currency exchange transactions, including foreign currency forward contracts, in connection with the settlement of foreign securities or to transfer cash balances from one currency to another currency. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund intends to invest at least 40% of its assets in three or more non-U.S. countries by investing in securities of companies associated with such countries. | ||||||||||||||||||||||||||||||
| JNL/DFA U.S. CORE EQUITY FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | To achieve the Fund’s investment objective, Dimensional Fund Advisors LP, the Fund’s sub-adviser (“Sub-Adviser”), implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Fund’s design emphasizes long-term drivers of expected returns identified by the Sub-Adviser’s research, while balancing risk through broad diversification across companies and sectors. The Sub-Adviser’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.
The Fund is designed to purchase a broad and diverse group of equity securities within a market capitalization weighted universe (e.g., the larger the company, the greater the proportion of the universe it represents) of U.S. companies (the “U.S. Universe”). Under normal market conditions, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of U.S. companies. The Sub-Adviser generally defines a U.S. company as one that is listed and principally traded on a securities exchange in the United States that is deemed appropriate by the Sub-Adviser. The Fund invests in companies of all sizes, with moderately increased exposure to smaller capitalization, lower relative price, and higher profitability companies as compared to their representation in the U.S. Universe. The Fund’s moderately increased exposure to smaller capitalization, lower relative price, and higher profitability companies may be achieved by decreasing the allocation of the Fund’s assets to larger capitalization, higher relative price, or lower profitability companies relative to their weight in the U.S. Universe. An equity issuer is considered to have a high relative price (i.e., a growth stock) primarily because it has a high price in relation to its book value. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Sub-Adviser may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Sub-Adviser uses for assessing relative price and profitability are subject to change from time to time.
The Sub-Adviser may also increase or reduce the Fund’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum, short-run reversals, and investment characteristics. In assessing a company’s investment characteristics, the Sub-Adviser considers ratios such as recent changes in assets divided by total assets. The criteria the Sub-Adviser uses for assessing a company’s investment characteristics are subject to change from time to time. In addition, the Sub-Adviser seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.
The Fund may purchase or sell futures contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Fund.
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of U.S. companies. | ||||||||||||||||||||||||||||||
| JNL/DFA U.S. Small Cap Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | To achieve the Fund’s investment objective, Dimensional Fund Advisors LP, the Fund’s sub-adviser (“Sub-Adviser”), implements an integrated investment approach that combines research, portfolio design, portfolio management, and trading functions. As further described below, the Fund’s design emphasizes long-term drivers of expected returns identified by the Sub-Adviser’s research, while balancing risk through broad diversification across companies and sectors. The Sub-Adviser’s portfolio management and trading processes further balance those long-term drivers of expected returns with shorter-term drivers of expected returns and trading costs.
The Fund, using a market capitalization weighted approach, is designed to purchase a broad and diverse group of readily marketable securities of U.S. small capitalization companies. The Sub-Adviser generally defines a U.S. company as one that is listed and principally traded on a securities exchange in the United States that is deemed appropriate by the Sub-Adviser. A company’s market capitalization is the number of its shares outstanding times its price per share. Under a market capitalization weighted approach, companies with higher market capitalizations generally represent a larger proportion of the Fund than companies with relatively lower market capitalizations. The Fund may emphasize certain stocks, including smaller capitalization companies, lower relative price stocks, and/or higher profitability stocks as compared to their representation in the small-cap segment of the U.S. market. An equity issuer is considered to have a low relative price (i.e., a value stock) primarily because it has a low price in relation to its book value. In assessing relative price, the Sub-Adviser may consider additional factors such as price to cash flow or price to earnings ratios. An equity issuer is considered to have high profitability because it has high earnings or profits from operations in relation to its book value or assets. The criteria the Sub-Adviser uses for assessing relative price and profitability are subject to change from time to time.
As a non-fundamental policy, under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities of U.S. small-capitalization companies. As of the date of this Prospectus, for purposes of the Fund, the Sub-Adviser considers small-capitalization companies to be companies whose market capitalizations are generally in the lowest 10% of total market capitalization or companies whose market capitalizations are smaller than the 1,000th largest U.S. company, whichever results in the higher market capitalization break. Total market capitalization is based on the market capitalization of eligible U.S. operating companies listed on a securities exchange in the United States that is deemed appropriate by the Sub-Adviser. Under the Sub-Adviser’s market capitalization guidelines described above, based on market capitalization data as of December 31, 2025, the market capitalization of a small-capitalization company would be $16.77 billion or below. This threshold will change due to market conditions.
The Sub-Adviser may also increase or reduce the Fund’s exposure to an eligible company, or exclude a company, based on shorter-term considerations, such as a company’s price momentum, short-run reversals, and investment characteristics. In assessing a company’s investment characteristics, the Sub-Adviser considers ratios such as recent changes in assets divided by total assets. The criteria the Sub-Adviser uses for assessing a company’s investment characteristics are subject to change from time to time. In addition, the Sub-Adviser seeks to reduce trading costs using a flexible trading approach that looks for opportunities to participate in the available market liquidity, while managing turnover and explicit transaction costs.
The Fund may purchase or sell futures contracts and options on futures contracts for U.S. equity securities and indices to increase or decrease equity market exposure based on actual or expected cash inflows to or outflows from the Fund.
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| Strategy Portfolio Concentration [Text] | As a non-fundamental policy, under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities of U.S. small-capitalization companies. | ||||||||||||||||||||||||||||||
| JNL/DOUBLELINE CORE FIXED INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of fixed-income instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, swap agreements, or commodity-linked derivatives. For purposes of satisfying the 80% requirement, the Fund may also invest in derivative instruments that have economic characteristics similar to the fixed-income instruments mentioned above. “Fixed-Income instruments” include but are not limited to bonds, debt securities and other fixed income and income-producing instruments of any kind issued or guaranteed by governmental or private sector entities, including securities issued or guaranteed by the United States Government, its agencies, instrumentalities or sponsored corporations; corporate obligations (including foreign subordinated or junior subordinated bank debt, including Tier 1 preferred or hybrid bank debt, and Tier 2 debt); mortgage-backed securities; asset-backed securities (“ABS”); foreign securities (corporate, currencies and government); emerging market securities (corporate, quasi-sovereigns and government); bank loans and assignments; ABS loans and other securities bearing fixed or variable interest rates of any or no maturity. Such Fixed-Income instruments may be indexed to inflation by certain issuers. In managing the Fund’s investments, under normal market conditions, the portfolio manager intends to seek to construct an investment portfolio with a weighted average effective duration of no less than two years and no more than eight years, as calculated by DoubleLine Capital LP (“DoubleLine”). Duration is a measure of the expected life of a fixed-income security that is used to determine the sensitivity of a security’s price to changes in interest rates. DoubleLine may seek to manage the duration of the Fund’s portfolio through the use of derivative instruments and other investments (including, among others, inverse floaters, futures contracts, U.S. Treasury swaps, interest rate swaps, total return swaps and options, including options on swap agreements). The Fund incurs costs in implementing duration management strategies, and there can be no assurance that the Fund will engage in duration management strategies or that any duration management strategy employed by the Fund will be successful.
The Fund invests primarily in investment grade debt securities, but may invest up to 33 1/3% of its total assets in high-yield securities (“junk bonds”), bank loans or assignments rated BB+ or lower by Moody’s or equivalently rated by S&P Global Ratings, Fitch Inc., Kroll, DBRS, Morningstar, or any other NRSRO, or, if unrated, determined by DoubleLine to be of comparable quality. DoubleLine does not consider the term “junk bonds” to include mortgage-backed securities or any other ABS, regardless of their credit rating or credit quality.
The Fund may invest up to 30% of its total assets in securities or derivatives denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers.
The Fund may invest up to 30% of its total assets in securities and instruments that are economically tied to emerging market countries. An “emerging market country” is a country that, at the time the Fund invests in the related fixed income instruments, is classified as an emerging or developing economy by any supranational organization such as an institution in the World Bank Group or the United Nations, or an agency thereof, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Fund may invest all of its assets in derivative instruments, such as options, futures contracts or swap agreements, or in mortgage-backed securities or ABS. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a Fund of purchase and sale contracts or by using other investment techniques (such as buybacks or dollar rolls). The “total return” sought by the Fund consists of income earned on the Fund’s investments, plus capital appreciation, if any, which generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.
The Fund may also invest up to 10% of its total assets in preferred stock, convertible securities and other equity related securities. The Fund may invest in other investment companies, including, for example, other open-end or closed-end investment companies, exchange-traded funds (“ETFs”), and domestic or foreign private investment vehicles, including investment companies sponsored or managed by DoubleLine or its affiliates. The Fund may invest in securities issued by companies in the financial services sector.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of fixed-income instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts, swap agreements, or commodity-linked derivatives. | ||||||||||||||||||||||||||||||
| JNL/DOUBLELINE EMERGING MARKETS FIXED INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income instruments with exposure to emerging markets countries. These fixed-income instruments include but are not limited to bonds, debt securities and other fixed income and income-producing instruments of any kind issued or guaranteed by governmental or private sector entities, including securities issued or guaranteed by companies (including foreign hybrid securities), financial institutions and government entities in emerging market countries and other securities bearing fixed or variable interest rates of any or no maturity. The Fund will generally invest in at least four emerging market countries.
An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing economy by any supranational organization such as the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index. In addition, DoubleLine Capital LP (“Sub-Adviser”) has broad discretion to identify other countries that it considers to be emerging market countries. In determining whether an issuer of non-sovereign debt is in an emerging market country, the Sub-Adviser may look to the issuer’s “country of risk”, as classified in Bloomberg. Bloomberg’s determination of “country of risk” is based on a number of criteria, including country of domicile, country of primary listing, country of majority revenue, and reporting currency. The Sub-Adviser may also classify a non-sovereign issuer as an emerging market issuer on a basis other than Bloomberg’s “country of risk” classification.
The Fund may invest, without limitation, in fixed-income instruments of any credit quality, including those that at the time of investment are unrated or rated BB+ or lower by S&P or Ba1 or lower by Moody’s or the equivalent by any other nationally recognized statistical rating organization or unrated securities judged by the Sub-Adviser to be of comparable quality. Corporate bonds and certain other fixed-income instruments rated below investment grade, or such instruments that are unrated and determined by the Sub-Adviser to be of comparable quality, are high yield, high risk bonds, commonly known as junk bonds. The Fund may invest in hybrid securities relating to emerging market countries. A third party or the Sub-Adviser may create a hybrid security by combining an income producing debt security and the right to receive payment based on the change in the price of an equity security.
The Fund may invest up to 15% of its net assets in defaulted corporate securities. The Fund might do so, for example, where the Sub-Adviser believes the restructured enterprise valuations or liquidation valuations may exceed current market values. In addition, the Fund may invest in defaulted sovereign investments, including, for example, where the Sub-Adviser believes the expected debt sustainability of the country is not reflected in current market valuations. The Fund may invest in derivatives and other instruments, such as options, swaps (including credit default swaps), futures, structured investments, foreign currency futures and forward contracts. These practices may be used to hedge the Fund’s portfolio as well as for investment purposes; however, such practices sometimes may reduce returns or increase volatility.
In allocating investments among various emerging market countries, the Sub-Adviser attempts to analyze internal political, market and economic factors. These factors may include:
In managing the Fund’s investments, under normal market conditions, the Sub-Adviser intends to seek to construct an investment portfolio with a weighted average effective duration of no less than two years and no more than eight years. Duration is a measure of the expected life of a fixed-income instrument that is used to determine the sensitivity of a security’s price to changes in interest rates. Effective duration is a measure of the Fund’s portfolio duration adjusted for the anticipated effect of interest rate changes on bond and mortgage pre-payment rates. The effective duration of the Fund’s investment portfolio may vary materially from its target range, from time to time, and there is no assurance that the effective duration of the Fund’s investment portfolio will always be within its target range.
The Fund may invest without limit in investments denominated in any currency, but currently expects to invest a substantial amount of its assets in investments denominated in the U.S. dollar.
The Fund may pursue its investment objective and obtain exposures to some or all of the asset classes described in its principal investment strategies by investing in other investment companies, such as exchange-traded funds.
Portfolio securities may be sold at any time. By way of example, sales may occur when the Fund’s Sub-Adviser perceives deterioration in the credit fundamentals of the issuer, when the Sub-Adviser believes there are negative macro geo-political considerations that may affect the issuer, when the Sub-Adviser determines to take advantage of a better investment opportunity, or when the individual security has reached the Sub-Adviser’s sell target.
The Fund may lend its securities to increase its income.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income instruments with exposure to emerging markets countries. | ||||||||||||||||||||||||||||||
| JNL/DoubleLine Shiller Enhanced CAPE Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by looking to achieve total return (capital appreciation and current income) in excess of the Shiller Barclays CAPE® US Sector II ER USD Index (the “Index”).
The Fund will seek to use derivatives, or a combination of derivatives and direct investments, to provide a return that tracks closely the performance of the Index. The Fund will also invest in a portfolio of debt securities to seek to provide additional long-term total return. The Fund uses investment leverage in seeking to provide both the Index return and the return on a portfolio of debt securities; it is likely that the Fund will have simultaneous exposures both to the Index and to debt securities, in each case in an amount potentially up to the value of the Fund’s assets. It is possible that the Fund could lose money at the same time on both its investments in debt securities and its exposure to the Index.
The Fund will normally use derivatives in an attempt to create an investment return approximating the Index’s return. The transaction pricing of any swap transaction will reflect a number of factors, including the limited availability of the Index, that will cause the return on the swap transaction to underperform the Index. Please see “Note regarding Index-Based Swaps” in the Prospectus for more information. The Fund expects to use only a small percentage of its assets to attain the desired exposure to the Index because of the structure of the derivatives the Fund expects to use. As a result, use of those derivatives along with other investments will create investment leverage in the Fund’s portfolio. In certain cases, however, such derivatives might be unavailable or the pricing of those derivatives might be unfavorable; in those cases, the Fund might attempt to replicate the Index return by purchasing some or all of the securities comprising the Index at the time. If the Fund at any time invests directly in the securities comprising the Index, those assets will be unavailable for investment in debt instruments, and the Fund’s ability to pursue its investment strategy and achieve its investment objective may be limited.
To the extent use of the above-described derivatives strategy leaves a substantial portion of the Fund’s assets available for other investment by the Fund, the Fund expects to invest those assets in a portfolio of debt instruments managed by DoubleLine Capital LP (the “Sub-Adviser”) to seek to provide additional long-term total return.
The Index incorporates the principles of long-term investing distilled by Dr. Robert Shiller and expressed through the CAPE® (Cyclically Adjusted Price Earnings) ratio (the “CAPE® Ratio”). The Index aims to identify undervalued sectors based on a modified CAPE® Ratio, and then uses a momentum factor to seek to reduce the risk of investing in a sector that may appear undervalued, but which may have also had recent relative price underperformance due to fundamental issues with the sector that may negatively affect the sector’s long-term total return.
The classic CAPE® Ratio is used to assess equity market valuations and averages ten years of reported earnings to account for earnings and market cycles. Traditional valuation measures, such as the price-earnings (PE) ratio, by contrast, typically rely on earnings information from only the past year. The Index uses a modified version of the classic CAPE® Ratio to standardize the comparison across sectors. There can be no assurance that the Index will provide a better measure of value than more traditional measures, over any period or over the long term.
Through the Index, the Fund will have focused exposures to the sectors making up the Index. As of the date of this Prospectus, the eleven sectors making up the Index include: Communication Services, Consumer Discretionary, Consumer Staples, Energy, Financials, Health Care, Industrials, Materials, Technology, Utilities and Real Estate. As a result, the Fund’s net asset value may be affected to a greater degree by factors affecting those sectors or industries than a fund that invests more broadly.
Under normal circumstances, to the extent use of the above-described derivatives strategy leaves a substantial portion of the Fund’s assets available for other investment by the Fund, the Fund intends to invest those assets in a portfolio of debt instruments managed by the Sub-Adviser to seek to provide additional long-term total return. The Fund may invest directly in debt instruments; alternatively, the Sub-Adviser may choose to invest all or a portion of the Fund’s assets in one or more fixed-income funds managed by the Sub-Adviser. Debt instruments in which the Fund may invest include, by way of example, (i) securities or other income-producing instruments issued or guaranteed by the U.S. Government, its agencies, instrumentalities or sponsored corporations (including inflation-protected securities); (ii) corporate obligations (including foreign hybrid securities); (iii) mortgage-backed securities (including commercial and residential mortgage-backed securities) and other asset-backed securities (including commodity-linked derivatives), collateralized mortgage obligations (“CMOs”), government mortgage pass-through securities, multiclass pass-through securities, private mortgage pass-through securities, stripped mortgage securities (e.g., interest-only and principal-only securities), and inverse floaters; (iv) collateralized debt obligations (“CDOs”), including collateralized loan obligations (“CLOs”); (v) foreign securities (corporate and government), including emerging market securities; (vi) bank loans and assignments and other fixed and floating rate loans (including, among others, senior loans, second lien or other subordinated or unsecured fixed or floating rate loans, delayed funding loans and revolving credit facilities); (vii) municipal securities and other debt obligations issued by states, local governments, and government-sponsored entities, including their agencies, authorities, and instrumentalities; (viii) inflation-indexed bonds; (ix) convertible securities; (x) preferred securities; (xi) Real Estate Investment Trust (“REIT”) securities; (xii) distressed and defaulted securities; (xiii) payment-in-kind bonds; (xiv) zero-coupon bonds; (xv) custodial receipts, cash and cash equivalents; (xvi) short-term, high quality investments, including, for example, commercial paper, bankers’ acceptances, certificates of deposit, bank time deposits, repurchase agreements, and investments in money market mutual funds or similar pooled investments; and (xvii) other instruments bearing fixed, floating, or variable interest rates of any maturity. The Fund may invest in any level of the capital structure of an issuer of mortgage-backed or asset-backed securities, including the equity or “first loss” tranche.
The Sub-Adviser may invest Fund assets in other funds managed by the Sub-Adviser from time to time in order to obtain the Fund’s desired investment exposure. Investing in other funds managed by the Sub-Adviser involves potential conflicts of interest. For example, the Sub-Adviser or its affiliates may receive fees based on the amount of assets invested in such other investment vehicles. This and other factors may give the Sub-Adviser an economic or other incentive to make or retain an investment for the Fund in an affiliated investment vehicle in lieu of other investments that may also be appropriate for the Fund. To reduce this potential conflict of interest, the Sub-Adviser has agreed to reduce its advisory fee to the extent of advisory fees paid to the Sub-Adviser or its affiliates by other investment vehicles in respect of assets of the Fund invested in those vehicles.
The Fund’s portfolio of debt instruments will normally have an overall weighted average effective duration of not less than one year or more than eight years. Duration is a measure of the expected life of a fixed-income instrument that is used to determine the sensitivity of a security’s price to changes in interest rates. Effective duration is a measure of the Fund’s portfolio duration adjusted for the anticipated effect of interest rate changes on bond and mortgage pre-payment rates. The longer a portfolio’s effective duration, the more sensitive it will be to changes in interest rates. The effective duration of the Fund’s portfolio of debt instruments may vary materially from its target range, from time to time, and there is no assurance that the effective duration of the portfolio will always be within its target range.
The Fund may invest in debt instruments of any credit quality, including those that are at the time of investment unrated or rated BB+ or lower by S&P or Ba1 or lower by Moody’s or the equivalent by any other nationally recognized statistical rating organization. Corporate bonds and certain other fixed-income instruments rated below investment grade, or such instruments that are unrated and determined by the Sub-Adviser to be of comparable quality, are high yield, high risk bonds, commonly known as junk bonds. Generally, lower-rated debt securities offer a higher yield than higher-rated debt securities of similar maturity but are subject to greater risk of loss of principal and interest than higher-rated securities of similar maturity. The Fund may invest up to 33 1/3% of its net assets in junk bonds, bank loans and assignments rated below investment grade or unrated but determined by the Sub-Adviser to be of comparable quality, and credit default swaps of companies in the high yield universe. The Sub-Adviser does not consider the term “junk bonds” to include any mortgage-backed securities or any other asset-backed securities, regardless of their credit rating or credit quality.
The Fund may invest up to 5% of its net assets in defaulted corporate securities. Repayment of defaulted securities and obligations of distressed issuers (including insolvent issuers or issuers in payment or covenant default, in workout or restructuring or in bankruptcy or in solvency proceedings) is subject to significant uncertainties.
The Fund may invest a portion of its net assets in inverse floater securities and interest-only and principal-only securities. An inverse floater is a type of instrument, which may be backed by or related to a mortgage-backed security, that bears a floating or variable interest rate that moves in the opposite direction to movements in interest rates generally or the interest rate on another security or index. Interest-only and principal-only securities may also be backed by or related to a mortgage-backed security. As a result, they are highly sensitive to actual or anticipated changes in prepayment rates on the underlying securities.
The Fund may invest a portion of its net assets in debt instruments (including hybrid securities) issued or guaranteed by companies, financial institutions and government entities in emerging market countries. An “emerging market country” is a country that, at the time the Fund invests in the related fixed-income instruments, is classified as an emerging or developing economy by any supranational organization such as the United Nations, or related entities, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Fund may invest in other investment companies, including, for example, other open-end or closed-end investment companies, ETFs, and domestic or foreign private investment vehicles, including investment companies sponsored or managed by the Sub-Adviser and its affiliates. The Fund may engage in short sales, either to earn additional return or to hedge existing investments.
In managing the Fund’s debt instruments, under normal market conditions, the Sub-Adviser uses a controlled risk approach. The techniques of this approach attempt to control the principal risk components of the fixed-income markets and may include consideration of:
The Sub-Adviser also utilizes active asset allocation and monitors the duration of the Fund’s fixed-income securities to seek to mitigate the Fund’s exposure to interest rate risk.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, to the extent use of the above-described derivatives strategy leaves a substantial portion of the Fund’s assets available for other investment by the Fund, the Fund intends to invest those assets in a portfolio of debt instruments managed by the Sub-Adviser to seek to provide additional long-term total return. | ||||||||||||||||||||||||||||||
| JNL/DoubleLine Total Return Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund intends to invest more than 50% of its net assets in residential and commercial mortgage-backed securities and U.S. Treasury obligations. These investments may include mortgage-backed securities of any maturity or type, including those guaranteed by, or secured by collateral that is guaranteed by, the United States Government, its agencies, instrumentalities or sponsored corporations, and privately issued mortgage-backed securities rated at the time of investment Aa3 or higher by Moody’s Investor Service, Inc. (“Moody’s”) or AA- or higher by S&P Global Ratings (“S&P”) or the equivalent by any other nationally recognized statistical rating organization or in unrated securities that are determined by DoubleLine Capital LP, the Fund’s sub-adviser (“Sub-Adviser”) to be of comparable quality. These investments also include, among others, government mortgage pass-through securities, collateralized mortgage obligations (“CMOs”), multiclass pass-through securities, private mortgage pass-through securities, stripped mortgage securities (interest-only and principal-only securities) and inverse floaters.
Since the Fund’s inception, the Fund has historically invested substantially all of its assets in the mortgage-backed securities described above; short-term investments, such as notes issued by U.S. Government agencies and shares of money market funds; and, from time to time, other asset-backed backed obligations, collateralized loan obligations (“CLOs”), collateralized debt obligations (“CDOs”), and obligations of the U.S. Government and its agencies, instrumentalities, or sponsored corporations. The Fund may invest in other instruments as part of its principal investment strategies, but it has not historically done so and there can be no assurance it will do so in the future.
In managing the Fund’s portfolio, the Sub-Adviser typically uses a controlled-risk approach. The techniques of this approach attempt to control the principal risk components of the fixed income markets and may include, among other factors, consideration of the Sub-Adviser’s view of the following: the potential relative performance of various market sectors, security selection available within a given sector, the risk/reward equation for different asset classes, liquidity conditions in various market sectors, the shape of the yield curve and projections for changes in the yield curve, potential fluctuations in the overall level of interest rates, and current fiscal policy.
Under normal circumstances, the Fund intends to invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in bonds. Bonds include bonds, debt securities, and other fixed income instruments issued by governmental or private-sector entities. For purposes of satisfying the 80% requirement, the Fund may also invest in derivative instruments that have economic characteristics similar to the fixed-income instruments mentioned above.
The Fund may invest in bonds of any credit quality, including those that are at the time of investment unrated or rated BB+ or lower by S&P or Ba1 or lower by Moody’s or the equivalent by any other nationally recognized statistical rating organization. Bonds and fixed income instruments rated below investment grade, or such instruments that are unrated and determined by the Sub-Adviser to be of comparable quality, are high yield, high risk bonds, commonly known as junk bonds. The Fund may invest up to 33⅓% of its net assets in junk bonds, bank loans and assignments rated below investment grade or unrated but determined by the Sub-Adviser to be of comparable quality, and credit default swaps of companies in the high yield universe. The Sub-Adviser does not consider the term “junk bonds” to include any mortgage-backed securities or any other asset-backed securities (“ABS”), regardless of their credit rating or credit quality. The Fund may invest a portion of its net assets in inverse floater securities and interest-only and principal-only securities.
The Sub-Adviser monitors the duration of the Fund’s portfolio securities to seek to assess and, in its discretion, adjust the Fund’s exposure to interest rate risk. The Sub-Adviser may seek to manage the duration of the Fund’s portfolio through the use of derivative instruments and other investments (including, among others, inverse floaters, futures contracts, U.S. Treasury swaps, interest rate swaps, total return swaps and options, including options on swap agreements). The Fund incurs costs in implementing duration management strategies, and there can be no assurance that the Fund will engage in duration management strategies or that any duration management strategy employed by the Fund will be successful. In managing the Fund’s investments, under normal market conditions, the Sub-Adviser intends to seek to construct an investment portfolio with a weighted average effective duration of no less than one year and no more than eight years. Duration is a measure of the expected life of a fixed income instrument that is used to determine the sensitivity of a security’s price to changes in interest rates. Effective duration is a measure of the Fund’s portfolio duration adjusted for the anticipated effect of interest rate changes on bond and mortgage prepayment rates. For example, the value of a portfolio of fixed income securities with an average duration of three years would generally be expected to decline by approximately 3% if interest rates rose by one percentage point. The effective duration of the Fund’s investment portfolio may vary materially from its target range, from time to time, and there is no assurance that the effective duration of the Fund’s investment portfolio will always be within its target range.
The Fund may invest its assets in derivative instruments, such as options, futures contracts, swap agreements, commodity-linked derivatives, or in mortgage-backed securities or ABS. The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales.
Portfolio securities may be sold at any time. By way of example, sales may occur when the Sub-Adviser determines to take advantage of what the Sub-Adviser considers to be a better investment opportunity, when the Sub-Adviser believes the portfolio securities no longer represent relatively attractive investment opportunities, when the Sub-Adviser perceives deterioration in the credit fundamentals of the issuer, or when the Sub-Adviser believes it would be appropriate to do so in order to readjust the duration of the Fund’s investment portfolio.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund intends to invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in bonds. | ||||||||||||||||||||||||||||||
| JNL/DREYFUS GOVERNMENT MONEY MARKET FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund seeks to achieve its investment objective by investing at least 99.5% of its total assets in cash, U.S. Government securities, and/or repurchase agreements that are “collateralized fully” (i.e., collateralized by cash or government securities). The government securities typically have a maximum remaining maturity of 397 calendar days and the repurchase agreements are collateralized by cash or government securities. Under normal circumstances, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in government securities or repurchase agreements collateralized by government securities. As a government money market fund, the Fund is exempt from requirements that permit money market funds to impose a liquidity fee. While the Fund’s Board of Trustees may elect to subject the Fund to liquidity fee requirements in the future, the Board of Trustees has not elected to do so at this time. The Fund seeks to maintain a stable net asset value of $1.00 per share, neither the Federal Deposit Insurance Company, nor any other government agency insures or protects your investment.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund seeks to achieve its investment objective by investing at least 99.5% of its total assets in cash, U.S. Government securities, and/or repurchase agreements that are “collateralized fully” (i.e., collateralized by cash or government securities). | ||||||||||||||||||||||||||||||
| JNL/Fidelity Institutional AM & JPMorgan Large Cap Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities or other equity investments with large market capitalizations. Large-capitalization companies are those companies with market capitalizations similar to companies in the Morningstar US Target Market Exposure Index (the “Index”). The size of the companies in the Index changes with market conditions and the composition of the Index. As of December 31, 2025, the range of such companies in the Index was $11.6 billion to $4.5 trillion. The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds.
The Fund has flexibility in the relative weighting of each asset class and expects to vary the percentages of assets invested in each asset class from time to time. JNAM’s allocations to the underlying Sub-Advisers will be a function of a variety of factors including each underlying strategy’s expected returns, volatility, correlation, and contribution to the Fund’s overall risk profile.
Two unaffiliated investment managers (“Sub-Advisers”) generally provide day to day management for a portion of the Fund’s assets (each portion is sometimes referred to as a “sleeve”). Each Sub-Adviser may use different investment strategies in managing Fund assets, acts independently from the others, and uses its own methodology for selecting investments. Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for identifying and retaining the Sub-Advisers for the selected strategies and for monitoring the services provided by the Sub-Advisers. JNAM provides qualitative and quantitative supervision as part of its process for selecting and monitoring the Sub-Advisers. JNAM is also responsible for selecting the Fund’s investment strategies and for determining the amount of Fund assets to allocate to each Sub-Adviser. Based on JNAM’s ongoing evaluation of the Sub-Advisers, JNAM may adjust allocations among Sub-Advisers.
The Fund may use derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may be used as substitutes for securities in which the Fund can invest. To the extent the Fund uses derivatives, the Fund will primarily use futures contracts to more effectively gain targeted equity exposure from its cash positions. Derivative instruments that provide investment exposure to the investments above or exposure to one or more market risk factors associated with such investments are included in the Fund’s 80% policy and are consistent with the Fund’s investment policies and limitations with respect to investments in derivatives.
JNAM also may choose to allocate the Fund’s assets to additional Sub-Advisers or to replace/remove Sub-Advisers in the future. There is no assurance that any or all of the strategies discussed in this prospectus will be used by JNAM or the Sub-Advisers.
JNAM may also manage Fund assets directly to seek to enhance returns, or to hedge and to manage the Fund’s cash and short-term instruments.
Below are the principal investment strategies for each Sub-Adviser’s strategy, but the Sub-Advisers may also implement other investment strategies in keeping with their respective strategy’s objective.
JPMorgan Strategy
J.P. Morgan Investment Management Inc. (“JPMorgan”) that seeks to identify companies with positive price momentum and attractive fundamentals. JPMorgan seeks structural disconnects which allow businesses to exceed market expectations. These disconnects may result from: demographic/cultural changes, technological advancements and/or regulatory changes. JPMorgan’s assessment is based on an analysis of key opportunities and risks across industries to seek to identify financially material issues with respect to JPMorgan Strategy’s investments in securities and ascertain key issues that merit engagement with issuers. These assessments may not be conclusive and securities of issuers that may be negatively impacted by such factors may be purchased and retained by JPMorgan while the JPMorgan Strategy may divest or not invest in securities of issuers that may be positively impacted by such factors.
FIAM Strategy
FIAM LLC (“FIAM”) constructs the strategy by investing primarily in common stocks of blue chip growth companies that FIAM believes are well-known, well-established and well-capitalized, which generally have large or medium market capitalizations. FIAM invests in “growth companies,” which are companies that FIAM believes have above average growth potential.
FIAM considers a number of factors in determining a company’s growth potential, such as whether the company is included in a third-party growth benchmark or classified as a growth company by a third-party vendor, if the company’s projected earnings per share growth, sales growth per share or free cash flow growth or its trailing earnings per share growth is above the equity market median, if the company’s research and development expenses exceed sales, general and administrative expenses, or if the company is raising capital to grow, fund or expand its business. A company’s growth potential can be determined under any of these factors.
FIAM uses fundamental analysis of factors such as each issuer’s financial condition and industry position, as well as market and economic conditions, to select investments.
FIAM may invest the assets of the FIAM strategy in securities of foreign issuers in addition to securities of domestic issuers. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities or other equity investments with large market capitalizations. Large-capitalization companies are those companies with market capitalizations similar to companies in the Morningstar US Target Market Exposure Index (the “Index”) | ||||||||||||||||||||||||||||||
| JNL/FIDELITY INSTITUTIONAL AM TOTAL BOND FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in debt securities of all types and repurchase agreements for those securities. The Fund may invest up to 20% of its assets in lower-quality debt securities (those of less than investment-grade quality, also referred to as “high yield debt securities” or “junk bonds”).
FIAM LLC, the Fund’s sub-adviser (“Sub-Adviser”), uses the Bloomberg U.S. Aggregate Index (the “Index”) as a guide in allocating the Fund’s assets across the investment-grade, high yield, and emerging market asset classes. The Sub-Adviser manages the Fund to have similar overall interest rate risk to the Index.
The Sub-Adviser may invest the Fund’s assets in securities of foreign issuers in addition to securities of domestic issuers.
The Sub-Adviser allocates the Fund’s assets among different asset classes, different market sectors (for example, corporate, asset-backed, or government securities), and different maturities based on the Sub-Adviser’s view of the relative value of each sector or maturity.
The Sub-Adviser analyzes the credit quality of the issuer, the issuer’s potential for success, the credit, currency, and economic risks of the security and its issuer, security-specific features, current and potential future valuation, and trading opportunities to select investments.
The Sub-Adviser may engage in transactions that have a leveraging effect on the Fund, including investments in derivatives, regardless of whether the Fund may own the asset, instrument, currency, or components of the index underlying the derivative, and forward-settling securities. The Sub-Adviser may invest a significant portion of the Fund’s assets in these types of investments. The Fund’s derivative investments may include interest rate swaps, total return swaps, credit default swaps, options (including options on futures and swaps), forwards, commodity-linked derivatives, and futures contracts (both long and short positions) on securities, other instruments, indexes, or currencies. Depending on the Sub-Adviser’s outlook and market conditions, the Sub-Adviser may engage in these transactions to increase or decrease the Fund’s exposure to changing security prices, interest rates, credit qualities, foreign exchange rates, or other factors that affect security values, or to gain or reduce exposure to an asset, instrument, currency, or index.
In addition to the principal investment strategies discussed above, the Sub-Adviser may invest in collateralized loan obligations. |
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| Strategy Portfolio Concentration [Text] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in debt securities of all types and repurchase agreements for those securities. | ||||||||||||||||||||||||||||||
| JNL/FIRST SENTIER GLOBAL INFRASTRUCTURE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] |
The Fund defines non-U.S. companies as companies (i) that are organized under the laws of a foreign country; (ii) whose principal trading market is in a foreign country; or (iii) that have a majority of their assets, or that derive a significant portion of their revenue or profits from businesses, investments or sales, outside of the United States. Under normal market conditions, the Fund invests significantly (ordinarily at least 40% — unless market conditions are not deemed favorable by the Fund’s sub-adviser, in which case the Fund would invest at least 30%) in non-U.S. infrastructure companies.
The Fund defines an infrastructure company as one that exhibits the characteristics of high barriers to entry, strong pricing power, predictable cash flows and sustainable growth. The Fund defines infrastructure assets, among other things, as the physical structures, networks and systems of transportation, energy, water, waste, and communication. Given the evolving nature of the global listed infrastructure market, the Fund may hold securities outside of the above sectors as long as they meet the Fund’s definition of an infrastructure company.
The equity securities in which the Fund may invest include, but are not limited to, common and preferred stock of companies of any size market capitalizations. The foreign securities in which the Fund may invest include, but not limited to, depositary receipts, such as American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”) and Global Depositary Receipts (“GDRs”). The Fund may also invest in initial public offerings (“IPOs”).
The Fund may invest without limit in stapled securities to gain exposure to infrastructure companies in Australia. The value of stapled securities and the income derived from them may fall as well as rise. Stapled securities are not obligations of, deposits in, or guaranteed by, the Fund.
The Fund may invest in real estate investment trusts (“REITs”) and in limited partnerships and master limited partnerships (“MLPs”) listed on a domestic or foreign exchange that meet the Fund’s definition of an infrastructure company.
The Fund may invest in Rule 144A and Regulation S securities. Rule 144A securities are securities offered as exempt from registration with the Securities and Exchange Commission (“SEC”) but are typically treated as liquid securities because there is a market for such securities. Regulation S securities are securities of U.S. and non-U.S. issuers that are issued through private offerings without registration with the SEC pursuant to Regulation S under the Securities Act of 1933, as amended.
The Fund’s investment strategy is based on active, bottom-up stock selection which seeks to identify mispricing. The strategy seeks to minimize risk through on-the-ground research, a focus on quality, and sensible portfolio construction. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund invests significantly (ordinarily at least 40% — unless market conditions are not deemed favorable by the Fund’s sub-adviser, in which case the Fund would invest at least 30%) in non-U.S. infrastructure companies. | ||||||||||||||||||||||||||||||
| JNL/FRANKLIN TEMPLETON INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund invests in a diversified portfolio of debt and equity securities. The Fund has significant ability to invest in a broad range of investments and may shift its investments from one asset class to another based on the Sub-Adviser’s analysis of the best opportunities for the Fund’s portfolio in a given market. The equity securities in which the Fund invests consist of common stock, including those with dividend yields the Sub-Adviser believes are attractive, convertible securities and equity-linked notes (ELNs). Debt securities include all varieties of fixed, floating and variable rate instruments, including secured and unsecured bonds, bonds convertible into common stock, senior floating rate and term loans, mortgage-backed securities and other asset-backed securities, debentures, and shorter term instruments. Bond investments may include U.S. and foreign corporate debt, U.S. Treasuries and foreign government bonds. Under normal market conditions, the Fund currently expects to invest between 20% to 30% of its total assets in debt securities that are rated below investment grade (also known as “high-yield” or “junk” bonds), but may invest up to 35% of its assets in such securities, including a portion in defaulted securities, although the Fund will not invest more than 5% of its assets in securities that are defaulted at the time of purchase. The Fund maintains the flexibility to invest in securities of companies from a variety of sectors, but from time to time, based on economic conditions, the Fund may have significant investments in particular sectors, particularly healthcare, financials and industrials. The Fund may also invest up to 25% of its assets in foreign securities, either directly or through depositary receipts. The Fund may lend its securities to increase its income.
The Fund regularly uses a variety of equity-related derivatives and complex equity securities, which may include purchasing or selling call and put options on equity securities and equity security indices, futures on equity securities and equity indices and options on equity index futures and equity-linked notes, for various purposes including enhancing Fund returns, increasing liquidity, gaining exposure to particular instruments in more efficient or less expensive ways and/or hedging risks relating to changes in certain equity markets. In addition, the Fund may, from time to time, use interest rate-related derivatives, including interest rate swaps and interest rate and/or bond futures contracts (including U.S. Treasury futures contracts) for various purposes including enhancing Fund returns, increasing liquidity, gaining exposure to particular instruments in more efficient or less expensive ways and/or hedging risks relating to changes in interest rates. The Fund also may use currency-related derivatives, such as forward foreign currency exchange contracts, currency futures contracts, currency swaps and currency options to hedge (protect) against currency risks, and credit-related derivatives, such as credit default swaps and options on credit default swaps, to hedge (protect) against credit risks. The use of such derivative transactions may allow the Fund to obtain net long or net short exposures to selected markets, interest rates, countries or durations.
The Fund’s Sub-Adviser searches for undervalued or out-of-favor securities it believes offer opportunities for income today and significant growth tomorrow. It generally performs independent analysis of the debt securities being considered for the Fund’s portfolio, rather than relying principally on the ratings assigned by rating organizations. In analyzing both debt and equity securities, the Sub-Adviser considers a variety of factors.
The Fund may invest up to 25% of its net assets in equity-linked notes. Equity-linked notes are hybrid derivative-type instruments that are specially designed to combine the characteristics of one or more reference securities (usually a single stock, a stock index or a basket of stocks (underlying securities)) and a related equity derivative, such as a put or call option, in a single note form. The Fund may also buy and sell exchange-traded funds (“ETFs”) and options on ETFs.
When choosing equity investments for the Fund, the Sub-Adviser applies a “bottom-up,” value oriented, long-term approach, focusing on the market price of a company’s securities relative to the Sub-Adviser’s evaluation of the company’s long-term earnings, asset value and cash flow potential. The Sub-Adviser also considers a company’s price/earnings ratio, profit margins and liquidity value, among other metrics. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund currently expects to invest between 20% to 30% of its total assets in debt securities that are rated below investment grade (also known as “high-yield” or “junk” bonds), but may invest up to 35% of its assets in such securities, including a portion in defaulted securities, although the Fund will not invest more than 5% of its assets in securities that are defaulted at the time of purchase. | ||||||||||||||||||||||||||||||
| JNL/GOLDMAN SACHS 4 FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in stocks of approximately 150 distinct companies included in the S&P 500 Index (“Index”). The Fund implements its objective by using three equally weighted factors: quality, value, and momentum.
Quality Strategy
The quality strategy emphasizes competitive advantage. The competitive advantage sub-portfolio invests in the stock of companies included in the Index that are believed to have superior profitability, as measured by return on invested capital, and trade at relatively attractive valuations. The holdings in this sub-portfolio are selected from all 11 sectors of the economy identified in the Index. Goldman Sachs Asset Management, L.P., the Fund’s sub-adviser (the “Sub-Adviser”), excludes stocks it views as lower quality using the S&P Quality Rankings and excludes stocks with lower S&P Global Ratings Issuer Credit Ratings.
Value Strategies
The value strategies emphasize dividend income & growth and intrinsic value.
The dividend income & growth sub-portfolio invests in the stock of companies included in the Index that have attractive dividend yields and strong capital structures as determined by the Sub-Adviser. The holdings in this sub-portfolio are selected from all 11 sectors of the economy identified in the Index. The Sub-Adviser excludes stocks it views as lower quality using the S&P Quality Rankings and excludes stocks with lower S&P Global Ratings Issuer Credit Ratings.
The intrinsic value sub-portfolio invests in the stock of companies included in the Index that generate strong free cash flows and sell at relatively attractive valuations. With respect to the Financials sector, the model will reference return on equity in lieu of free cash flows. The holdings in this sub-portfolio are selected from all 11 sectors of the economy identified in the Index. The Sub-Adviser excludes stocks it views as lower quality using the S&P Quality Rankings and excludes stocks with lower S&P Global Ratings Issuer Credit Ratings.
Momentum Strategy
The momentum sub-portfolio invests in the stock of companies included in the Index that exhibit high momentum based on the trailing twelve months, excluding the recent one-month. The holdings in this sub-portfolio are selected from all 11 sectors of the economy identified in the Index. The Sub-Adviser excludes stocks it views as lower quality using the S&P Quality Rankings and excludes stocks with lower S&P Global Ratings Issuer Credit Ratings.
Triblend Rebalance
A portion of each of sub-portfolio rebalances on or about the first business day of March, September or December of each year. Additionally, on or about the first business day of December of each year, the Fund rebalances the size of the three factors to ensure equal weighting. The Fund may change the frequency and timing of its scheduled rebalances at its sole discretion. The Fund may apply situational risk exposure constraints beyond the S&P Quality Rankings and S&P Global Ratings Issuer Credit Ratings in response to extraordinary market events. The Sub-Adviser generally uses a buy and hold strategy, executing trades only on or around each stock selection date, when cash flow activity occurs in the Fund and for dividend reinvestment purposes.
The Sub-Adviser incorporates S&P Quality Rankings and S&P Global Ratings Issuer Credit Ratings in the selection process.
S&P Quality Rankings
Growth and stability of earnings and dividends are deemed key elements in establishing earnings and dividend rankings for common stocks. This process also takes into consideration certain adjustments and modifications deemed desirable in establishing such rankings. The final score for each stock is measured against a scoring matrix determined by an internal analysis of the scores of a large and representative sample of stocks. The range of scores in the array of this sample has been aligned with the following ladder of rankings:
S&P Global Ratings Issuer Credit Ratings
S&P Global Ratings Issuer Credit Ratings (also known as credit ratings) express opinions about the ability and willingness of an issuer to meet its financial obligations in full and on time. Credit ratings can also be used to determine the credit quality of an individual debt issue, such a corporate or municipal bond, and the relative likelihood that the issue may default. Credit ratings are not an absolute measure of default probability, since there are future events that cannot be foreseen. Credit ratings are not intended as guarantees of credit quality or as exact measures of the probability that a particular issuer or debt issue will default.
S&P Global Ratings Issuer Credit Ratings opinions are based on analysis by experienced professionals who evaluate and interpret information received from issuers and other available sources to form a considered opinion. S&P Global Ratings analysts obtain information from public reports, as well as from interviews and discussions with the issuer’s management. They use that information and apply their analytical judgment to assess the entity’s financial condition, operation performance, policies and risk management strategies.
The Fund may invest in a combination of exchange-traded funds (“ETFs”) to assist with fund rebalances and to meet redemption or purchase requests.
The Fund may invest in financial futures, a type of derivative, to obtain market exposure consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing in stocks of approximately 150 distinct companies included in the S&P 500 Index (“Index”). | ||||||||||||||||||||||||||||||
| JNL/GQG Emerging Markets Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of emerging market companies.
The equity securities in which the Fund invests are primarily publicly traded common stocks but may also include warrants and preferred stocks. For purposes of the Fund’s 80% investment policy, equity securities also include depositary receipts (including unsponsored depositary receipts and American Depositary Receipts (“ADRs”), European Depositary Receipts (“EDRs”) and Global Depositary Receipts (“GDRs”)), which are certificates typically issued by a bank or trust company that represent ownership interests in securities of non-U.S. companies, and participation notes (“P-Notes”), which are derivative instruments designed to replicate equity exposure in certain foreign markets where direct investment is either impossible or difficult due to local investment restrictions. The Fund may invest in initial public offerings (“IPOs”) and securities of companies with any market capitalization. Certain instruments in which the Fund invests may be illiquid or thinly-traded securities. The Fund may invest in exchange traded funds (“ETFs”), including commodity ETFs that provide exposure to or invest in gold.
The Fund may also invest in A Shares of companies based in the People’s Republic of China (“China”) that trade on the Shanghai Stock Exchange and the Shenzhen Stock Exchange through the Shanghai – Hong Kong and Shenzhen – Hong Kong Stock Connect programs (“Stock Connect”). Stock Connect is a mutual stock market access program designed to, among other things, enable foreign investments in China.
The Fund considers a company to be an emerging market company if: (i) at least 50% of the company’s assets are located in emerging market countries; (ii) at least 50% of the company’s revenue is generated in emerging market countries; (iii) the company is organized, conducts its principal operations, or maintains its principal place of business or principal manufacturing facilities in an emerging market country; (iv) the company’s securities are traded principally in an emerging market country; or (v) GQG Partners LLC (“Sub-Adviser”) otherwise believes that the company’s assets are exposed to the economic fortunes and risks of emerging market countries (because, for example, the Sub-Adviser believes that the company’s growth is dependent on emerging market countries). The Fund considers classifications by the World Bank, the International Finance Corporation, the International Monetary Fund and the Fund’s benchmark index provider in determining whether a country is an emerging market country. Emerging market countries generally include every country in the world except the U.S., Canada, Japan, Australia, New Zealand, and most of the countries in Western Europe. From time to time, the Fund may focus its investments in a particular country or geographic region.
In managing the Fund’s investments, the Sub-Adviser pursues a “growth style” of investing through which it seeks to capture market upside while limiting downside risk through full market cycles by combining a rigorous screening process with fundamental analyses to seek to identify and invest in companies that the Sub-Adviser believes have favorable long-term economic prospects. Specifically, the Sub-Adviser seeks to buy companies that it believes are reasonably priced, have strong fundamental business characteristics, sustainable relative earnings growth and the ability to outperform peers over a full market cycle, and can sustain the value of their securities in a market downturn. The Sub-Adviser may also purchase stocks that do not fall into the traditional “growth” style box. The Sub-Adviser may sell a company if it believes that the company’s long-term competitive advantage or relative earnings growth prospects have deteriorated, or the Sub-Adviser has otherwise lost conviction in the company. The Sub-Adviser also may sell a company if the company has met its price target or is involved in a business combination, if the Sub-Adviser identifies a more attractive investment opportunity, or the Sub-Adviser wishes to reduce the Fund’s exposure to the company or a particular country or geographic region.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of emerging market companies. | ||||||||||||||||||||||||||||||
| JNL/INVESCO SMALL CAP GROWTH FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to meet this objective by investing, normally, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities of small-capitalization companies. The Fund invests primarily in equity securities. The principal type of equity security in which the Fund invests is common stock. The Fund considers a company to be a small-capitalization company if it has a market capitalization, at the time of purchase, no larger than the market capitalization of the largest capitalized company included in the Russell 2000® Index during the most recent 11-month period (based on month-end data) plus the most recent data during the current month. As of December 31, 2025, the market capitalization resulting from this formula was $28.02 billion.
The Fund may also invest up to 25% of its net assets in foreign securities of companies located in developing and emerging markets, i.e., those that are generally in the early stages of their industrial cycles, as well as in developed markets. The Fund may also invest up to 20% of its assets in equity securities of issuers that have market capitalizations in other market capitalization ranges. The Fund may invest up to 15% of its net assets in real estate investment trusts.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to meet this objective by investing, normally, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities of small-capitalization companies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Hedged Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to provide capital appreciation through participation in the broad equity markets while hedging overall market exposure relative to traditional long-only equity strategies. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. The Fund seeks to achieve its investment objective by investing at least 80% of its assets in an “enhanced index,” which primarily consist of common stocks of medium to large capitalization companies in the S&P 500 Index (“Index”). The enhanced index is a portfolio benchmarked to the Index, subject to constraints based on tracking error, individual name holdings, and sector. Because the Fund uses an “enhanced index” strategy, not all of the stocks in the Index, its primary benchmark, are included in the Fund, and the Fund’s position in an individual stock may be overweighted or underweighted when compared to the Index. The Fund will also systematically purchase and sell exchange-traded put options and sell exchange-traded call options, employing an options overlay known as a “put/spread collar” strategy. The options may be based on the Index or on exchange-traded funds (“ETFs”) that replicate the Index (“S&P 500 ETFs”). The combination of the diversified portfolio of equity securities, the downside hedge from long index put options, and the income from the short index call options is intended to provide the Fund with a portion of the returns associated with equity market investments while exposing investors to less risk than traditional long-only equity strategies. Specifically, the Fund seeks to provide a competitive risk-adjusted return over a full market cycle relative to the Index with lower volatility than traditional long-only equity strategies. The “put/spread collar” strategy is designed to provide a continuous market hedge for the portfolio (i.e., to minimize loss).
The Fund’s combination of a diversified equity portfolio, with the “put/spread collar” options overlay strategy is designed to provide greater market protection than other equity investments, but may not always do so, particularly in rising equity markets when the Fund may underperform traditional equity strategies. In addition, as a result of the structure of the options overlay strategy, the Fund is not expected to provide market protection during times of low market volatility; during such periods, the Fund is expected to perform in line with broad equity markets.
The Fund may use derivatives, primarily futures contracts, to gain exposure to indexes or certain securities within indexes, to more effectively gain targeted equity exposure from its cash positions and to hedge the Fund’s portfolio if it is unable to purchase or write the necessary options for its overlay strategy. To the extent the Fund invests in index futures with exposure to securities in the Index, it may have the effect of increasing the Fund’s exposure to a relatively small number of securities, making the Fund more sensitive to the economic results of those securities.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/JPMORGAN MIDCAP GROWTH FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a broad portfolio of common stocks of companies with market capitalizations equal to those within the universe of Russell MidCap Growth Index stocks at the time of purchase. As of December 31, 2025, the market capitalization range for the Russell MidCap Growth Index was $88.9 billion to $1.3 billion.
The Fund may use derivatives to hedge various investments, for risk management and to increase the Fund’s income or gain.
The Fund may also invest up to 20% of its total assets in all types of foreign securities.
The Fund maintains the flexibility to invest in securities of companies from a variety of sectors, but from time to time, based on economic conditions, the Fund may have significant investments in particular sectors.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a broad portfolio of common stocks of companies with market capitalizations equal to those within the universe of Russell MidCap Growth Index stocks at the time of purchase. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Nasdaq Hedged Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to provide capital appreciation through participation in the equity markets while hedging overall market exposure relative to traditional long-only equity strategies. Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of Nasdaq listed companies. The Fund seeks to achieve its investment objective by investing in an actively managed portfolio of equity securities, including securities in the Nasdaq-100 Index® (the “Index”). The Fund can invest in both large cap and mid cap companies. The Fund may also invest in other equity securities not included in the Index. Currently, many of the equity securities in the Fund’s portfolio will be technology companies or companies that rely heavily on technological advances. The Fund will also purchase and sell exchange-traded put options and sell exchange-traded call options, employing an options overlay known as a “put/spread collar” strategy. The options may be based on the Index or on exchange-traded funds (“ETFs”) that replicate the Index (“Nasdaq 100 ETFs”). The combination of the portfolio of equity securities, the downside hedge from long index put options, and the income from the short index call options is intended to provide the Fund with a portion of the returns associated with equity market investments while exposing investors to less risk than traditional long-only equity strategies. Specifically, the Fund seeks to provide a competitive risk-adjusted return over a full market cycle relative to the Index with lower volatility than traditional long-only equity strategies. The “put/spread collar” strategy is designed to provide a continuous market hedge for the portfolio (i.e., to minimize loss).
The Fund’s combination of an equity portfolio, with the “put/spread collar” options overlay strategy is designed to provide greater market protection than other equity investments, but may not always do so, particularly in rising equity markets when the Fund may underperform traditional equity strategies. In addition, as a result of the structure of the options overlay strategy, the Fund is not expected to provide market protection during times of low market volatility; during such periods, the Fund is expected to perform in line with broad equity markets. The Fund may use futures contracts, primarily futures on indices, to more effectively gain targeted equity exposure from its cash positions and to hedge the Fund’s portfolio if it is unable to purchase or write the necessary options for its overlay strategy.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities of Nasdaq listed companies. | ||||||||||||||||||||||||||||||
| JNL/JPMORGAN US GOVERNMENT & QUALITY BOND FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund under normal circumstances invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in U.S. Treasury securities, obligations issued by agencies or instrumentalities of the U.S. Government (which may not be backed by the U.S. Government) and mortgage-backed securities, that are supported either by the full faith and credit of the U.S. Government or their own credit, collateralized mortgage obligations issued by private issuers, and repurchase agreements related to the principal investments. J.P. Morgan Investment Management Inc. (“Sub-Adviser”) actively manages the portfolio’s interest rate exposure, yield curve positioning, sector allocation and security selection. Mortgage-backed securities selections are determined by reference to mathematical models that reflect certain payment assumptions and estimates of future economic factors. The Fund may also invest in high-quality corporate debt securities. All securities in the Fund are investment grade at the time of purchase.
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| Strategy Portfolio Concentration [Text] | The Fund under normal circumstances invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in U.S. Treasury securities, obligations issued by agencies or instrumentalities of the U.S. Government (which may not be backed by the U.S. Government) and mortgage-backed securities, that are supported either by the full faith and credit of the U.S. Government or their own credit, collateralized mortgage obligations issued by private issuers, and repurchase agreements related to the principal investments. | ||||||||||||||||||||||||||||||
| JNL/JPMORGAN U.S. VALUE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of borrowings for investment purposes) in common stocks. J.P. Morgan Investment Management, Inc. (“Sub-Adviser”) applies an active equity management style focused on identifying attractively valued securities given their growth potential over a long-term time horizon. The securities held by the Fund will predominantly be of companies with market capitalizations similar to those within the universe of the Morningstar® US Large-Mid Cap Broad Value Index℠ (“Index”), which includes both large cap and mid cap companies. As of the reconstitution of the Index on December 31, 2025, the market capitalizations of the companies in the Index ranged from $3.781 trillion to $1.309 billion.
The Fund may sell a security for several reasons, including a change in the company’s fundamentals or if the Sub-Adviser believes the security is no longer attractively valued. Investments may also be sold if the Sub-Adviser identifies a stock that it believes offers a better investment opportunity.
While common stocks are the Fund’s primary investment, the Fund may also invest in real estate investment trusts (“REITs”) and depositary receipts. Depositary receipts are financial instruments representing a foreign company’s publicly traded securities. A depositary receipt trades on a stock exchange in a country different from the company’s local market.
Derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may be used as substitutes for securities in which the Fund can invest. To the extent the Fund uses derivatives, the Fund will primarily use futures contracts to more effectively gain targeted equity exposure from its cash positions. |
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its net assets (plus the amount of borrowings for investment purposes) in common stocks. J.P. Morgan Investment Management, Inc. (“Sub-Adviser”) applies an active equity management style focused on identifying attractively valued securities given their growth potential over a long-term time horizon. | ||||||||||||||||||||||||||||||
| JNL/Loomis Sayles Global Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund will invest primarily in equity securities, including common stocks and depositary receipts. The Fund will invest in securities that provide exposure to no fewer than three countries, which will include the U.S. In addition, the Fund will invest at least 30% of its assets in securities of companies that maintain their principal place of business or conduct their principal business activities outside the U.S., companies that have their securities traded on non-U.S. exchanges, or companies that have been formed under the laws of non-U.S. countries.
Notwithstanding the foregoing, to determine if a security is classified as U.S. or non-U.S., Loomis, Sayles & Company, L.P., the Fund’s sub-adviser (“Sub-Adviser”) considers a variety of factors (collectively designed to assess whether an issuer is economically tied to a particular country or region), including but not limited to: the markets in which the issuer’s securities are primarily traded; the location of the issuer’s headquarters, principal offices, or operations; the country where the issuer is organized; the percentage of the issuer’s revenues or profits derived from goods produced or sold, investments made, or services performed in the relevant country; and information provided by third-party data analytics service providers.
The Fund may also invest up to 30% of its assets in emerging markets securities. The Fund considers a security to be an emerging markets security if its “country of risk” is included within the Morningstar® Emerging Markets Index℠. The Fund focuses on stocks of large capitalization companies, but the Fund may invest in companies of any size.
The Fund normally invests across a wide range of sectors and industries. The Sub-Adviser employs a growth style of equity management, which means that the Fund seeks to invest in companies with sustainable competitive advantages versus others, long-term structural growth drivers that will lead to above-average future cash flow growth, attractive cash flow returns on invested capital, and management teams focused on creating long-term value for shareholders. The Sub-Adviser also aims to invest in companies when they trade at a significant discount to the estimate of intrinsic value (i.e. companies with share prices trading significantly below what the portfolio manager believes the share price should be).
The Fund will consider selling a portfolio investment when the Sub-Adviser believes an unfavorable structural change occurs within a given business or the markets in which it operates, a critical underlying investment assumption is flawed, when a more attractive reward-to-risk opportunity becomes available, when the current price fully reflects intrinsic value, or for other investment reasons which the Sub-Adviser deems appropriate.
The Fund may also engage in foreign currency transactions (including foreign currency forwards and foreign currency futures) for hedging purposes, invest in options for hedging and investment purposes and invest in securities issued pursuant to Rule 144A under the Securities Act of 1933 (“Rule 144A securities”). Under normal market conditions, the Sub-Adviser does not intend to hedge currency risk, which may cause the Fund to incur losses that would not have been incurred had the risk been hedged. Except as provided above, the Fund is not limited in the percentage of its assets that it may invest in these instruments.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. |
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund will invest primarily in equity securities, including common stocks and depositary receipts. The Fund will invest in securities that provide exposure to no fewer than three countries, which will include the U.S. In addition, the Fund will invest at least 30% of its assets in securities of companies that maintain their principal place of business or conduct their principal business activities outside the U.S., companies that have their securities traded on non-U.S. exchanges, or companies that have been formed under the laws of non-U.S. countries. | ||||||||||||||||||||||||||||||
| JNL/Lord Abbett Short Duration Income Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] |
The Fund may invest in Treasury Inflation Protected Securities (“TIPS”), which are U.S. Government bonds whose principal automatically is adjusted for inflation as measured by the Consumer Price Index for All Urban Consumers (“CPI-U”), and other inflation-indexed securities issued by the U.S. Department of Treasury. The Fund may invest up to 35% of its net assets in any one or a combination of the following types of fixed income securities and other instruments:
The Fund will not invest more than 25% of its total assets in any industry; however, this limitation does not apply to mortgage-backed securities, privately issued mortgage-related securities, or securities issued by the U.S. Government, its agencies and instrumentalities. The Fund may, and typically does, invest substantially in CMBS, including lower-rated CMBS.
The Fund seeks to manage interest rate risk through its management of the average duration of the securities it holds in its portfolio. Under normal conditions, the Fund will maintain its average dollar-weighted duration range between one and three years. The duration of a security takes into account the pattern of all expected payments of interest and principal on the security over time, including how these payments are affected by changes in interest rates.
The Fund may use derivatives to hedge against risk or to gain investment exposure. Currently, the Fund expects to invest in derivatives consisting principally of futures, forwards, options, and swaps. The Fund may use derivatives to seek to enhance returns, to attempt to hedge some of its investment risk, to manage portfolio duration, as a substitute for holding the underlying asset on which the derivative instrument is based, or for cash management purposes. For example, the Fund may invest in or sell short U.S. Treasury futures, securities index futures, other futures, including commodity futures, and/or currency forwards to adjust the Fund’s exposure to the direction of interest rates, or for other portfolio management reasons.
The Fund’s sub-adviser, Lord, Abbett & Co. LLC (the “Sub-Adviser”), buys and sells securities using a relative value-oriented investment process, meaning the Sub-Adviser generally seeks more investment exposure to securities believed to be undervalued and less investment exposure to securities believed to be overvalued. The Sub-Adviser combines top-down and bottom-up analysis to construct its portfolio, using a blend of quantitative and fundamental research. As part of its top down analysis, the Sub-Adviser evaluates global economic conditions, including monetary, fiscal, and regulatory policy, as well as the political and geopolitical environment, in order to identify and assess opportunities and risks across different segments of the fixed income market. The Sub-Adviser employs bottom-up analysis to identify and select securities for investment by the Fund based on in-depth company, industry, and market research and analysis. The Sub-Adviser may actively rotate sector exposure based on its assessment of relative value. The Fund may engage in active and frequent trading of its portfolio securities.
The Fund may sell a security when the Fund believes the security is less likely to benefit from the current market and economic environment, or shows signs of deteriorating fundamentals, among other reasons. The Fund may deviate from the investment strategy described above for temporary defensive purposes. The Fund may miss certain investment opportunities if defensive strategies are used and thus may not achieve its investment objective. |
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| Strategy Portfolio Concentration [Text] | Under normal conditions, the Fund pursues its investment objective by investing at least 65% of its net assets in investment grade debt securities of various types. | ||||||||||||||||||||||||||||||
| JNL/MELLON EMERGING MARKETS INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] |
The Master Fund seeks to invest under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar® Emerging Markets Target Market Exposure Index℠ (Net) (“Index”), including depositary receipts representing securities of the Index; which may be in the form of American Depositary receipts (“ADRs”), Global Depositary receipts (“GDRs”) and European Depositary receipts (“EDRs”). The Index is a rules-based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Emerging Markets equity markets. Morningstar Indexes classifies Brazil, Chile, Colombia, Mexico, Peru, China, India, Indonesia, South Korea, Malaysia, Philippines, Taiwan, Thailand, Czech Republic, Greece, Hungary, Russia, Turkey, Egypt, Kuwait, Qatar, South Africa, Saudi Arabia, and United Arab Emirates as Emerging Markets. Morningstar Indexes reviews the market classification annually and consecutively updates the list.
There is no specific tilt based on region. While the Index will contain securities from China and Russia, their weights are determined solely in accordance with their float market capitalization. As of December 31, 2025, total percentage weight of securities from China was 29% and that from Russia was 0%.
The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 1,469 constituents and the full market capitalization range was $307 million to $1.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Master Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Master Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Master Fund attempts to replicate the performance of the Index by investing all or substantially all of its assets in the securities that comprise the Index. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
Emerging market issuers may not be subject to accounting, auditing, legal and financial reporting standards comparable to those in developed markets, and emerging markets generally have less diverse and less mature economic structures, as well as less stable political systems, than those of developed countries. Because the Fund seeks to track an index comprised of foreign securities, it may be more susceptible to such risks than a Fund that seeks to track an index comprised of domestic securities.
When attempting to replicate the Index, portfolio turnover is typically limited to what the Index adds and deletes, contract owner contributions and withdrawals, fund of fund purchases and redemptions, and reinvestment income. The Master Fund stays aligned with the Index automatically with the change in share price, due to the close similarity between the holdings of the Index and those of the Master Fund. The Master Fund will rebalance on or about the date that the Index rebalances.
The Master Fund will use to a significant degree derivative instruments, such as options, futures, and options on futures (including those relating to securities, indexes, foreign currencies and interest rates), forward contracts, swaps and hybrid instruments (typically structured notes), as a substitute for investing directly in equities, bonds and currencies in connection with its investment strategy. The Master Fund also may use such derivatives as part of a hedging strategy or for other purposes related to the management of the Master Fund. Derivatives may be entered into on established exchanges or through privately negotiated transactions referred to as over-the-counter derivatives. The Master Fund also may purchase or sell securities on a forward commitment (including “TBA” (to be announced) basis). These transactions involve a commitment by the Master Fund to purchase or sell particular securities with payment and delivery taking place at a future date and permit the Master Fund to lock in a price or yield on a security it owns or intends to purchase, regardless of future changes in interest rates or market conditions.
The Master Fund also may invest in derivative securities to manage cash flows and equitize dividend accruals.
In addition, the Master Fund may also invest in exchange-traded funds (“ETFs”). ETFs may be used in the Master Fund to invest cash until such time as the Master Fund purchases local securities. ETFs may also be used to gain exposure to local markets that may be closed, or that are expensive or difficult to trade in local shares.
The Master Fund may concentrate its investments in an industry or group of industries to the extent that the Index the Master Fund is designed to track is also so concentrated. |
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| Strategy Portfolio Concentration [Text] | The Master Fund seeks to invest under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar® Emerging Markets Target Market Exposure Index℠ (Net) (“Index”), including depositary receipts representing securities of the Index; which may be in the form of American Depositary receipts (“ADRs”), Global Depositary receipts (“GDRs”) and European Depositary receipts (“EDRs”). | ||||||||||||||||||||||||||||||
| JNL/MELLON S&P 500 INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P 500® Index (“Index”) in proportion to their market capitalization weighting in the Index. The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range of the Index is $3.6 billion to $4.6 trillion. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment income. The replicated portfolio does not require rebalancing as a result of market movement. The Fund is managed to reflect the composition of the Index and will rebalance as needed to reflect changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P 500® Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/MELLON S&P 400 MIDCAP INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class I shares of the Master Fund.
The Master Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P MidCap 400® Index (“Index”) in proportion to their market capitalization weighting in the Index. The Master Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Master Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Master Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range of the Index is $1.2 billion to $33.6 billion. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long term.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment of income. The replicated portfolio does not require rebalancing as a result of market movement. It is rebalanced automatically with the change in share prices of the securities owned. The Master Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Master Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests.
The Master Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Master Fund’s objective. The Master Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
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| Strategy Portfolio Concentration [Text] | The Master Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P MidCap 400® Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/MELLON SMALL CAP INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class I shares of the Master Fund.
The Master Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the S&P SmallCap 600® Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index is a quarterly-rebalanced, float-adjusted market cap weighted index comprised of approximately 600 U.S. common equities and REITs that meet the index provider’s criteria for market capitalization, public float, financial viability, liquidity, price reasonableness, and sector representation. The Index may invest across all GICS sectors and may include investments in financial services companies.
The Master Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Master Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Master Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range for the Index was $261.7 million to $9.3 billion.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment of income. The replicated portfolio does not require rebalancing as a result of market movement. It is rebalanced automatically with the change in share prices of the securities owned. The Master Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Master Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests.
The Master Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Master Fund’s objective. The Master Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Master Fund may lend its securities to increase its income.
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| Strategy Portfolio Concentration [Text] | The Master Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the S&P SmallCap 600® Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/MELLON INTERNATIONAL INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class I shares of the Master Fund.
The Master Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Index or derivative securities economically related to the Index. The Master Fund seeks to track the performance and characteristics of the Index, a rules-based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Developed Markets ex-North America equity markets. As of December 31, 2025, the Index included equities listed in Austria, Australia, Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, Great Britain, Hong Kong, Ireland, Israel, Italy, Japan, the Netherlands, Norway, New Zealand, Poland, Portugal, Sweden, Singapore, and the U.S. (non-U.S. entities that are listed in the U.S.).
The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 650 constituents and the full market capitalization range was $463 million to $420 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
To implement this strategy, the Master Fund may invest up to 50% of its net asset value in financial futures, a type of derivative, to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Master Fund’s objective. In addition, the Master Fund may use foreign currency forward contracts, a type of derivative, to maintain the approximate currency exposure of the Index. The Master Fund’s use of financial futures and foreign currency forward contracts is intended to assist replicating the investment performance of the Index.
The Master Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its Index, to assist with Index rebalances, and to meet redemption or purchase requests.
The Master Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Master Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. Indexing may offer a cost-effective approach to gaining diversified market exposure over the long term. The Master Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
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| Strategy Portfolio Concentration [Text] | The Master Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Index or derivative securities economically related to the Index. | ||||||||||||||||||||||||||||||
| JNL/MELLON BOND INDEX FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund operates as a “feeder fund” and seeks to achieve its goal by investing all of its assets in Class I shares of the Master Fund.
The Master Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income securities that seek to track the performance and characteristics of the Bloomberg U.S. Aggregate Index (“Index”) that Mellon Investments Corporation (“Mellon” or “Master Fund’s Sub-Adviser”) believes to be important, such as Option Adjusted Duration, Maturity, Average Quality Rating, Sector/Industries, and Yield to worst. The Index includes Treasuries, government-related credit, mortgage-backed securities (agency fixed-rate pass-throughs), asset-backed securities and commercial mortgage backed securities (agency and non-agency). Research and experience indicate that it is impractical to attempt to fully replicate most broad fixed-income securities market indices. The Index includes thousands of issues, many of which may be illiquid and unavailable in the secondary markets. Additionally, reinvestment of cash flows would be costly in a full replication environment, as it would entail trading many issues in uneven amounts. Given these difficulties, the Master Fund’s Sub-Adviser utilizes a representative sampling approach that combines analysis and the experience and judgment of its investment professionals.
Through the representative sampling approach, the Master Fund’s Sub-Adviser selects what it believes is a representative basket of securities in order to match the important risk characteristics of the Index. Given this fixed income index cannot be fully replicated, the Master fund uses a representative sampling approach to select bonds that match the important risk characteristics of the Index. The Master Fund’s holdings are rebalanced on a monthly basis to reflect changes in the composition of the Index.
The Master Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Master Fund does not employ traditional methods of active investment management, such as actively buying and selling bonds based upon interest rate bets or sector rotation. Indexing may offer a cost-effective approach to gaining diversified market exposure over the long-term.
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| Strategy Portfolio Concentration [Text] | The Master Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income securities that seek to track the performance and characteristics of the Bloomberg U.S. Aggregate Index (“Index”) that Mellon Investments Corporation (“Mellon” or “Master Fund’s Sub-Adviser”) believes to be important, such as Option Adjusted Duration, Maturity, Average Quality Rating, Sector/Industries, and Yield to worst. | ||||||||||||||||||||||||||||||
| JNL/Mellon U.S. Stock Market Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® US Market IndexSM (“Index”). The Index is comprised of stocks of small, medium, and large capitalization. The Index measures the performance of U.S. securities and targets 97% market capitalization coverage of the investable universe. It is a diversified broad market index. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 1,173 constituents and the full market capitalization range was $504 million to $4.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long term. The Fund is managed to reflect the composition of the Index and will rebalance as needed to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may invest in exchange-traded funds (“ETFs”) to assist with Fund rebalances and to meet redemption or purchase requests.
Mellon Investments Corporation, the Fund’s sub-adviser (“Sub-Adviser”), uses a “passive” or “indexing” approach to try to achieve the Fund’s investment objective. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® US Market IndexSM (“Index”). | ||||||||||||||||||||||||||||||
| JNL/Mellon Dow Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the thirty securities which comprise the Dow Jones Industrial Average™ (“DJIA®”), with the weight of each security in the Fund substantially corresponding to the weight of such security in the DJIA®. The thirty securities are adjusted from time to time to conform to periodic changes to the identity and/or relative weightings in the DJIA®. Changes to the DJIA® are made on an as-needed basis. There is no annual or semi-annual reconstitution. However, changes in response to corporate actions and market developments can be made at any time. The DJIA® covers all industries except transportation and utilities.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may invest in securities issued by companies in the financial services sector.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the thirty securities which comprise the Dow Jones Industrial Average™ (“DJIA®”), with the weight of each security in the Fund substantially corresponding to the weight of such security in the DJIA®. | ||||||||||||||||||||||||||||||
| JNL/Mellon World Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar Developed Markets Target Market Exposure (Net) Index (“Index”) or derivative securities economically related to the Index, a rules based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Developed Markets equity markets. Morningstar Indexes classifies Canada, United States, Australia, Hong Kong, Japan, New Zealand, Singapore, Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Norway, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom and Israel as Developed Markets. Morningstar Indexes reviews these classifications annually. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 1,218 constituents and the full market capitalization range was $463 million to $4.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution. The Fund seeks to track the performance and characteristics of the Index. The Fund is managed to reflect the composition of the Index and will rebalance as needed to reflect changes in the composition of the Index.
To implement this strategy, the Fund may invest up to 50% of its net asset value in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index. In addition, the Fund may use foreign currency forward contracts, a type of derivative, to maintain the approximate currency exposure of the Index.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. Indexing may offer a cost-effective approach to gaining diversified market exposure over the long term.
The Fund may obtain exposure to non-U.S. companies through investment in depositary receipts such as American, Global, and European Depositary Receipts (ADRs, GDRs, and EDRs).
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
The Fund may invest in securities issued by companies in the financial services sector.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar Developed Markets Target Market Exposure (Net) Index (“Index”) or derivative securities economically related to the Index, a rules based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Developed Markets equity markets. | ||||||||||||||||||||||||||||||
| JNL/Mellon Nasdaq 100 Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in the securities which comprise the NASDAQ-100® Index™ (“Index”). The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Index in proportion to their market capitalization weighting in the Index.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the securities that make up the Index. The Index includes 100 of the largest non-financial domestic and international companies listed on the Nasdaq Stock Market. The Index reflects companies across high-growth industry groups including computer hardware and software, telecommunications, retail/wholesale trade and biotechnology.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in the securities of non-U.S. issuers.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Index in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Communication Services Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Communication Services Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of U.S. companies that provide communication services using fixed-line networks or those that provide wireless access and services. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 50 constituents and the full market capitalization range was $880 million to $1.8 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may lend its securities to increase its income.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Communication Services Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Consumer Discretionary Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its (net assets plus the amount of any borrowings for investment purposes) assets in the stocks in the Morningstar US Consumer Cyclical Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of retail stores, auto and auto parts manufacturers, companies engaged in residential construction, lodging facilities, restaurants and entertainment companies. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 142 constituents and the full market capitalization range was $968 million to $2.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution. While predominately U.S.-focused, the Index may include securities that are listed on U.S. exchanges but for whom the issuers’ primary risks are considered to be outside the United States.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its (net assets plus the amount of any borrowings for investment purposes) assets in the stocks in the Morningstar US Consumer Cyclical Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Consumers Staples Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Consumer Defensive Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies engaged in the manufacturing of food, beverages, household and personal products, packaging, or tobacco. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 58 constituents and the full market capitalization range was $2.6 billion to $889 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The consumer staples sector currently consists of companies representing food and staples retailing, food, beverage, and tobacco companies, and household and personal products companies. The Fund will concentrate in certain industries in the consumer staples sector to the extent such industries are represented in the Index. The Fund seeks to achieve its objective by utilizing a replication investment approach, called indexing, which attempts to replicate the investment performance of the Index. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that the Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Consumer Defensive Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Energy Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Energy Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of U.S. companies that produce or refine oil and gas, oil field services and equipment companies, and pipeline operators. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 47 constituents and the full market capitalization range was $3.1 billion to $507 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Energy Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Financial Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar US Financial Services Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies that provide financial services, which include banks, savings and loans, asset management companies, credit services, investment brokerage firms, and insurance companies. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 184 constituents and the full market capitalization range was $504 million to $1.1 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
Certain provisions of the Bank Holding Company Act of 1953, as amended, may limit the ability of the Fund to invest in certain securities in excess of certain percentage limitations.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar US Financial Services Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Healthcare Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar US Healthcare Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies of biotechnology, pharmaceuticals, research services, home healthcare, hospitals, long-term care facilities, and medical equipment and supplies. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 132 constituents and the full market capitalization range was $1.5 billion to $965 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar US Healthcare Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Industrials Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Industrials Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies that manufacture machinery, hand-held tools and industrial products. This sector also includes aerospace and defense firms as well as companies engaged in transportation and logistic services. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 195 constituents and the full market capitalization range was $988 million to $327 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund will concentrate in certain industries in the industrials sector to the extent such industries are represented in the Index. The Index measures the performance of the industrials sector of the U.S. equity market. The Fund seeks to achieve its objective by utilizing a replication investment approach, called indexing, which attempts to replicate the investment performance of the Index. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that the Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Industrials Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Information Technology Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Technology Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies engaged in the design, development, and support of computer operating systems and applications. This sector also includes companies that provide computer technology consulting services engaged in the manufacturing of computer equipment, data storage products, networking products, semiconductors, and components. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 196 constituents and the full market capitalization range was $2.2 billion to $4.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that a Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, consistent with the Fund’s investment objective and strategies, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the Morningstar US Technology Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Materials Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Basic Materials Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of companies that manufacturer chemicals, building materials and paper products. This sector also includes companies engaged in commodities exploration and processing. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 44 constituents and the full market capitalization range was $3.6 billion to $201 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution. While predominately U.S.-focused, the Index may include securities that are listed on U.S. exchanges but for whom the issuers’ primary risks are considered to be outside the United States.
The Fund will concentrate in certain industries in the materials sector to the extent such industries are represented in the Index. The Index measures the performance of the materials sector of the U.S. equity market. The Fund seeks to achieve its objective by utilizing a replication investment approach, called indexing, which attempts to replicate the investment performance of the Index. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that the Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified. |
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Basic Materials Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/Mellon Real Estate Sector Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Real Estate Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of mortgage companies, property management companies and REITs in the United States. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 76 constituents and the full market capitalization range was $3.3 billion to $127 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund will concentrate in certain industries in the real estate sector to the extent such industries are represented in the Index. The Fund seeks to achieve its objective by utilizing a replication investment approach, called indexing, which attempts to replicate the investment performance of the Index. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that the Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified. |
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Real Estate Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL S&P 500 Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P 500® Index (“Index”) in proportion to their market capitalization weighting in the Index. The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range of the Index is $3.6 billion to $4.6 trillion. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment of income. The replicated portfolio does not require rebalancing as a result of market movement. The Fund is managed to reflect the composition of the Index and will rebalance as needed to reflect changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its Index, to assist with Index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index. The Fund may hold up to 25% of its value in Index futures contracts.
The Fund may invest in securities issued by companies in the financial services sector.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P 500® Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/MELLON UTILITIES SECTOR FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Utilities Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index measures the performance of electric, gas, and water utilities. The Index is float market capitalization weighted. The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and effective the following Monday. As of December 31, 2025, the Index had 49 constituents and the full market capitalization range was $1.1 billion to $167 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund will concentrate in certain industries in the utilities sector to the extent such industries are represented in the Index. The Index measures the performance of the utilities sector of the U.S. equity market. The Fund seeks to achieve its objective by utilizing a replication investment approach, called indexing, which attempts to replicate the investment performance of the Index. Indexing may offer a cost-effective investment approach to gaining sector exposure over the long term. Indexing may eliminate the chance that the Fund will outperform the Index, but also may reduce some of the risk of active management, such as poor security selection.
The Fund’s ability to achieve significant correlation with the performance of the Index may be affected by changes in shareholder flows, securities markets and changes in the composition of the Index.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Morningstar US Utilities Index (“Index”) in proportion to their market capitalization weighting in the Index. | ||||||||||||||||||||||||||||||
| JNL/MFS Equity Income Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. Equity securities include common stocks, depositary receipts, equity interests in real estate investment trusts (REITs), and other securities that represent an ownership interest (or right to acquire an ownership interest) in a company or other issuer.
The Fund invests primarily in securities that Massachusetts Financial Services Company (d/b/a MFS Investment Management) (“MFS” or “Sub-Adviser”) believes are income-producing equity securities. MFS invests the majority of the Fund’s assets in dividend-paying common stocks, but may invest the Fund’s assets in other types of income-producing securities, including convertible securities, preferred stocks, and equity interests in REITs, and may also invest the Fund’s assets in non-income-producing equity securities.
The Sub-Adviser may invest the Fund’s assets in foreign securities.
In selecting investments, MFS is not constrained by any particular investment style. MFS may invest the Fund’s assets in the stocks of companies it believes to have above average earnings growth potential compared to other companies (growth companies), in the stocks of companies it believes are undervalued compared to their perceived worth (value companies), or in a combination of growth and value companies.
While MFS may invest the Fund’s assets in securities of companies of any size, MFS primarily invests in securities of companies with large capitalizations.
MFS normally invests the Fund’s assets across different industries and sectors, but MFS may invest a significant percentage of the Fund’s assets in issuers in a single industry or sector.
MFS uses an active bottom-up approach to buying and selling investments for the Fund. Investments are selected primarily based on blending fundamental and quantitative research. MFS uses fundamental analysis of individual issuers to determine a fundamental rating for an issuer. MFS uses quantitative analysis to determine a quantitative rating for an issuer. MFS combines the fundamental rating with the quantitative rating to create a blended rating for an issuer. When the fundamental rating is not available, MFS treats the issuer as having a neutral fundamental rating. MFS then constructs the portfolio using a portfolio optimization process that considers the blended rating, as well as issuer, industry, and sector weightings, market capitalization, measures of expected volatility of the Fund’s return (e.g., predicted beta and predicted tracking error), and other factors. MFS has the discretion to adjust the inputs and parameters used in the optimization process and the Fund’s portfolio holdings based on factors such as the desired portfolio characteristics and MFS’ qualitative assessment of the optimization results.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/MFS MID CAP VALUE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to meet its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in issuers with medium market capitalizations.
Massachusetts Financial Services Company (“Sub-Adviser” or “MFS”) generally defines medium market capitalization issuers as issuers with market capitalizations similar to those of issuers included in the Russell Midcap® Value Index over the last 13 months at the time of purchase. As of December 31, 2025, the range of market capitalizations of the Russell Midcap® Value Index was between approximately $1.31 billion and $101.87 billion.
MFS normally invests the Fund’s assets primarily in equity securities. Equity securities include common stocks, depositary receipts, equity interests in real estate investment trusts (“REITs”), and other securities that represent an ownership interest (or right to acquire an ownership interest) in a company or other issuer.
MFS focuses on investing the Fund’s assets in the stocks of companies that it believes are undervalued compared to their perceived worth (value companies).
MFS may invest the Fund’s assets in foreign securities.
MFS normally invests the Fund’s assets across different industries and sectors, but MFS may invest a significant percentage of the Fund’s assets in issuers in a single industry or sector.
MFS uses an active bottom-up investment approach to buying and selling investments for the Fund. Investments are selected primarily based on fundamental analysis of individual issuers. Quantitative screening tools that systematically evaluate an issuer may also be considered.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to meet its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in issuers with medium market capitalizations. | ||||||||||||||||||||||||||||||
| JNL/Morningstar SMID Moat Focus Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® US Small-Mid Cap Moat Focus Index℠ (“Index”). The Index is comprised of small- and medium-capitalization companies as defined by Morningstar, Inc. (the "Index provider''), that the Index Provider determines have sustainable competitive advantages based on a proprietary methodology that considers quantitative and qualitative factors ("wide and narrow moat companies"). The quantitative factors used by the Index Provider to identify competitive advantages currently include historical and projected returns on invested capital relative to cost of capital. The qualitative factors used by the Index Provider to identify competitive advantages currently include customer switching cost (i.e., the costs of customers switching to competitors), internal cost advantages, intangible assets (e.g., intellectual property and brands), network effects (i.e., whether products or services become more valuable as the number of customers grows) and efficient scale (i.e., whether the company effectively serves a limited market that potential rivals have little incentive to enter into).
Wide moat companies are those that the Index Provider believes will maintain their competitive advantage(s) for at least 20 years. Narrow moat companies are those that the Index Provider believes will maintain their competitive advantage(s) for at least 10 years. Wide and narrow moat companies are selected from the universe of companies represented in the Morningstar® US Small-Mid Cap Index℠ (the "Parent Index"), a broad market index representing small- and medium-capitalization U.S. companies. For purposes of the Parent Index, the Index Provider considers those companies in the bottom 70%-90% of total U.S. market cap to be medium-capitalization companies and those companies in the bottom 90%-97% to be small-capitalization companies.
The Index targets a select group of equity securities of wide and narrow moat companies, which are those companies that, according to the Index Provider's equity research team (“Morningstar Research”), are attractively priced based on predefined factors as of each index review. A momentum signal is used to exclude 20% of the wide and narrow moat stocks in the Parent Index with the worst 12-month momentum based on the 12-month total return of each stock. Out of the companies in the Parent Index that Morningstar Research determines are wide or narrow moat companies and display 12-month momentum in the top 80%, Morningstar Research selects companies to be included in the Index as determined by the ratio of the issuer's common stock price to Morningstar Research's estimate of fair value. Morningstar Research 's fair value estimates are calculated using standardized, proprietary valuation models.
As of December 31, 2025, the Index included 106 securities of companies with a full market capitalization range of between approximately $4.3 billion and $83 billion and a weighted average full market capitalization of $25.7 billion. These amounts are subject to change. The Index is divided into two sub-portfolios that are reconstituted and rebalanced semi-annually on alternating quarters. Within each sub-portfolio, an equal weight is assigned to all constituents at rebalancing; constituent weights drift due to market movement until the next rebalance when they are reset to an equal weight.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund's use of financial futures is intended to assist in seeking to replicate the investment performance of the Index.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index.
The Fund will concentrate its investments in an industry or group of industries to the extent the Index that the Fund is designed to track is also concentrated. As of December 31, 2025, the consumer discretionary sector represented a significant portion of the Index.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent that the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® US Small-Mid Cap Moat Focus Index℠ (“Index”). | ||||||||||||||||||||||||||||||
| JNL/Morningstar U.S. Sustainability Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund, under normal circumstances, seeks to invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar US Sustainability Index (the “Index”), including depositary receipts representing securities of the Index. The Fund seeks to track the investment results of the Index, which is designed to provide broad U.S. equity market exposure with lower ESG risk. The Index includes large- and mid-capitalization companies and employs a best-in-class stock selection process to reduce exposure to companies with high ESG risk relative to their sector peers, targeting coverage of 50% of the Morningstar US Large-Mid Cap Index (the “parent index”) by float-adjusted market capitalization. Sector constraints are applied to preserve market-like exposure. The Fund’s investments will be concentrated in certain industries to the extent such industries are represented in the Index.
As of December 31, 2025, the Index consisted of 295 constituents identified by Morningstar Indexes (the “Index Provider”) and the full market capitalization range was $2.1 billion to $4.5 trillion. The number of constituents in the Index is subject to the selection and eligibility criteria at the time of reconstitution. The Index is reconstituted semi-annually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday. If Monday is a holiday, reconstitution or rebalancing is effective on the following business day.
The Index Provider defines sustainable investing as an approach that takes into account ESG factors and their impact throughout the investment process.
All constituents within the Index must meet the following criteria in sequence: (i) the security must have a current Sustainalytics ESG Risk Rating and Sustainalytics Controversy Score, (ii) the security’s Controversy Score must be 3 out of 5, or lower, (iii) the security must not have a ‘Severe’ Sustainalytics ESG Risk Rating, and (iv) the company must not derive more than 50% of its revenue from tobacco products, not have any involvement in the production of controversial weapons (land mines, for example) as defined by third-party Sustainalytics Global Compact Compliance Service exclusionary lists, not have any involvement in the manufacturing and sale of firearms to civilian customers, and not have any involvement in the manufacturing and sale of key components of small arms. The Index Provider selects the best-in-class companies in priority order of their Sustainalytics ESG Risk Ratings until they reach 50% coverage by float-adjusted market capitalization of the parent index. The companies with the lowest possible ESG Risk Ratings are selected for the Index, subject to sector weight constraints relative to the parent index.
Sustainalytics’ ESG Risk Ratings are designed to help investors identify and understand financially material ESG risks in their portfolio companies. Sustainalytics’ ESG Risk Ratings measure the degree to which a company’s economic value is driven by the magnitude of a company’s unmanaged ESG risks. Sustainalytics’ ESG Risk Ratings are composed of three building blocks that contribute to a company’s overall rating. These building blocks include Corporate Governance, material ESG issues (“MEIs”), and idiosyncratic ESG issues. To be considered relevant in the ESG Risk Ratings, an issue must have a potentially substantial impact on the economic value of a company and, hence, its financial risk- and return profile from an investment perspective. The ESG Risk Rating is forward looking in the sense that it identifies these issues based on the typical business model and business environment a company is operating in. The final ESG Risk Rating score is calculated as the sum of all unmanaged risk. To determine unmanaged risk, Sustainalytics reviews three building blocks: Corporate Governance, MEIs’, and idiosyncratic ESG issues. Based on their quantitative scores, companies are grouped into one of five risk categories (negligible, low, medium, high, severe) per the chart below. A low score indicates a low level of ESG risk.
Mellon Investments Corporation, the Fund’s sub-adviser (“Sub-Adviser”), does not apply its own ESG screening criteria. The Sub-Adviser relies on the Index Provider to apply its screening criteria to portfolio companies included in the Index.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through full replication or representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon fundamental security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index.
When attempting to replicate an index such as the Index, portfolio turnover is generally reduced to security additions or deletions to the index, contract owner contributions and withdrawals, and reinvestment income. The Fund stays aligned with the benchmark automatically with the change in share price, due to the close similarity between the holdings of the Index and those of the Fund such that the replicated portfolio does not require rebalancing as a result of market movement. The Fund is managed and rebalanced to reflect the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds ("ETFs") and cash to maintain correlation to the Index to assist with the Index rebalances and to meet redemption or purchase requests.
The Fund may invest in financial futures, a type of exchange-traded derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund's use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. From time to time, the Index may become diversified. During those times, the Fund will continue to track the performance of the Index, but the Fund will retain its non-diversified status even if its holdings become diversified.
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| Strategy Portfolio Concentration [Text] | The Fund, under normal circumstances, seeks to invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar US Sustainability Index (the “Index”), including depositary receipts representing securities of the Index. | ||||||||||||||||||||||||||||||
| JNL/Morningstar Wide Moat Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® Wide Moat Focus IndexSM (“Index”). The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index.
The Index is equal weighted and provides exposure to companies with Morningstar Economic Moat Ratings of “Wide” that are trading at the lowest current market price/fair value ratios. Moat ratings and fair value estimates are determined through independent research conducted by the Morningstar Equity Research team (“Morningstar Research”).
Wide-moat companies are those in which Morningstar Research has very high confidence that excess returns will remain for 10 years, with excess returns more likely than not to remain for at least 20 years. An economic moat is a structural feature that allows a firm to sustain excess profits over a long period of time. Morningstar Research defines excess profits as returns on invested capital (ROICs), above their estimate of a firm’s cost of capital, or weighted average cost of capital (WACC). Without a moat, profits are more susceptible to competition. Morningstar Research has identified five sources of economic moats: intangible assets, switching costs, network effect, cost advantage, and efficient scale. To assess the sustainability of excess profits, analysts perform ongoing assessments of what Morningstar Research calls the “moat trend.” A firm’s moat trend is positive in cases where Morningstar Research believes its sources of competitive advantage are growing stronger; stable where they do not anticipate changes to competitive advantages over the next several years; or negative when they see signs of deterioration.
Morningstar Research uses a standardized, proprietary valuation model to assign fair values to potential Index constituents’ common stock. Morningstar’s equity research team estimates the issuer’s future free cash flows and then calculates an enterprise value using weighted average costs of capital as the discount rate. Morningstar Research then assigns each issuer’s common stock a fair value by adjusting the enterprise value to account for net debt and other adjustments.
The Index employs a staggered rebalance methodology and is divided into two sub-portfolios. Each typically contains 40 stocks. However, if securities fall short of the selection and eligibility criteria or if securities are added or deleted as a result of corporate actions after reconstitution, the sub-portfolio can hold more or fewer than 40 companies. In addition, securities that are deleted from the Morningstar® US Market IndexSM after June and December reconstitutions are simultaneously deleted from the Index. One sub-portfolio reconstitutes in December and June, the other in March and September. At each reconstitution, the 40 securities representing the lowest current market price/fair value are selected from the list of eligible securities for the sub-portfolio. A buffer rule is applied to the current Index constituents. Current constituents ranked within the top 150% of the target count in the eligible universe based on current market price/fair value ratio are retained in the Index. The maximum weight of an individual sector in the Index is capped at 10% more than its corresponding weight in the Morningstar® US Market IndexSM at the time of reconstitution, or 40%, whichever is higher. Due to the staggered rebalance methodology, constituents and weightings may vary between sub-portfolios. As a rule, adjustments to one sub-portfolio are performed after the close of business on the third Friday of March and September and adjustments to the other sub-portfolio are performed after the close of business on the third Friday of June and December, and all adjustments are effective on the following Monday. If the Monday is a market holiday, reconstitution and rebalancing occurs on the Tuesday immediately following. In addition to the quarterly staggered reconstitution of sub-portfolio, the sub-portfolios weights are reset to 50% every June and December and distributed among the securities within them in proportion to their weight.
The aggregate portfolio can contain between 40 and 80 constituents.
The Fund intends to hold the same number of securities as the Index. As of December 31, 2025, the Index included 54 securities of companies with a market capitalization range of between approximately $6.7 billion to $4.5 trillion and a weighted average market capitalization of $265.7 billion. These amounts are subject to change.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund's use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may invest in exchange-traded funds (“ETFs”) to assist with Fund rebalances and to meet redemption or purchase requests. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
Mellon Investments Corporation, the Fund’s sub-adviser (“Sub-Adviser”), uses a “passive” or “indexing” approach to try to achieve the Fund’s investment objective. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis.
The Fund will concentrate its investments in an industry or group of industries to the extent the Index that the Fund is designed to track is also concentrated.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the securities in the Morningstar® Wide Moat Focus IndexSM (“Index”). | ||||||||||||||||||||||||||||||
| JNL/Neuberger Berman Commodity Strategy Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its goal by investing under normal circumstances in commodity-linked derivative instruments and fixed-income instruments. Commodities are assets that have tangible properties, such as oil, natural gas, agricultural products or metals.
The Fund seeks to gain long and short exposure to the commodity markets by investing, directly or indirectly, in futures contracts on individual commodities and other commodity-linked derivative instruments. The performance of these commodity-linked derivative instruments is expected to correspond to the performance of the commodity underlying the derivative instrument, without requiring the Fund to invest directly in commodities.
Companies with similar characteristics may be grouped together in broad categories called sectors. Because the Fund may allocate relatively more assets to certain sectors than others, the Fund’s performance may be more susceptible to any developments which affect those sectors emphasized by the Fund.
Fund assets not invested in commodity-linked derivative instruments will be invested in fixed income securities, cash or cash equivalent instruments, or money market mutual funds.
The Fund may hold commodity-linked derivative instruments that provide leveraged exposure to commodities so that the Fund’s investment exposure to commodities (through their use of commodity-linked derivative instruments) may, at times, equal or slightly exceed the Fund’s net assets.
In managing the Fund’s commodity investments, the Fund’s sub-adviser, Neuberger Berman Investment Advisers LLC (the “Sub-Adviser”) seeks to identify investment opportunities using quantitative investment models and fundamental analyses with an emphasis on risk management in an attempt to take advantage of both short-term and long-term opportunities in commodity markets. By managing a broadly diversified portfolio of commodity investments with an active investment approach, the Sub-Adviser seeks to provide returns that are not highly correlated with other major asset classes. The Fund may take short positions in one or more separate commodities. The short positions used by the Fund primarily involve buying a derivative on a commodity in anticipation that the price of the commodity will decline.
The Sub-Adviser will use various quantitative models employing strategies intended to identify investment opportunities and determine portfolio weightings in different commodity sectors and markets. These strategies include: (i) a risk-balancing strategy that considers the total portfolio risk the Sub-Adviser believes to be associated with each commodity; (ii) a strategy that endeavors to assess top down macro variables among various commodity sectors (such as, energy, industrial, metals, including industrial metals, precious metals, and strategic metals (e.g. uranium), agricultural, livestock and softs (e.g., sugar, cotton, cocoa and coffee)); and/or (iii) a strategy that endeavors to assess the outlook for individual commodities within each commodity sector.
From time to time, the Fund’s investment program may emphasize a particular sector of the commodities markets. If the Fund emphasizes one or more sectors, the performance of investments in the Fund will likely be affected by events affecting the performance of those sectors.
The Fund’s fixed income investments will be mainly in investment grade fixed income securities and are intended to provide liquidity and preserve capital and may serve as collateral for the Fund’s derivative instruments. These may include fixed income securities issued by the U.S. Government and its agencies and instrumentalities, bank certificates of deposit, mortgage backed securities, asset-backed securities, and corporate securities. The Fund considers fixed income securities to be investment grade if, at the time of investment, they are rated within the four highest categories by at least one independent credit rating agency or, if unrated, are determined by the Sub-Adviser to be of comparable quality.
The Fund may invest in cash or cash equivalent instruments. Because the Fund will use derivatives to gain exposure to commodities and because derivatives may not require the Fund to deposit the full notional amount of the investment, the Fund may invest a significant amount of its assets in money market mutual funds or other fixed income instruments, as described above. The Fund’s use of commodity-linked derivative instruments to obtain long and short exposure to the commodity markets may result in leverage, which amplifies the risks that are associated with the commodities underlying the derivative instruments. The Fund’s aggregate investment exposure, as measured on a notional basis, may be greater than 100% of the Fund’s total assets from time to time.
Although the Fund invests primarily in domestic securities and other instruments, it may also invest in foreign securities and other foreign instruments which may be denominated in any currency.
In an effort to achieve its goal, the Fund may engage in active and frequent trading.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its goal by investing under normal circumstances in commodity-linked derivative instruments and fixed-income instruments. | ||||||||||||||||||||||||||||||
| JNL/Neuberger Berman Gold Plus Strategy Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal conditions, the Fund will primarily invest in gold futures contracts that provide investment exposure to gold and in fixed-income instruments. The Fund may also invest in exchange-traded funds (“ETFs”) that provide investment exposure to physical gold. The Fund concentrates its investments in the metals and mining industry and therefore invests 25% or more of its total assets in such industry. The Fund may also invest in derivatives and ETFs that provide investment exposure to precious metals, including, but not limited to, silver, platinum, and palladium.
Because gold is a commodity, the Fund seeks to gain long exposure to the commodity markets by investing, directly or indirectly, in futures contracts on individual commodities and other commodity-linked derivative instruments. The performance of these commodity-linked derivative instruments is expected to correspond to the performance of the commodity underlying the derivative instrument, without requiring the Fund to invest directly in commodities. For purposes of calculating the Fund’s exposure to gold, the Fund’s investments in gold futures contracts are based on the notional value.
Fund assets not invested in commodity-linked derivative instruments, other commodity-related instruments, or exchange-traded funds that provide investment exposure to commodities will be invested in fixed income securities, cash or cash equivalent instruments, or money market mutual funds.
The Fund may hold commodity-linked derivative instruments that provide leveraged exposure to commodities so that the Fund’s investment exposure to commodities (through their use of commodity-linked derivative instruments) may, at times, equal or slightly exceed the Fund’s net assets.
In managing the Fund’s commodity investments, the Fund’s sub-adviser, Neuberger Berman Investment Advisers LLC (the “Sub-Adviser”) primarily seeks exposure to the gold commodity. The Sub-Adviser will also incorporate a marginal mix of investments with exposures to precious metal commodities and bitcoin futures to seek to diversify the Fund’s investment exposure. To gain exposure to gold and other precious metals commodities, the Fund will invest in futures contracts that are typically within 1 year to expiration. To gain exposure to bitcoin, the Fund may invest in cash-settled bitcoin futures contracts traded on the Chicago Mercantile Exchange (“CME”) that are typically within 1 year to expiration. The Fund may also invest in physical bitcoin exchange-traded funds (“ETFs”) to gain exposure to bitcoin.
The Fund will not directly invest in bitcoin or other cryptocurrencies, but may invest in bitcoin through ETFs as described in this paragraph. The Fund may invest up to 5% of its total assets in assets linked to bitcoin, which are either physical bitcoin ETFs or cash-settled bitcoin futures traded on the CME, which is a futures exchange registered with the Commodity Futures Trading Commission (“CFTC”). Bitcoin is a digital currency, which is a means of payment that exists in a purely electronic form and is accounted for and transferred using online systems. Due to market appreciation or other fluctuations in the Fund’s net asset level, the Fund’s investments in cash-settled bitcoin futures traded on the CME as well as physical bitcoin ETFs may be rebalanced on a monthly basis.
The Fund’s fixed income investments will be mainly in investment grade fixed income securities and are intended to provide liquidity and limit downside risk to capital and may serve as collateral for the Fund’s derivative instruments. These may include fixed income securities issued by the U.S. Government and its agencies and instrumentalities, bank certificates of deposit, mortgage-backed securities, asset-backed securities, and corporate securities. The Fund considers fixed income securities to be investment grade if, at the time of investment, they are rated within the four highest categories by at least one independent credit rating agency or, if unrated, are determined by the Sub-Adviser to be of comparable quality.
The Fund may invest in cash or cash equivalent instruments. Because the Fund will use derivatives to gain exposure to gold and other precious metals, as well as cash-settled bitcoin futures traded on the CME, and because derivatives may not require the Fund to deposit the full notional amount of the investment, the Fund may invest a significant amount of its assets in money market mutual funds or other fixed income instruments, as described above. The Fund’s use of commodity-linked derivative instruments to obtain long exposure to the commodity markets may result in leverage, which amplifies the risks that are associated with the commodities underlying the derivative instruments. The Fund’s aggregate investment exposure, as measured on a notional basis, may be greater than 100% of the Fund’s total assets from time to time.
Although the Fund invests primarily in domestic securities and other instruments, it may also invest in foreign securities and other instruments.
In an effort to achieve its goal, the Fund may engage in active and frequent trading.
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| Strategy Portfolio Concentration [Text] | Under normal conditions, the Fund will primarily invest in gold futures contracts that provide investment exposure to gold and in fixed-income instruments. | ||||||||||||||||||||||||||||||
| JNL/NEUBERGER BERMAN STRATEGIC INCOME FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | To pursue its investment objective, the Fund invests primarily in a diversified mix of fixed rate and floating rate debt securities. The Fund’s investments may include securities issued by domestic and foreign governments, corporate entities, and trust structures. The Fund may invest in a broad array of securities, including: securities issued or guaranteed as to principal or interest by the U.S. Government or any of its agencies or instrumentalities; corporate bonds; commercial paper; currencies and non-U.S. securities; mortgage-backed securities and other asset-backed securities; and loans. Securities in which the Fund may invest may be structured as fixed rate debt; floating rate debt; and debt that may not pay interest at the time of issuance.
While the Fund may invest in debt securities across the credit spectrum, including investment grade securities, below investment grade securities (“high yield bonds,” commonly called “junk bonds”) and unrated securities, under normal market conditions the Fund seeks to maintain a portfolio with an average credit quality of investment grade. The Fund may invest without limit in below investment grade securities. The Fund considers debt securities to be below investment grade if, at the time of investment, they are rated below the four highest categories by at least one independent credit rating agency or, if unrated, are deemed by Neuberger Berman Investment Advisers LLC, the Fund's sub-adviser (“Sub-Adviser”) to be of comparable quality. The Fund does not normally invest in or continue to hold securities that are in default or have defaulted with respect to the payment of interest or repayment of principal, but may do so depending on market conditions. The Fund may invest in securities whose ratings imply an imminent risk of default with respect to such payments.
The Fund may also invest without limit in derivative instruments as a means of hedging risk and/or for investment purposes, which may include altering the Fund’s exposure to interest rates, sectors and individual issuers. These derivative instruments may include, but are not limited to, futures, including commodity futures, forward foreign currency contracts, and swaps, such as total return swaps, credit default swaps and interest rate swaps.
The Fund may also invest without limit in foreign securities, but normally will not invest more than 50% of its total assets at the time of investment in obligations of issuers in emerging market countries. The Fund considers emerging market countries to be countries included in the JPMorgan Emerging Markets Bond Index - Global Diversified, the JPMorgan Corporate Emerging Markets Bond Index - Diversified, the JPMorgan Emerging Local Markets Index or the JPMorgan Government Bond Index - Emerging Markets Global Diversified, as well as those countries which are not defined as a High Income Organization for Economic Cooperation and Development (OECD) member country by the World Bank.
Additionally, the Fund may invest in tender option bonds (which include inverse floaters created as part of tender option bond transactions), convertible securities, restricted securities, and preferred securities. The Fund may also engage in when-issued and forward-settling securities (such as to-be-announced (“TBA”) mortgage-backed securities), which involve a commitment by the Fund to purchase securities that will be issued or settled at a later date. The Fund may enter into a TBA agreement and “roll over” such agreement prior to the settlement date by selling the obligation to purchase the securities set forth in the agreement and entering into a new TBA agreement for future delivery of pools of mortgage-backed securities. The Fund may also hold short-term securities including cash equivalents and other debt obligations.
The Fund may invest in debt securities of any maturity and while the Fund does not have a target average duration, under normal market conditions the Sub-Adviser anticipates that the Fund’s average duration will be between two and eight years.
In an effort to achieve its investment objective, the Fund may engage in active and frequent trading.
The Fund has the ability to invest in other investment companies, such as exchange-traded funds, money market funds, unit investment trusts, and open-end and closed-end funds, including affiliated investment companies.
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| Strategy Portfolio Concentration [Text] | To pursue its investment objective, the Fund invests primarily in a diversified mix of fixed rate and floating rate debt securities. | ||||||||||||||||||||||||||||||
| JNL/Newton Equity Income Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. The Fund seeks to focus on dividend-paying stocks and other investments and investment techniques that provide income, including covered call strategies. Newton Investment Management North America, LLC, the Fund’s sub-adviser (the “Sub-Adviser”), chooses stocks through a disciplined investment process that combines computer modeling techniques, fundamental analysis, and risk management. The Fund will emphasize those stocks with value characteristics, although it also may purchase growth stocks. The Sub-Adviser’s investment process is designed to provide investors with investment exposure to sector weightings and risk characteristics generally similar to those of the S&P 500 Value Index.
The Fund’s equity investments may include common stocks, preferred stocks, convertible securities, and American Depositary Receipts (“ADRs”), including those purchased in initial public offerings. The Fund may also invest in fixed income securities and money market instruments.
The Fund may, but is not required to, use derivatives, such as options, futures, and options on futures (including those relating to stocks, indices, and interest rates), as a substitute for investing directly in an underlying asset, to increase returns or income, or as a part of a hedging strategy.
The Fund may invest in securities issued by companies in the financial services sector.
The Fund primarily invests in securities of U.S. companies and does not currently intend to invest more than 15% in foreign securities.
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund invests at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/PIMCO Income Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objectives by investing, under normal circumstances, at least 65% of its total assets in a multi-sector portfolio of Fixed-Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. “Fixed-Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. The Fund may also invest in contingent convertible securities. The Fund will seek to maintain a high and consistent level of dividend income by investing in a broad array of fixed-income sectors and utilizing income efficient implementation strategies. The capital appreciation sought by the Fund generally arises from decreases in interest rates or improving credit fundamentals for a particular sector or security.
The Fund will generally allocate its assets among several investment sectors, without limitation, which may include: (i) high yield securities (“junk bonds”) and investment grade corporate bonds of issuers located in the United States and non-U.S. countries, including emerging market countries; (ii) fixed-income securities issued by U.S. and non-U.S. governments (including emerging market governments), their agencies and instrumentalities; (iii) mortgage-related and other asset backed securities; and (iv) foreign currencies, including those of emerging market countries. However, the Fund is not required to gain exposure to any one investment sector, and the Fund’s exposure to any one investment sector will vary over time. The average portfolio duration of this Fund normally varies from zero to eight years based on Pacific Investment Management Company LLC’s (“PIMCO”) forecast for interest rates. Duration is a measure used to determine the sensitivity of a security’s price to changes in interest rates. The longer a security’s duration, the more sensitive it will be to changes in interest rates.
The Fund may invest up to 50% of its total assets in high yield securities rated below investment grade by Moody’s Investors Service, Inc. (“Moody’s”), or equivalently rated by S&P Global Ratings (“S&P”) or Fitch, Inc. (“Fitch”), or if unrated, determined by PIMCO to be of comparable quality (except such 50% limitation shall not apply to the Fund’s investments in mortgage- and asset-backed securities). In addition, the Fund may invest, without limitation, in securities denominated in foreign currencies. The Fund may invest up to 20% of its total assets in securities and instruments that are economically tied to emerging market countries (this limitation does not apply to investment grade sovereign debt denominated in the local currency with less than 1 year remaining to maturity, which means the Fund may invest in such instruments without limitation subject to any applicable legal or regulatory limitation). The Fund will normally limit its foreign currency exposure (from non-U.S. dollar denominated securities or currencies) to 20% of its total assets.
The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts, including commodity futures, or swap agreements, or in mortgage- or asset backed securities, subject to applicable law and any other restrictions described in the Fund’s prospectus or Statement of Additional Information.
The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred securities.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objectives by investing, under normal circumstances, at least 65% of its total assets in a multi-sector portfolio of Fixed-Income Instruments of varying maturities, which may be represented by forwards or derivatives such as options, futures contracts or swap agreements. | ||||||||||||||||||||||||||||||
| JNL/PIMCO Investment Grade Credit Bond Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of investment grade fixed income securities of varying maturities, which may be represented by forwards, repurchase agreements, reverse repurchase agreements or loan participations and assignments or derivatives such as options, futures contracts or swap agreements. Assets not invested in investment grade corporate fixed income securities may be invested in other types of Fixed Income Instruments. “Fixed Income Instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public-or private-sector entities. The Fund may also invest in contingent convertible securities. The average portfolio duration of this Fund normally varies within two years (plus or minus) of the duration of the Bloomberg U.S. Credit Index, as calculated by Pacific Investment Management Company LLC, the Fund’s sub-adviser (the “Sub-Adviser”). Duration is a measure of the expected life of a fixed income security that is used to determine the sensitivity of a security’s price to changes in interest rates.
The Fund invests primarily in investment grade debt securities, but may invest up to 15% of its total assets in high yield securities (“junk bonds”), as rated Moody's Investors Service, Inc. ("Moody's"), Standard and Poor's Ratings Services ("S&P") or Fitch, Inc. ("Fitch"), or, if unrated, determined by the Sub-Adviser to be of comparable quality. The Fund may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar-denominated securities of foreign issuers. The Fund may invest up to 30% of its total assets in securities and instruments that are economically tied to emerging market countries. The Fund will normally limit its foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) to 20% of its total assets.
The Fund may invest, without limitation, in derivative instruments, such as options, futures contracts, including commodity futures, or swap agreements, or in mortgage-or asset-backed securities, subject to applicable law and any other restrictions described in the Fund’s Prospectus or Statement of Additional Information (“SAI”). The Fund may purchase or sell securities on a when-issued, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buy backs or dollar rolls). The “total return” sought by the Fund consists of income earned on the Fund’s investments, plus capital appreciation, if any, which generally arises from decreases in interest rates, foreign currency appreciation, or improving credit fundamentals for a particular sector or security. The Fund may also invest up to 10% of its total assets in preferred securities.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of investment grade fixed income securities of varying maturities, which may be represented by forwards, repurchase agreements, reverse repurchase agreements or loan participations and assignments or derivatives such as options, futures contracts or swap agreements. | ||||||||||||||||||||||||||||||
| JNL/PIMCO REAL RETURN FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks its investment objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. Assets not invested in inflation-indexed bonds may be invested in other types of fixed-income instruments. “Fixed-income instruments” include bonds, debt securities and other similar instruments issued by various U.S. and non-U.S. public- or private-sector entities. Inflation-indexed bonds are fixed-income securities that are structured to provide protection against inflation. The value of the bond’s principal or the interest income paid on the bond is adjusted to track changes in an official inflation measure. The U.S. Treasury uses the Consumer Price Index for All Urban Consumers (“CPI-U”) as the inflation measure. Inflation-indexed bonds issued by a foreign government are generally adjusted to reflect a comparable inflation index, calculated by that government. “Real return” equals total return less the estimated rate of inflation, which is typically measured by the change in an official inflation measure, such as CPI-U. The average portfolio duration of this Fund normally varies within three years (plus or minus) of the duration of the Bloomberg U.S. Treasury: U.S. TIPS Index, as calculated by Pacific Investment Management Company LLC (“PIMCO”). For these purposes, in calculating the Fund’s average portfolio duration, PIMCO includes the real duration of the inflation-indexed portfolio.
The Fund invests primarily in investment grade securities, but may invest up to 10% of its total assets in high yield securities (“junk bonds”) rated B or higher by Moody's or equivalently rated by S&P Global Ratings or Fitch Inc., or, if unrated, determined by PIMCO to be of comparable quality (except that within such 10% limitation, the Fund may invest in mortgage-related securities rated below B). The Fund also may invest up to 30% of its total assets in securities denominated in foreign currencies, and may invest beyond this limit in U.S. dollar denominated securities of foreign issuers. The Fund may invest up to 15% of its total assets in securities and instruments that are economically tied to emerging market countries. Foreign currency exposure (from non-U.S. dollar-denominated securities or currencies) normally will be limited to 20% of the Fund’s total assets.
The Fund may invest all of its assets in derivative instruments, such as futures, including commodity futures, options, or swap agreements, or in mortgage or asset-backed securities. The Fund may purchase or sell securities on a when-issued basis, delayed delivery or forward commitment basis and may engage in short sales. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into a series of purchase and sale contracts or by using other investment techniques (such as buybacks or dollar rolls). The Fund may also invest up to 10% of its total assets in preferred securities.
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| Strategy Portfolio Concentration [Text] | The Fund seeks its investment objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in inflation-indexed bonds of varying maturities issued by the U.S. and non-U.S. governments, their agencies or instrumentalities, and corporations, which may be represented by forwards or derivatives such as options, futures contracts, or swap agreements. | ||||||||||||||||||||||||||||||
| JNL/PPM America Emerging Markets Debt Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of emerging market debt instruments. Emerging markets countries are generally considered to be countries with developing economies or markets and may include any country recognized to be an emerging markets country by the International Monetary Fund, MSCI, Inc. or Standard & Poor’s Corporation or recognized to be a developing country by the United Nations.
The Fund may invest in a broad range of debt instruments, including sovereign debt, corporate bonds, quasi-sovereign securities and supranational debt. The Fund’s investments in debt instruments may also include, but are not limited to fixed and floating-rate debt, government securities, corporate debt, mortgage-backed securities, commercial mortgage-backed securities, asset-backed securities and may be denominated in U.S. dollars or local currencies. The Fund may also invest without limitation, in debt instruments of varying maturities and of any credit quality, including securities rated below investment grade (sometimes referred to as “high yield” securities or “junk bonds” and which includes defaulted securities). Below investment grade securities are those securities that are rated below investment grade (i.e., rated below BBB- or Baa3) by at least one major credit rating agency or, if not rated by any credit rating agency, deemed to be below investment-grade quality by PPM America, Inc. (“Sub-Adviser”). Below investment grade securities offer a higher yield, but generally carry more risks than higher rated securities with similar maturities. As a result, an investment in below investment grade securities is considered speculative.
The Fund may invest in Rule 144A and Regulation S securities. Rule 144A securities are securities offered as exempt from registration with the Securities and Exchange Commission (“SEC”) but are typically treated as liquid securities because there is a market for such securities. Regulation S securities are securities of U.S. and non-U.S. issuers that are issued through private offerings without registration with the SEC pursuant to Regulation S under the Securities Act of 1933, as amended.
Additionally, the Fund has the ability to invest in other investment companies, such as money market funds and exchange-traded funds (“ETFs”). For purposes of satisfying the 80% requirement, the Fund may invest in fixed income ETFs comprised of the securities described above. The Fund may also invest in cash or cash equivalents.
For purposes of satisfying the 80% requirement, the Fund may also invest in structured investments and derivative instruments that have economic characteristics similar to the debt instruments mentioned above such as futures contracts, options or swap agreements. Specifically, the Fund may use FX forwards to manage currency risk. The Fund may also use futures to hedge duration or to increase the Fund’s exposure to interest rate or yield curve risk. The Fund may also use credit default swaps or credit default swap indices (“CDX”) to increase or decrease the Fund’s exposure to credit risk or to hedge credit risk in a particular name, industry or country. The Fund may, subject to applicable law, invest without limitation in derivative instruments.
The Fund may invest without limit in investments denominated in any currency, but currently expects to invest a substantial amount of its assets in investments denominated in the U.S. dollar.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of emerging market debt instruments. | ||||||||||||||||||||||||||||||
| JNL/PPM AMERICA HIGH YIELD BOND FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in high-yield, high-risk debt securities (“junk bonds”) and related investments that are rated below investment grade (i.e., rated below BBB- or Baa3) by at least one major credit rating agency, or, if not rated by any credit rating agency, determined to be below investment-grade quality by PPM America, Inc. (“Sub-Adviser”). Below investment grade securities could include split-rated securities, which are securities that are rated as investment grade by at least one credit rating agency but rated below investment grade by another agency. Below investment grade securities offer a higher yield, but generally carry more risks than higher rated securities with similar maturities. As a result, an investment in below investment grade securities is considered speculative.
The Fund may also invest up to 20% of its total assets in equity securities (other than preferred stock, in which the Fund may invest without limit). The Fund may invest in securities sold pursuant to Rule 144A of the Securities Act of 1933, as amended. Rule 144A securities are restricted securities that can be resold to qualified institutional buyers but not to the general public. The Fund may also invest in bank loans.
The Fund may also invest up to 35% of its total assets in securities of foreign issuers. To the extent that the Fund invests in emerging market debt rated below BBB- or Baa3 by at least one major credit rating agency, or, if not rated by any credit rating agency, determined by Sub-Adviser to be below investment-grade quality, this will be considered as an investment in a high-yield security for purposes of the 80% investment minimum requirement.
Additionally, the Fund has the ability to invest in other investment companies, such as exchange-traded funds (“ETFs”), money market funds, unit investment trusts and open-end and closed-end funds, including affiliated investment companies. For purposes of satisfying the 80% requirement, the Fund may invest in high yield ETFs comprised of the securities described above. The Fund generally uses high yield ETFs as a tool to obtain exposure to the securities in which it primarily invests.
In seeking to maximize income, the Sub-Adviser seeks to identify the best relative value investment opportunities across various debt sectors by analyzing overall economic conditions within and among these sectors. In pursuing capital appreciation, the Sub-Adviser looks for those companies that it believes have the highest potential for improving credit fundamentals. In light of the risks associated with high yield securities, the Sub-Adviser takes various factors into consideration in evaluating the creditworthiness of an issuer.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in high-yield, high-risk debt securities (“junk bonds”) and related investments that are rated below investment grade (i.e., rated below BBB- or Baa3) by at least one major credit rating agency, or, if not rated by any credit rating agency, determined to be below investment-grade quality by PPM America, Inc. (“Sub-Adviser”). | ||||||||||||||||||||||||||||||
| JNL/PPM America Investment Grade Credit Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of U.S. dollar-denominated investment grade debt securities of U.S. and foreign issuers (measured at the time of purchase). The debt securities in which the Fund may invest include, but are not limited to, government, corporate, mortgage-backed securities, commercial mortgage-backed securities, asset-backed securities and cash equivalents. Investment grade securities are securities that are rated investment grade (i.e., rated at or above BBB- or Baa3) by at least one major credit rating agency or, if not rated by any credit rating agency, deemed to be investment-grade quality by PPM America, Inc. (the “Sub-Adviser”). The Sub-Adviser will consider split-rated securities, which are securities that are rated as investment grade by at least one credit rating agency but rated below investment grade by another agency, to be investment grade securities. The Fund will seek to maintain a portfolio duration within one year (plus or minus) of the duration of the Bloomberg U.S. Credit Index. Duration is a measure of a bond price’s sensitivity to a change in interest rates (e.g., if interest rates were to rise in a parallel manner by an equal 1%, a bond or bond fund with a five-year average duration would lose approximately 5% of its value). As of December 31, 2025, the ten-year historical average duration of the Bloomberg U.S. Credit Index was 6.04 years.
The Fund’s investments in U.S. dollar-denominated securities of foreign issuers may include securities of issuers based in emerging markets. Emerging markets countries are generally considered to be countries with developing economies or markets and may include any country recognized to be an emerging market country by the International Monetary Fund, MSCI, Inc. or Standard & Poor’s Corporation or recognized to be a developing country by the United Nations.
For purposes of satisfying the 80% requirement, the Fund may also invest in derivative instruments, including commodity-linked derivative instruments, that have economic characteristics similar to the fixed income instruments mentioned above such as futures contracts, options or swap agreements. Specifically, the Fund may use treasury futures to hedge or manage duration or to increase the Fund’s exposure to interest rate or yield curve risk. The Fund may also use credit default swaps or credit default swap indices (CDX) to increase or decrease the Fund’s exposure to credit risk or to hedge credit risk in a particular name, industry or sector. The Fund may, subject to applicable law, invest without limitation in derivative instruments. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into purchase and sale contracts of mortgage pools or by using other investment techniques (such as dollar rolls), subject to applicable law.
Additionally, the Fund has the ability to invest in other investment companies, such as money market funds and exchange-traded funds (“ETFs”). For purposes of satisfying the 80% requirement, the Fund may invest in fixed income ETFs comprised of the securities described above. The Fund may also invest in contingent convertible securities, sometimes referred to as “CoCos.” CoCos are a form of hybrid debt security issued by banking institutions that are intended to either automatically convert into equity or have their principal written down upon the occurrence of certain pre-specified trigger events.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of U.S. dollar-denominated investment grade debt securities of U.S. and foreign issuers (measured at the time of purchase). | ||||||||||||||||||||||||||||||
| JNL/PPM AMERICA TOTAL RETURN FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of fixed-income investments of U.S. and foreign issuers such as government, corporate, mortgage-backed securities and other asset-backed securities and cash equivalents. The Sub-Adviser also invests in collateralized loan obligations. The Fund’s average portfolio duration normally varies within one year (plus or minus) of the duration of the Bloomberg U.S. Aggregate Index. Duration is a measure of a bond price’s sensitivity to a change in interest rates. Generally, the longer a bond’s duration, the greater its price sensitivity to a change in interest rates. For example, portfolio duration of one year means that if interest rates increased by one percent, the value of the portfolio would decrease by approximately one percent. The Fund seeks to manage duration versus the duration of the Bloomberg U.S. Aggregate Index as a reflection of its expectation for future changes in interest rates.
The Fund may invest up to 20% of its total assets in securities rated below investment grade (sometimes referred to as “high yield” securities or “junk bonds”), including floating rate loans and securities of distressed companies. High yield or junk bonds are bonds that are rated below investment grade (i.e., rated below BBB- or Baa3) by at least one major credit rating agency or, if not rated by any credit rating agency, deemed to be below investment-grade quality by PPM America, Inc. (“Sub-Adviser”). Investment grade securities could include split-rated securities, which are securities that are rated as investment grade by at least one credit rating agency but rated below investment grade by another agency. Below investment grade securities offer a higher yield, but generally carry more risks than higher rated securities with similar maturities. As a result, an investment in below investment grade securities is considered speculative. The Fund may invest without limit in U.S. dollar-denominated securities of foreign issuers, up to 15% of which may be issued by issuers based in emerging markets. Emerging markets countries are generally considered to be countries with developing economies or markets and may include any country recognized to be an emerging market country by the International Monetary Fund, MSCI, Inc. or Standard & Poor’s Corporation or recognized to be a developing country by the United Nations.
For purposes of satisfying the 80% requirement, the Fund may also invest in derivative instruments, including commodity-linked derivative instruments, that have economic characteristics similar to the fixed income instruments mentioned above such as futures contracts or swap agreements. Specifically, the Fund may use treasury futures to hedge or manage duration or to increase or decrease the Fund’s exposure to interest rate or yield curve risk. The Fund may also use credit default swaps or credit default swap indices (CDX) to increase or decrease the Fund’s exposure to credit risk or to hedge credit risk in a particular name, industry or sector. The Fund may, subject to applicable law, invest without limitation in derivative instruments. The Fund may, without limitation, seek to obtain market exposure to the securities in which it primarily invests by entering into purchase and sale contracts of mortgage pools or by using other investment techniques, subject to applicable law, (such as dollar rolls).
Additionally, the Fund has the ability to invest in other investment companies, such as exchange-traded funds (“ETFs”), money market funds, unit investment trusts and open-end and closed-end funds, including affiliated investment companies. The Fund may also invest in contingent convertible securities, sometimes referred to as “CoCos.” CoCos are a form of hybrid debt security issued by banking institutions that are intended to either automatically convert into equity or have their principal written down upon the occurrence of certain pre-specified trigger events.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified portfolio of fixed-income investments of U.S. and foreign issuers such as government, corporate, mortgage-backed securities and other asset-backed securities and cash equivalents. | ||||||||||||||||||||||||||||||
| JNL/RAFI Fundamental U.S. Small Cap Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the component securities (“Component Securities”) of the RAFI Fundamental US Small Company Index (the “Index”). The Fund may invest the remainder of its assets in cash, securities, and instruments that are not Component Securities but which Mellon Investments Corporation, the Fund’s sub-adviser (“Sub-Adviser”), believes will help the Fund track its Index. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
The Index is constructed by RAFI Indices, LLC (the “Index Provider”). The Index Provider uses a fundamental weighting approach to construct the Index, which includes a diversified universe of U.S. small companies determined by the relative size of each company based on a company’s fundamental footprint, including adjusted sales, cash flow, dividends and buybacks, and book value.
As of December 31, 2025, the Index consisted of 946 Component Securities. The Index is reconstituted annually and rebalanced on a quarterly staggered basis on the last business day of March, June, and September and the third Friday of December. The Index is split into four equal parts (tranches), and each tranche has equal weight at the March rebalance. Each tranche is rebalanced once a year to target weights determined for that quarter.
The Sub-Adviser uses a “passive” or “indexing” approach to try to achieve the Fund’s investment objective. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund's objective. The Fund's use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may also invest in exchange-traded funds (“ETFs”) to assist with index rebalances and to meet redemption or purchase requests. The Fund's holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest, without limitation, in U.S. equity and equity-related securities, including common and preferred securities, securities of real estate companies and real estate investment trusts (“REITs”). In addition to futures, as described above, the Fund may also invest in other derivative instruments, such as options or swap agreements. |
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| Strategy Portfolio Concentration [Text] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the component securities (“Component Securities”) of the RAFI Fundamental US Small Company Index (the “Index”). | ||||||||||||||||||||||||||||||
| JNL/RAFI Multi-Factor U.S. Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the component securities (“Component Securities”) of the RAFI Multi-Factor US Index (the “Index”). The Fund may invest the remainder of its assets in cash, securities, and instruments that are not Component Securities but which Mellon Investments Corporation, the Fund’s sub-adviser (“Sub-Adviser”), believes will help the Fund track its Index. The Index is designed to provide long-only exposure to multiple equity factors that seek to produce attractive long-term returns, and which may lower risk compared to less diversified strategies. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
The Index is constructed by RAFI Indices, LLC (the “Index Provider”). The Index Provider uses a rules-based approach to construct five factor portfolios within the Index. The Index equally weights each of the factor portfolios into a combined portfolio of stocks that are weighted by their fundamental size (e.g., earnings, revenues, book value).
The Index consists of five “factor portfolios,” each of which emphasizes one of the following factors: value, low volatility, quality, momentum, and size.
The value factor emphasizes companies with high ratio of company fundamental weight to its market capitalization weight.
The low volatility factor emphasizes companies with low risk measure calculated as the variance of a company’s daily excess return over five years explained by global, local country groups, and global industry excess returns.
The quality factor emphasizes companies that are high in profitability and low in investment spending.
The momentum factor emphasizes stocks with high momentum.
The size factor is the equal weight of the small company portions, based on a company’s fundamental weight, of the other four factors. A company’s fundamental weight may be adjusted by a “free float factor,” which is the ratio of the total market capitalization of the shares of the company in free float to the total market capitalization of the company.
For the value, low volatility, and quality “factor portfolios,” eligible securities are ranked by their factor score, and the top 25% of companies by fundamental weight are selected for inclusion within that “factor portfolio.” For the momentum “factor portfolio,” eligible securities are ranked by their momentum score and the top 50% of companies by fundamental weight are selected for inclusion.
The Index is reconstituted on an annual basis and rebalanced on a quarterly basis. As of December 31, 2025, the Index consisted of 837 Component Securities. The Index allocates an equal weight to each factor at each quarterly rebalance. Each factor (other than momentum) is reconstituted annually on the last business day of March and rebalanced on a quarterly staggered basis on the last business day of March, June, and September and the third Friday of December. This staggered rebalancing is intended to diversify risk and decrease market impact. The momentum factor, unlike the other factors, is reconstituted and fully rebalanced quarterly.
The Sub-Adviser uses a “passive” or “indexing” approach to try to achieve the Fund’s investment objective. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund's objective. The Fund's use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may also invest in exchange-traded funds ("ETFs") to assist with index rebalances and to meet redemption or purchase requests. The Fund's holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may invest, without limitation, in U.S. equity and equity-related securities, including common and preferred securities. In addition to futures, as described above, the Fund may also invest in other derivative instruments, such as options or swap agreements. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the component securities (“Component Securities”) of the RAFI Multi-Factor US Index (the “Index”). | ||||||||||||||||||||||||||||||
| JNL/T. Rowe Price Capital Appreciation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 50% of its total assets in common stocks. The remaining assets are generally invested in corporate and government debt (including mortgage- and asset-backed securities) and bank loans (which represent an interest in amounts owed by a borrower to a syndicate of lenders), in keeping with the Fund’s objective. The Fund may invest up to 25% of its total assets in foreign securities.
The Fund’s investments in common stocks generally fall into one of two categories: the larger category comprises long-term core holdings whose prices when T. Rowe Price Associates, Inc., the Fund’s sub-adviser (“Sub-Adviser”) buys them are considered low in terms of company assets, earnings, or other factors; the smaller category comprises opportunistic investments whose prices the Sub-Adviser expects to rise in the short term but not necessarily over the long term. There are no limits on the market capitalization of the issuers of the stocks in which the Fund may invest. Because the Sub-Adviser attempts to prevent losses as well as achieve gains, the Sub-Adviser typically uses a value approach in selecting investments. The Sub-Adviser’s research team seeks to identify companies that seem undervalued by various measures, such as price/book value, and may be temporarily out of favor but the Sub-Adviser believes have good prospects for capital appreciation. The Sub-Adviser may establish relatively large positions in companies it finds particularly attractive. The Fund may at times invest significantly in certain sectors.
In addition, the Sub-Adviser searches for attractive risk/reward values among all types of securities. The portion of the Fund invested in a particular type of security, such as common stocks, results largely from case-by-case investment decisions, and the size of the Fund’s cash reserves may reflect the Sub-Adviser’s ability to find companies that meet its valuation criteria rather than its market outlook.
The Fund may purchase bonds, convertible securities and bank loans for their income or other features or to gain additional exposure to a company. Maturity and quality are not necessarily major considerations, and there are no limits on the maturities or credit ratings of the debt instruments in which the Fund may invest. The Fund may not invest more than 30% of its total assets in below investment-grade debt securities (“junk bonds”) and bank loans combined. If a security is split rated (i.e., rated investment grade by at least one rating agency and noninvestment grade by another rating agency), the higher rating will be used for purposes of this requirement. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 50% of its total assets in common stocks. | ||||||||||||||||||||||||||||||
| JNL/T. Rowe Price Capital Appreciation Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. The equity securities in which the Fund invests include common stocks, securities convertible into common or preferred stocks and warrants and equity-related instruments. The Fund may purchase the stocks of companies of any size but typically focuses on large U.S. companies.
T. Rowe Price Associates, Inc., the Fund’s sub-adviser (“Sub-Adviser”) takes a core approach to stock selection, which means that the Sub-Adviser uses both growth and value styles of investing. The Sub-Adviser typically constructs the portfolio in a “bottom up” manner, an approach that focuses more on evaluations of individual stocks than on analysis of overall economic trends and market cycles.
In selecting stocks for the Fund, the Sub-Adviser evaluates a number of characteristics about the companies, such as management, risk-adjusted return potential, market position, and/or stock valuation.
The Fund’s sector allocations are largely the result of the Sub-Adviser’s focus on stock selection. At times, the Fund may have a significant portion of its assets invested in the same economic sector, such as the information technology sector.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. |
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/T. Rowe Price Growth Stock Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing generally in common stocks of large-capitalization companies. T. Rowe Price Associates, Inc. (“Sub-Adviser”) generally seeks investments in stocks of large-capitalization companies, which the Sub-Adviser defines as a company whose market capitalization is larger than the median market capitalization of companies in the Russell 1000 Growth Index, and that has one or more of the following characteristics: strong cash flow and an above-average rate of earnings growth; the ability to sustain earnings momentum during economic downturns; and occupation of a lucrative niche in the economy and the ability to expand even during times of slow economic growth. The Fund’s growth-oriented investment approach to stock selection reflects the belief that when a company increases its earnings faster than both inflation and the overall growth rate of the economy, it may result in a higher stock price. The Fund may at times invest significantly in certain sectors, such as information technology.
The Fund’s integrated approach to investing combines fundamental analysis and quantitative models to identify stocks that could be included in the portfolio. Stocks are selected based on a variety of metrics such as a company’s valuation, profitability, stability, earnings quality, management capital allocation actions, and indicators of near-term appreciation potential.
As part of the stock selection process, the Sub-Adviser focuses primarily on companies that, in the Sub-Adviser’s opinion, are capable of achieving and sustaining above-average, long-term earnings growth.
The Fund may invest up to 30% of its total assets (excluding reserves) in foreign securities, including securities and instruments that are economically tied to emerging markets.
The Fund's investments may include holdings in companies that only recently began to trade publicly.
The Fund is classified as a “non-diversified” fund, as defined in the Investment Company Act of 1940, as amended (the “1940 Act”), which means that it may invest more of its assets in fewer issuers than “diversified” mutual funds. |
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| Strategy Portfolio Concentration [Text] | The Fund may invest up to 30% of its total assets (excluding reserves) in foreign securities, including securities and instruments that are economically tied to emerging markets. | ||||||||||||||||||||||||||||||
| JNL/T. ROWE PRICE MID-CAP GROWTH FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes), under normal circumstances, in a broadly diversified portfolio of common stocks of medium-sized (mid-capitalization) companies whose earnings T. Rowe Price Associates, Inc., the Fund’s sub-adviser (“Sub-Adviser”), expects to grow at a faster rate than the average company.
The Sub-Adviser defines mid-capitalization companies as those whose market capitalization, at the time of acquisition by the Fund, falls within the capitalization range of companies (i) in the Russell MidCap® Growth Index; or (ii) represented in a third-party growth-oriented index and the company’s market capitalization falls within the market capitalization range of companies in the Russell Midcap Index, MSCI USA Mid Cap Index, or MSCI World Mid Cap Index (after systematically removing any companies that cannot reasonably be considered a mid-cap company from the high and low ends of the range of each index). The market capitalization of companies in the Fund’s portfolio, the Russell MidCap® Growth Index, the Russell Midcap Index, the MSCI USA Mid Cap Index, or the MSCI World Mid Cap Index change over time. As of December 31, 2025, the market capitalization range for the Russell MidCap Growth Index was $1.2 billion to $88.9 billion. As of December 31, 2025, the market capitalization range represented across the Russell Midcap Index, MSCI USA Mid Cap Index, and MSCI World Mid Cap Index (after removing any outlier companies) was $1.8 billion to $98 billion.
The Fund may at times invest significantly in the same economic sector.
In addition, the Fund has the flexibility to purchase stock of some larger and smaller companies that have qualities consistent with the portfolio’s core characteristics. The Fund may also invest up to 25% of its total assets, (excluding reserves) in foreign securities, including securities and instruments that are economically tied to emerging markets, and 10% of its assets in futures.
The Fund's investments may include holdings in companies that only recently began to trade publicly.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes), under normal circumstances, in a broadly diversified portfolio of common stocks of medium-sized (mid-capitalization) companies whose earnings T. Rowe Price Associates, Inc., the Fund’s sub-adviser (“Sub-Adviser”), expects to grow at a faster rate than the average company. | ||||||||||||||||||||||||||||||
| JNL/T. ROWE PRICE SHORT-TERM BOND FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund will invest in a diversified portfolio of short- and intermediate-term investment-grade corporate, government, and asset- and mortgage-backed securities. The Fund may also invest in money market securities, bank obligations, collateralized mortgage obligations, and foreign securities, including securities of issuers in emerging markets. Normally, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in bonds. The Fund’s average effective maturity will normally not exceed three (3) years. The Fund will only purchase securities that are rated within one of the four highest credit rating categories (e.g. AAA, AA, A, BBB, or equivalent) at the time of purchase by at least one major credit rating agency or, if unrated, deemed by T. Rowe Price Associates, Inc. (“Sub-Adviser”) to be of comparable quality. The Fund may continue to hold a security that has been downgraded or loses its investment grade rating after purchase.
Within this broad structure, investment decisions generally reflect the Sub-Adviser’s outlook for interest rates and the economy as well as the prices, yields and credit quality of the various securities. For example, if the Sub-Adviser expects interest rates to fall, it may purchase longer-term securities (within the framework of the Fund’s investment program) in an attempt to seek higher yields and/or capital appreciation. Conversely, if the Sub-Adviser expects interest rates to rise, the Fund may seek securities with shorter maturities.
In addition, the Fund uses interest rate futures and interest rate futures options. Interest rate futures and interest rate future options are typically used in an effort to manage its exposure to changes in interest rates or to adjust portfolio duration. Additionally, the fund uses mortgage-backed securities on a delayed delivery or forward commitment basis through the "to-be-announced" (TBA) market as a means of adjusting the fund's duration and gaining exposure to investment-grade bonds. The Fund may invest in or sell other futures, including commodity futures.
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| Strategy Portfolio Concentration [Text] | Normally, the Fund will invest at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in bonds. | ||||||||||||||||||||||||||||||
| JNL/T. ROWE PRICE VALUE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | At least 65% of the Fund’s total assets are normally invested in common stocks that T. Rowe Price Associates, Inc. (“Sub-Adviser”) regards as undervalued. Stock holdings are expected to consist primarily of large-company stocks, but may also include mid-cap and small-cap companies. In taking a value approach to investment selection, the Sub-Adviser's research team seeks to identify companies that appear to be undervalued by various measures and may be temporarily out of favor, but which the Sub-Adviser believes have good prospects for capital appreciation.
The Fund may invest up to 25% of its total assets (excluding reserves) in foreign securities, including securities that are economically tied to emerging markets.
In keeping with the Fund’s objective, it may also invest in other securities and use futures, options, swaps, and other derivative-type instruments.
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| Strategy Portfolio Concentration [Text] | At least 65% of the Fund’s total assets are normally invested in common stocks that T. Rowe Price Associates, Inc. (“Sub-Adviser”) regards as undervalued. | ||||||||||||||||||||||||||||||
| JNL/Vanguard Moderate ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant. The Underlying ETFs are affiliated with The Vanguard Group, Inc.
The asset allocation of the Fund is determined through the use of a proprietary asset allocation model developed and managed by the Adviser in conjunction with third-party service providers. The asset allocation models provide initial guidance to specific asset allocations among various asset classes and sub-asset classes. Final allocations are determined by the Adviser through the use of both internal and external resources.
Mellon Investments Corporation ("Mellon"), the Fund’s sub-adviser (“Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically, generally monthly, based on the allocation instructions provided by the Adviser.
There are no geographic limitations to the Underlying ETFs’ investments, and the Underlying ETFs may invest in securities of companies located in developed or emerging markets. Generally, emerging markets include nations transitioning from less developed (often pre-industrial) economies with low per-capita incomes to modern industrial economies with higher standards of living.
During the month, when cash inflows and outflows occur, the Sub-Adviser makes new purchases and sales based on the Fund’s current existing market weights.
Under normal market conditions, the Adviser allocates approximately 30% to 50% (with a target allocation of 40%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities and 50% to 70% (with a target allocation of 60%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
The Sub-Adviser may invest in ETFs in excess of the Investment Company Act of 1940, as amended (the “1940 Act”) limits on investment in other investment companies as instructed by the Adviser.
The Fund may invest, directly or indirectly, in illiquid or thinly traded securities.
The Fund may invest, indirectly through ETFs, in bank loans.
The Fund may lend securities to increase its income.
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. | ||||||||||||||||||||||||||||||
| JNL/Vanguard Moderate Growth ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant. The Underlying ETFs are affiliated with The Vanguard Group, Inc.
The asset allocation of the Fund is determined through the use of a proprietary asset allocation model developed and managed by the Adviser in conjunction with third-party service providers. The asset allocation models provide initial guidance to specific asset allocations among various asset classes and sub-asset classes. Final allocations are determined by the Adviser through the use of both internal and external resources.
Mellon Investments Corporation ("Mellon"), the Fund’s sub-adviser (“Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically, generally monthly, based on the allocation instructions provided by the Adviser.
During the month, when cash inflows and outflows occur, the Sub-Adviser makes new purchases and sales based on the Fund’s current existing market weights.
Under normal market conditions, the Adviser allocates approximately 50% to 70% (with a target allocation of 60%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities and 30% to 50% (with a target allocation of 40%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
There are no geographic limitations to the Underlying ETFs’ investments, and the Underlying ETFs may invest in securities of companies located in developed or emerging markets. Generally, emerging markets include nations transitioning from less developed (often pre-industrial) economies with low per-capita incomes to modern industrial economies with higher standards of living.
The Sub-Adviser may invest in ETFs in excess of the Investment Company Act of 1940, as amended (the “1940 Act”) limits on investment in other investment companies as instructed by the Adviser.
The Fund may invest, directly or indirectly, in illiquid or thinly traded securities.
The Fund may invest, indirectly through ETFs, in bank loans.
The Fund may lend securities to increase its income.
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. | ||||||||||||||||||||||||||||||
| JNL/Vanguard Growth ETF Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. An ETF is an investment fund that is traded on a stock exchange and holds an underlying basket of securities generally designed to track an index. ETFs can be bought and sold through the trading day in the secondary market or at net asset value directly with an authorized participant. The Underlying ETFs are affiliated with The Vanguard Group, Inc.
The asset allocation of the Fund is determined through the use of a proprietary asset allocation model developed and managed by the Adviser in conjunction with third-party service providers. The asset allocation models provide initial guidance to specific asset allocations among various asset classes and sub-asset classes. Final allocations are determined by the Adviser through the use of both internal and external resources.
Mellon Investments Corporation ("Mellon"), the Fund’s sub-adviser (“Sub-Adviser”), is responsible for managing the investment of portfolio assets solely according to the instructions (including the specific Underlying ETFs and the corresponding weights of such Underlying ETFs) provided by the Adviser. The Sub-Adviser executes transactions in the Underlying ETFs, as required, to closely replicate the allocation instructions received from the Adviser. The Fund’s allocations are rebalanced periodically, generally monthly, based on the allocation instructions provided by the Adviser.
During the month, when cash inflows and outflows occur, the Sub-Adviser makes new purchases and sales based on the Fund’s current existing market weights.
Under normal market conditions, the Adviser allocates approximately 70% to 90% (with a target allocation of 80%) of the Fund’s assets to Underlying ETFs that invest primarily in equity securities and 10% to 30% (with a target allocation of 20%) of the Fund’s assets to Underlying ETFs that invest primarily in fixed income securities and/or cash alternatives. The Adviser may also allocate the Fund’s assets to securities and derivative contracts to meet the Fund’s allocation targets.
The Fund may also invest in a range of securities and derivative contracts, including indexes, swap agreements, futures, currency forwards, and U.S. Treasury securities, and cash equivalents including, without limitation, commercial paper, repurchase agreements, and time deposits, as instructed by the Adviser.
There are no geographic limitations to the Underlying ETFs’ investments, and the Underlying ETFs may invest in securities of companies located in developed or emerging markets. Generally, emerging markets include nations transitioning from less developed (often pre-industrial) economies with low per-capita incomes to modern industrial economies with higher standards of living.
The Sub-Adviser may invest in ETFs in excess of the Investment Company Act of 1940, as amended (the “1940 Act”) limits on investment in other investment companies as instructed by the Adviser.
The Fund may invest, directly or indirectly, in illiquid or thinly traded securities.
The Fund may invest, indirectly through ETFs, in bank loans.
The Fund may lend securities to increase its income.
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| Strategy Portfolio Concentration [Text] | Under normal market conditions, the Fund seeks to achieve its investment objective primarily through investing at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in a diversified group of Underlying ETFs. | ||||||||||||||||||||||||||||||
| JNL/WCM Focused International Equity Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities.
The Fund’s investments in equity securities may include common stocks, preferred stocks and warrants. The Fund invests primarily in equity securities or depositary receipts of non-U.S. domiciled companies located in developed countries, but may also invest in emerging markets and less developed countries.
The Fund’s investments in depositary receipts may include American Depositary Receipts (“ADRs”). ADRs are receipts that represent interests in foreign securities held on deposit by U.S. banks.
WCM Investment Management, LLC, the Fund’s sub-adviser (the “Sub-Adviser”), uses a bottom-up approach that seeks to identify companies with attractive fundamentals, such as long-term growth in revenue and earnings, and that show a high probability for superior future growth. The Sub-Adviser’s investment process focuses on seeking industry leading companies that the Sub-Adviser believes possess growing competitive advantages; corporate cultures emphasizing strong, quality and experienced management; low or no debt; and attractive relative valuations. The Sub-Adviser also considers other factors in selecting securities, including political risk, monetary policy risk, and regulatory risk.
Although the Fund may invest in companies in any capitalization range, it will generally invest in large, established multinational companies. The Fund generally will invest in securities of companies located in different regions and in at least three different countries. From time to time, the Fund may have a significant portion of its assets invested in the securities of companies in one or a few countries or regions.
The Sub-Adviser will generally reduce position size in the portfolio based on individual holding size, industry/sector weight, as well as other relevant factors. When performing a fundamental analysis, the Sub-Adviser views valuation as the most significant factor in managing position size. The key factors that the Sub-Adviser considers when determining whether to sell out of a position completely are its evaluation(s) of whether a company’s competitive advantage is deteriorating or no longer expanding; there are more attractive names in an essentially similar industry; a company’s leadership is not performing as expected; a company’s culture is challenged; it deems valuation to be excessive; and/or there is material geopolitical or currency risk.
The Fund may also invest in A Shares of companies based in the People’s Republic of China (“China”) that trade on the Shanghai Stock Exchange and the Shenzhen Stock Exchange through the Shanghai – Hong Kong and Shenzhen – Hong Kong Stock Connect programs (“Stock Connect”). Stock Connect is a mutual stock market access program designed to, among other things, enable foreign investments in China.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its investment objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/Westchester Capital Event Driven Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund primarily employs investment strategies designed to capture price movements generated by specific events, including, but not limited to, securities of companies involved in mergers, acquisitions, asset sales or other divestitures, restructurings, refinancings, recapitalizations, reorganizations or other special situations (referred to as “event-driven opportunities”). Among the investment strategies the sub-adviser, Westchester Capital Management, LLC (“Sub-Adviser”) may use on behalf of the Fund are the following:
Merger-Arbitrage Strategy: The Fund may purchase the securities of companies that are involved in publicly announced mergers, takeovers and other corporate reorganizations, and use one or more arbitrage strategies in connection with the purchase. Although a variety of strategies may be employed depending upon the nature of the reorganizations, the most common merger-arbitrage strategy involves purchasing the shares of an announced acquisition target at a discount to their expected value upon completion of the acquisition. The size of this discount, known as the arbitrage “spread,” generally determines the Fund’s potential profit on any given investment. In conjunction with investment in a target company, the Fund may employ a variety of hedging strategies to protect against issuer-related risk, including selling short the securities of the company that proposes to acquire the target company and/or the purchase and sale of put and call options.
Special Situations Strategy: The Fund may invest in the securities of issuers based upon the expectation of the Sub-Adviser that the price of such securities may change in the short term due to a special situation, such as a stock buy-back, spinoffs and split-offs, credit rating upgrade, the outcome of litigation or other dispute, a positive earnings report, legislative or regulatory changes or other catalyst-driven event.
Capital Structure Arbitrage: Capital structure arbitrage is an investment strategy that seeks to profit from relative pricing discrepancies between related securities, such as securities of different classes issued by the same issuer. For example, when the Sub-Adviser believes that unsecured debt securities are overvalued in relation to senior secured debt securities of the same issuer, the Fund may purchase the senior secured debt securities of the issuer and take a short position in the unsecured debt securities of the same issuer.
Convertible Arbitrage: Convertible arbitrage is a strategy that seeks to profit from mispricings between an issuer’s convertible securities and the underlying equity securities. A common convertible arbitrage approach matches a long position in a convertible security with a short position in the underlying common stock when an investor believes the convertible security is undervalued relative to the value of the underlying equity security. In such a case, the investor may seek to sell short shares of the underlying common stock in order to hedge exposure to the issuer of the equity securities. Convertible arbitrage positions may be designed to earn income from coupon or dividend payments on the investment in the convertible securities.
Distressed/Restructuring: The Fund may invest in securities, including debt securities, of financially distressed companies and companies undergoing or expected to undergo bankruptcy or other insolvency proceeding. The Fund may invest in corporate bonds, privately held loans and other securities or obligations of companies that are highly leveraged, are experiencing financial difficulties or have filed for bankruptcy. The Fund may profit from its investments in such issuers if the issuer undergoes a successful restructuring or recapitalization, undertakes asset sales or participates in spin-off transactions. The Fund may also purchase securities in anticipation of a company’s recovery or turnaround or the liquidation of all or some of the company’s assets.
Option Income Strategies: The Fund may sell, or “write,” call options on its portfolio securities. The Fund may also write call options on one or more basket of stocks, such as the S&P 500 Index or an industry sub-group of the S&P 500 Index. The options written by the Fund are considered “covered” if the Fund owns the stocks or basket of stocks against which the options are written. The Sub-Adviser may determine to purchase shares and sell call options on those shares at approximately the same time, although the sale of options on the Fund’s portfolio securities may occur at any time or not at all. The Sub-Adviser may utilize the option writing strategy at any time, including in a relatively flat or declining market environment, to earn premium income. The Fund may sell call options on substantially all of its portfolio securities.
The Fund may utilize other options strategies, such as writing options on securities it does not currently own (known as “uncovered” options), buying or selling options when the Sub-Adviser believes they may be mispriced or may provide attractive opportunities to earn income, or engaging in risk-reversal transactions. In a risk-reversal transaction, the Sub-Adviser may buy put options and sell call options against a long stock position.
In implementing the Fund’s investment strategies, the Fund may invest in a wide variety of investments, such as equity securities of any kind, debt securities of any kind, including, among others, corporate debt obligations (including defaulted securities and obligations of distressed issuers), those that pay a fixed or floating rate of interest, warrants, convertible securities, master limited partnerships, derivative instruments of any kind, including options, futures, currency forwards and swaps.
The Fund may purchase fixed- and floating-rate income investments of any credit quality or maturity, including corporate bonds, bank debt and preferred securities. Certain of the debt securities in which the Fund invests may carry non-investment-grade ratings (rated BB+ or lower by S&P Global Ratings, or comparably rated by another nationally recognized statistical rating organization), or may be unrated investments of comparable quality, commonly referred to as “high-yield” or “junk” bonds.
The Fund may enter into derivative transactions and other instruments of any kind for hedging purposes, duration or volatility management purposes, or otherwise to gain, or reduce, long or short exposure to one or more asset classes or issuers. For example, the Fund may write call options on its portfolio securities or a market index that is representative of its portfolio with the expectation of generating additional income. The Sub-Adviser may seek to hedge the Fund’s portfolio against a decline in the value of its portfolio securities or a decline in the market generally by purchasing put options.
The Fund also may use derivative transactions with the purpose or effect of creating investment leverage.
The Fund may invest in derivative instruments in any manner consistent with its investment strategies.
The Fund may invest in other investment companies, including exchange-traded funds (“ETFs”). Those investments may be made for the purpose of, among other things, gaining or hedging market exposure, hedging exposure to a particular industry, sector or component of an event-driven opportunity, or managing the Fund’s cash position. The Fund may hold a significant portion of its assets in cash, money market investments, money market funds or other similar short-term investments for defensive purposes or to preserve the Fund’s ability to capitalize quickly on new market opportunities. During periods when the Fund is so invested, its investment returns may be lower than if it were not so invested and the Fund may not achieve its investment objective. The Fund may also invest in special purpose acquisition companies, a form of investment vehicle typically formed for the purpose of acquiring an operating business.
In making investments for the Fund, the Sub-Adviser is guided by the following general considerations:
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| Strategy Portfolio Concentration [Text] | The Fund primarily employs investment strategies designed to capture price movements generated by specific events, including, but not limited to, securities of companies involved in mergers, acquisitions, asset sales or other divestitures, restructurings, refinancings, recapitalizations, reorganizations or other special situations (referred to as “event-driven opportunities”). | ||||||||||||||||||||||||||||||
| JNL/WMC BALANCED FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing primarily in a diversified portfolio of common stocks and investment grade fixed-income securities. The Fund may invest in any type or class of security. The anticipated mix of the Fund’s holdings is typically 60-70% of its assets in equities and 30-40% in fixed-income securities, including, investment-grade corporate bonds, U.S. Treasury and government agency bonds, mortgage-backed securities, asset-backed securities, and commercial-backed securities. Cash and cash equivalents are included in the fixed income fund weighting.
The Fund may invest in derivatives to reduce fixed-income exposure to facilitate meeting the Fund's objective.
The Fund may invest up to 25% of its assets in foreign equity and foreign fixed-income securities.
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| Strategy Portfolio Concentration [Text] | The anticipated mix of the Fund’s holdings is typically 60-70% of its assets in equities and 30-40% in fixed-income securities, including, investment-grade corporate bonds, U.S. Treasury and government agency bonds, mortgage-backed securities, asset-backed securities, and commercial-backed securities | ||||||||||||||||||||||||||||||
| JNL/WMC Equity Income Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities.
The Fund invests mainly in common stocks of mid-size and large companies whose stocks typically pay above-average levels of dividend income and are, in the opinion of Wellington Management Company LLP (“Sub-Adviser”), undervalued relative to similar stocks. The Sub-Adviser generally considers mid-size and large companies to be those companies that, at the time of initial purchase, have market capitalizations of $10 billion or higher. In addition, the Sub-Adviser generally looks for companies that it believes are committed to paying dividends consistently.
The Fund may invest up to 25% of its assets in foreign securities, either directly or through depositary receipts.
The Sub-Adviser employs active investment management methods, which means that securities are bought and sold according to the Sub-Adviser’s evaluations of companies and their financial prospects, the prices of the securities, and the stock market and the economy in general.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to achieve its objective by investing, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in equity securities. | ||||||||||||||||||||||||||||||
| JNL/WMC VALUE FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to meet its objective by investing under normal circumstances at least 65% of its total assets in common stocks of domestic companies. Although the Fund may invest in companies with a broad range of market capitalizations, the Fund will tend to focus on companies with large market capitalizations (generally above $10 billion). Using a value approach, the Fund seeks to invest in stocks that Wellington Management Company LLP (“Sub-Adviser”) believes are underpriced relative to other stocks.
The Fund may invest up to 20% of its total assets in the securities of foreign issuers.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to meet its objective by investing under normal circumstances at least 65% of its total assets in common stocks of domestic companies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Managed Conservative Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 10% to 30% of its assets to Underlying Funds that invest primarily in equity securities, 70% to 90% to Underlying Funds that invest primarily in fixed-income securities, 0% to 30% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
In determining allocations to any particular Underlying Fund, the Fund’s investment adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for managing the investment of portfolio assets solely according to the asset allocation instructions provided by J.P. Morgan Investment Management, Inc. (“JPMorgan”), the Fund’s sub-adviser (“Sub-Adviser”). The Adviser determines the corresponding weights and executes transactions in the Underlying Funds. The Fund’s allocations are rebalanced periodically by the Sub-Adviser.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
The Fund does not take direct positions in derivatives, asset-backed securities, mortgage-backed securities or junk bonds. Through the implementation of the Fund’s asset allocation model, the Fund may seek exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds by purchasing shares of funds that may have direct or indirect exposure to these asset classes. Consequently, the risks to the Fund are limited to the risks associated with investing in funds that have investments in these asset classes. The principal risks to investing in the Fund, including those that may arise from indirect exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds are detailed in the “Principal Risks of Investing” and “Glossary of Risks” sections of the Fund’s prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 10% to 30% of its assets to Underlying Funds that invest primarily in equity securities, 70% to 90% to Underlying Funds that invest primarily in fixed-income securities, 0% to 30% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Managed Moderate Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 30% to 50% of its assets to Underlying Funds that invest primarily in equity securities, 50% to 70% to Underlying Funds that invest primarily in fixed-income securities, 0%-25% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
In determining allocations to any particular Underlying Fund, the Fund’s investment adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for managing the investment of portfolio assets solely according to the asset allocation instructions provided by J.P. Morgan Investment Management, Inc. (“JPMorgan”), the Fund’s sub-adviser (“Sub-Adviser”). The Adviser determines the corresponding weights and executes transactions in the Underlying Funds. The Fund’s allocations are rebalanced periodically by the Sub-Adviser.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
The Fund does not take direct positions in derivatives, asset-backed securities, mortgage-backed securities or junk bonds. Through the implementation of the Fund’s asset allocation model, the Fund may seek exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds by purchasing shares of funds that may have direct or indirect exposure to these asset classes. Consequently, the risks to the Fund are limited to the risks associated with investing in funds that have investments in these asset classes. The principal risks to investing in the Fund, including those that may arise from indirect exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds are detailed in the “Principal Risks of Investing” and “Glossary of Risks” sections of the Fund’s prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 30% to 50% of its assets to Underlying Funds that invest primarily in equity securities, 50% to 70% to Underlying Funds that invest primarily in fixed-income securities, 0%-25% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Managed Moderate Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 50% to 70% of its assets to Underlying Funds that invest primarily in equity securities, 30% to 50% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
In determining allocations to any particular Underlying Fund, the Fund’s investment adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for managing the investment of portfolio assets solely according to the asset allocation instructions provided by J.P. Morgan Investment Management, Inc. (“JPMorgan”), the Fund’s sub-adviser (“Sub-Adviser”). The Adviser determines the corresponding weights and executes transactions in the Underlying Funds. The Fund’s allocations are rebalanced periodically by the Sub-Adviser.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
The Fund does not take direct positions in derivatives, asset-backed securities, mortgage-backed securities or junk bonds. Through the implementation of the Fund’s asset allocation model, the Fund may seek exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds by purchasing shares of funds that may have direct or indirect exposure to these asset classes. Consequently, the risks to the Fund are limited to the risks associated with investing in funds that have investments in these asset classes. The principal risks to investing in the Fund, including those that may arise from indirect exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds are detailed in the “Principal Risks of Investing” and “Glossary of Risks” sections of the Fund’s prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 50% to 70% of its assets to Underlying Funds that invest primarily in equity securities, 30% to 50% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Managed Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 70% to 90% of its assets to Underlying Funds that invest primarily in equity securities, 10% to 30% to Underlying Funds that invest primarily in fixed-income securities, 0%-15% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
In determining allocations to any particular Underlying Fund, the Fund’s investment adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for managing the investment of portfolio assets solely according to the asset allocation instructions provided by J.P. Morgan Investment Management, Inc. (“JPMorgan”), the Fund’s sub-adviser (“Sub-Adviser”). The Adviser determines the corresponding weights and executes transactions in the Underlying Funds. The Fund’s allocations are rebalanced periodically by the Sub-Adviser.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
The Fund does not take direct positions in derivatives, asset-backed securities, mortgage-backed securities or junk bonds. Through the implementation of the Fund’s asset allocation model, the Fund may seek exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds by purchasing shares of funds that may have direct or indirect exposure to these asset classes. Consequently, the risks to the Fund are limited to the risks associated with investing in funds that have investments in these asset classes. The principal risks to investing in the Fund, including those that may arise from indirect exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds are detailed in the “Principal Risks of Investing” and “Glossary of Risks” sections of the Fund’s prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 70% to 90% of its assets to Underlying Funds that invest primarily in equity securities, 10% to 30% to Underlying Funds that invest primarily in fixed-income securities, 0%-15% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL/JPMorgan Managed Aggressive Growth Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates up to 80% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 20% to Underlying Funds that invest primarily in fixed-income securities, 0% to 10% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
In determining allocations to any particular Underlying Fund, the Fund’s investment adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Jackson National Asset Management, LLC (“JNAM” or “Adviser”) is responsible for managing the investment of portfolio assets solely according to the asset allocation instructions provided by J.P. Morgan Investment Management, Inc. (“JPMorgan”), the Fund’s sub-adviser (“Sub-Adviser”). The Adviser then determines the corresponding weights and executes transactions in the Underlying Funds. The Fund’s allocations are rebalanced periodically by the Sub-Adviser.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
The Fund does not take direct positions in derivatives, asset-backed securities, mortgage-backed securities or junk bonds. Through the implementation of the Fund’s asset allocation model, the Fund may seek exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds by purchasing shares of funds that may have direct or indirect exposure to these asset classes. Consequently, the risks to the Fund are limited to the risks associated with investing in funds that have investments in these asset classes. The principal risks to investing in the Fund, including those that may arise from indirect exposure to derivatives, asset-backed securities, mortgage-backed securities or junk bonds are detailed in the “Principal Risks of Investing” and “Glossary of Risks” sections of the Fund’s prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates up to 80% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 20% to Underlying Funds that invest primarily in fixed-income securities, 0% to 10% to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL Conservative Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
The Fund allocates its assets to Underlying Funds that invest primarily in fixed-income and other income-oriented securities (including high-yield (“junk”) bonds) of issuers in the U.S. and foreign countries, including emerging markets. An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
Under normal circumstances, the Fund allocates approximately 0% to 40% of its assets to Underlying Funds that invest primarily in equity securities, 60% to 100% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
Each Underlying Fund has its own investment objective and invests in certain types of securities or other assets in order to implement its investment strategy and seek to achieve its investment objective. Those types of securities or other assets include, but are not limited to: equity securities (such as common stock, preferred stock, and convertible securities), equity futures, equity swaps, currency forwards, currency futures, commodity futures and swaps, bond futures, fixed income swaps, interest rate swaps, and inflation swaps; U.S. and foreign government bonds, including inflation protected bonds (such as Treasury Inflation Protected Securities); bank loans; cash and cash equivalents, including but not limited to money market fund shares. These holdings can include investment exposure to both developed and emerging markets, and may be illiquid or thinly traded. Securities held by the Underlying Funds may be denominated in U.S. and/or non-U.S. currencies.
An Underlying Fund may be leveraged and therefore could be subject to a heightened risk of loss. The leverage involved in certain derivative transactions may result in an Underlying Fund’s net asset value being more sensitive to changes in the value of the related investment.
Some of the Underlying Funds, particularly those classified as fixed-income strategies, may hold a significant amount of asset-backed securities, mortgage-backed securities, derivatives, and/or junk bonds in order to execute their investment strategies.
In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 0% to 40% of its assets to Underlying Funds that invest primarily in equity securities, 60% to 100% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL Moderate Allocation Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
The Fund allocates its assets to Underlying Funds that invest primarily in fixed-income and other income-oriented securities (including high-yield (“junk”) bonds) as well as dividend-paying equity securities of issuers in the U.S. and foreign countries, including emerging markets. An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
Under normal circumstances, the Fund allocates approximately 20% to 60% of its assets to Underlying Funds that invest primarily in equity securities, 40% to 80% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
Each Underlying Fund has its own investment objective and invests in certain types of securities or other assets in order to implement its investment strategy and seek to achieve its investment objective. Those types of securities or other assets include, but are not limited to: equity securities (such as common stock, preferred stock, and convertible securities), equity futures, equity swaps, currency forwards, currency futures, commodity futures and swaps, bond futures, fixed income swaps, interest rate swaps, and inflation swaps; U.S. and foreign government bonds, including inflation protected bonds (such as Treasury Inflation Protected Securities); bank loans; cash and cash equivalents, including but not limited to money market fund shares. These holdings can include investment exposure to both developed and emerging markets, and may be illiquid or thinly traded. Securities held by the Underlying Funds may be denominated in U.S. and/or non-U.S. currencies.
An Underlying Fund may be leveraged and therefore could be subject to a heightened risk of loss. The leverage involved in certain derivative transactions may result in an Underlying Fund’s net asset value being more sensitive to changes in the value of the related investment.
Some of the Underlying Funds, particularly those classified as fixed-income strategies, may hold a significant amount of asset-backed securities, mortgage-backed securities, derivatives, and/or junk bonds in order to execute their investment strategies.
In determining allocations to any particular Underlying Fund, the Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 20% to 60% of its assets to Underlying Funds that invest primarily in equity securities, 40% to 80% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL MODERATE GROWTH ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 40% to 80% of its assets to Underlying Funds that invest primarily in equity securities, 20% to 60% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of asset-backed securities, mortgage-backed securities, derivatives, and/or junk bonds in order to execute their investment strategy.
In determining allocations to any particular Underlying Fund, the Fund’s Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 40% to 80% of its assets to Underlying Funds that invest primarily in equity securities, 20% to 60% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL GROWTH ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 60% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 40% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of asset-backed securities, mortgage-backed securities, derivatives, and/or junk bonds in order to execute their investment strategy.
In determining allocations to any particular Underlying Fund, the Fund’s Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 60% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 40% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL AGGRESSIVE GROWTH ALLOCATION FUND | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to achieve its objective by investing in Class I shares of a diversified group of other Funds (“Underlying Funds”). The Underlying Funds in which the Fund may invest are the Jackson Credit Opportunities Fund, the Jackson Real Assets Fund, and certain Funds that are part of the JNL Series Trust. Not all Funds of the JNL Series Trust are available as Underlying Funds. Please refer to the statutory prospectus for a list of available Underlying Funds.
Under normal circumstances, the Fund allocates approximately 70% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 30% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies.
The Fund allocates its assets among Underlying Funds categorized by the Adviser into the following investment categories:
The Fund considers the Underlying Funds in the Fixed-Income investment category to be funds that invest primarily in fixed-income securities, and the Underlying Funds in the International/Global Equity, Sector Equity, and U.S. Equity investment categories to be funds that invest primarily in equity securities. The Underlying Funds in the Allocation investment category include funds that can invest in a variety of asset classes in various proportions, may take measures to manage risk and/or adapt to prevailing market conditions and may have significant exposure to both fixed-income and equity securities. To the extent the Fund invests in one of these Underlying Funds, the Fund’s exposure to fixed-income securities and equity securities will be allocated according to the Underlying Fund’s relative exposure to these asset classes. The Fund considers the Underlying Funds in the Alternative investment category to be funds that invest primarily in alternative assets and employ alternative strategies.
Two Underlying Funds, the Jackson Credit Opportunities Fund and the Jackson Real Assets Fund, each operate as an interval fund pursuant to Rule 23c-3 under the Investment Company Act of 1940, as amended (the “1940 Act”).
Some of the Underlying Funds, particularly those classified as Fixed Income Strategies, may hold a significant amount of asset-backed securities, mortgage-backed securities, derivatives, and/or junk bonds in order to execute their investment strategy.
In determining allocations to any particular Underlying Fund, the Fund’s Adviser considers, among other things, long-term market and economic conditions, historical performance of each Underlying Fund, and expected long-term performance of each Underlying Fund, as well as diversification to control overall portfolio risk exposure.
Some of the Underlying Funds may invest in securities issued by companies located in countries outside the United States, including a range of developing and emerging market countries. An “emerging market country” is a country that, at the time of investment, is classified as an emerging or developing country by any supranational organization such as an institution in the World Bank Group or the United Nations, or similar entity, or is considered an emerging market country for purposes of constructing a major emerging market securities index.
The Adviser may change the Underlying Funds in which the Fund invests from time to time at its discretion without notice or shareholder approval. Therefore, the Fund may invest in Underlying Funds that are not listed in the statutory prospectus.
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| Strategy Portfolio Concentration [Text] | Under normal circumstances, the Fund allocates approximately 70% to 100% of its assets to Underlying Funds that invest primarily in equity securities, 0% to 30% to Underlying Funds that invest primarily in fixed-income securities, 0% to 20% of its assets to Underlying Funds that invest primarily in money market securities, and 0% to 20% of its assets to Underlying Funds that invest primarily in alternative assets and employ alternative strategies. | ||||||||||||||||||||||||||||||
| JNL Bond Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income securities that seek to track the performance and characteristics of the Bloomberg U.S. Aggregate Index (“Index”) that Mellon Investments Corporation ("Mellon" or "Sub-Adviser") believes to be important such as Option Adjusted Duration, Maturity, Average Quality Rating, Sector/Industries, and Yield to worst. The Index includes Treasuries, government-related credit, mortgage-backed securities (agency fixed-rate pass-throughs), asset-backed securities and commercial mortgage backed securities (agency and non-agency). Research and experience indicate that it is impractical to attempt to fully replicate most broad fixed-income securities market indices. The Index includes thousands of issues, many of which may be illiquid and unavailable in the secondary markets. Additionally, reinvestment of cash flows would be costly in a full replication environment, as it would entail trading many issues in uneven amounts. Given these difficulties, the Sub-Adviser utilizes a representative sampling approach that combines analysis and the experience and judgment of its investment professionals.
Through the representative sampling approach, the Sub-Adviser selects what it believes is a representative basket of securities in order to track the important risk characteristics of the Index. Given this fixed income index cannot be fully replicated, the Fund uses a representative sampling approach to select bonds that match the important risk characteristics of the Index. The Fund's holdings are rebalanced on a monthly basis to reflect changes in the composition of the Index.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, such as actively buying and selling bonds based upon interest rate bets or sector rotation. Indexing may offer a cost-effective approach to gaining diversified market exposure over the long-term.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in fixed-income securities that seek to track the performance and characteristics of the Bloomberg U.S. Aggregate Index (“Index”) that Mellon Investments Corporation ("Mellon" or "Sub-Adviser") believes to be important such as Option Adjusted Duration, Maturity, Average Quality Rating, Sector/Industries, and Yield to worst. | ||||||||||||||||||||||||||||||
| JNL Emerging Markets Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund seeks to invest under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar® Emerging Markets Target Market Exposure Index℠ (Net) (“Index”), including depositary receipts representing securities of the Index; which may be in the form of American Depositary receipts (“ADRs”), Global Depositary receipts (“GDRs”) and European Depositary receipts (“EDRs”).
The Index is a rules-based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Emerging Markets equity markets. Morningstar Indexes classifies Brazil, Chile, Colombia, Mexico, Peru, China, India, Indonesia, South Korea, Malaysia, Philippines, Taiwan, Thailand, Czech Republic, Greece, Hungary, Russia, Turkey, Egypt, Kuwait, Qatar, South Africa, Saudi Arabia, and United Arab Emirates as Emerging Markets. Morningstar Indexes reviews the market classification annually and consecutively updates the list.
There is no specific tilt based on region. While the Index will contain securities from China and Russia, their weights are determined solely in accordance with their float market capitalization. As of December 31, 2025, total percentage weight of securities from China was 29% and that from Russia was 0%.
The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 1,469 constituents and the full market capitalization range was $307 million to $1.5 trillion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the performance of the Index by investing all or substantially all of its assets in the securities that comprise the Index. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long-term.
Emerging market issuers may not be subject to accounting, auditing, legal and financial reporting standards comparable to those in developed markets, and emerging markets generally have less diverse and less mature economic structures, as well as less stable political systems, than those of developed countries. Because the Fund seeks to track an index comprised of foreign securities, it may be more susceptible to such risks than a Fund that seeks to track an index comprised of domestic securities.
When attempting to replicate the Index, portfolio turnover is typically limited to what the Index adds and deletes, contract owner contributions and withdrawals, fund of fund purchases and redemptions, and reinvestment income. The replicated portfolio does not require rebalancing as a result of market movement. The Fund stays aligned with the Index automatically with the change in share price, due to the close similarity between the holdings of the Index and those of the Fund. The Fund will rebalance on or about the date that the Index rebalances.
The Fund will use to a significant degree derivative instruments, such as options, futures, and options on futures (including those relating to securities, indexes, foreign currencies and interest rates), forward contracts, swaps and hybrid instruments (typically structured notes), as a substitute for investing directly in equities, bonds and currencies in connection with its investment strategy. The Fund also may use such derivatives as part of a hedging strategy or for other purposes related to the management of the Fund. Derivatives may be entered into on established exchanges or through privately negotiated transactions referred to as over-the-counter derivatives. The Fund also may purchase or sell securities on a forward commitment (including “TBA” (to be announced) basis). These transactions involve a commitment by the Fund to purchase or sell particular securities with payment and delivery taking place at a future date and permit the Fund to lock in a price or yield on a security it owns or intends to purchase, regardless of future changes in interest rates or market conditions.
The Fund also may invest in derivative securities to manage cash flows and equitize dividend accruals.
In addition, the Fund may also invest in exchange-traded funds (“ETFs”). ETFs may be used in the Fund to invest cash until such time as the Fund purchases local securities. ETFs may also be used to gain exposure to local markets that may be closed, or that are expensive or difficult to trade in local shares.
The Fund may concentrate its investments in an industry or group of industries to the extent that the Index that the Fund is designed to track is also so concentrated.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund seeks to invest under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in securities included in the Morningstar® Emerging Markets Target Market Exposure Index℠ (Net) (“Index”), including depositary receipts representing securities of the Index; which may be in the form of American Depositary receipts (“ADRs”), Global Depositary receipts (“GDRs”) and European Depositary receipts (“EDRs”). | ||||||||||||||||||||||||||||||
| JNL International Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Index or derivative securities economically related to the Index. The Fund seeks to track the performance and characteristics of the Index, a rules-based, float market capitalization-weighted index designed to cover 85% of the equity float-adjusted market capitalization of the Developed Markets ex-North America equity markets. As of December 31, 2025, the Index included equities listed in Austria, Australia, Belgium, Switzerland, Germany, Denmark, Spain, Finland, France, Great Britain, Hong Kong, Ireland, Israel, Italy, Japan, the Netherlands, Norway, New Zealand, Poland, Portugal, Sweden, Singapore, and the U.S. (non-U.S. entities that are listed in the U.S.).
The Index is reconstituted semiannually and implemented after the close of business on the third Friday of June and December and is effective the following Monday. The Index is rebalanced quarterly and implemented after the close of business on the third Friday of March, June, September, and December and is effective the following Monday.
As of December 31, 2025, the Index had 650 constituents and the full market capitalization range was $463 million to $420 billion. The number of securities is not fixed and can vary from reconstitution to reconstitution.
To implement this strategy, the Fund may invest up to 50% of its net asset value in financial futures, a type of derivative, to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. In addition, the Fund may use foreign currency forward contracts, a type of derivative, to maintain the approximate currency exposure of the Index. The Fund's use of financial futures and foreign currency forward contracts is intended to assist replicating the investment performance of the Index.
The Fund may also invest in a combination of exchange-traded funds ("ETFs") and cash to maintain correlation to its Index, to assist with Index rebalances, and to meet redemption or purchase requests.
The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. Indexing may offer a cost-effective approach to gaining diversified market exposure over the long term. The Fund's holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund invests under normal circumstances at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the Index or derivative securities economically related to the Index. | ||||||||||||||||||||||||||||||
| JNL Mid Cap Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P MidCap 400 Index (“Index”) in proportion to their market capitalization weighting in the Index including REITs that meet the index provider’s criteria for market capitalization, public float, financial viability, liquidity, price reasonableness, and sector representation. The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range of the Index is $1.2 billion to $33.6 billion. Indexing may offer a cost-effective investment approach to gaining diversified market exposure over the long term.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment of income. The replicated portfolio does not require rebalancing as a result of market movement. It is rebalanced automatically with the change in share prices of the securities owned. The Fund’s holdings are rebalanced on a regular basis to reflect changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks in the S&P MidCap 400 Index (“Index”) in proportion to their market capitalization weighting in the Index including REITs that meet the index provider’s criteria for market capitalization, public float, financial viability, liquidity, price reasonableness, and sector representation. | ||||||||||||||||||||||||||||||
| JNL Small Cap Index Fund | |||||||||||||||||||||||||||||||
| Prospectus [Line Items] | |||||||||||||||||||||||||||||||
| Strategy [Heading] | Principal Investment Strategies. | ||||||||||||||||||||||||||||||
| Strategy Narrative [Text Block] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the S&P SmallCap 600 Index (“Index”) in proportion to their market capitalization weighting in the Index. The Index is a quarterly-rebalanced, float-adjusted market cap weighted index comprised of approximately 600 U.S. common equities and REITs that meet the index provider’s criteria for market capitalization, public float, financial viability, liquidity, price reasonableness, and sector representation. The Index may invest across all GICS sectors and may include investments in financial services companies. The Fund employs a passive investment approach, called indexing, which attempts to replicate the investment performance of the Index through representative sampling. The Fund does not employ traditional methods of active investment management, which involves the buying and selling of securities based upon security analysis. The Fund attempts to replicate the Index by investing all or substantially all of its assets in the stocks that make up the Index. As of December 31, 2025, the market capitalization range for the Index was $261.7 million to $9.3 billion.
When attempting to replicate a capitalization-weighted index such as the Index, portfolio turnover is reduced to what the index adds and deletes, contract owner contributions and withdrawals, and reinvestment of income. The replicated portfolio does not require rebalancing as a result of market movement. It is rebalanced automatically with the change in share prices of the securities owned. The Fund’s holdings are rebalanced on a quarterly basis to reflect changes in the composition of the Index.
The Fund may also invest in a combination of exchange-traded funds (“ETFs”) and cash to maintain correlation to its index, to assist with index rebalances, and to meet redemption or purchase requests.
The Fund may invest in financial futures, a type of derivative that may be used to obtain exposure to a variety of underlying assets, to provide liquidity for cash flows, to hedge dividend accruals or for other purposes that facilitate meeting the Fund’s objective. The Fund’s use of financial futures is intended to assist replicating the investment performance of the Index.
The Fund may lend its securities to increase its income.
Although the Fund is diversified, the Fund may, at times, be invested in a non-diversified manner to the extent the Index is also invested in a non-diversified manner.
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| Strategy Portfolio Concentration [Text] | The Fund invests, under normal circumstances, at least 80% of its assets (net assets plus the amount of any borrowings for investment purposes) in the stocks included in the S&P SmallCap 600 Index (“Index”) in proportion to their market capitalization weighting in the Index. |