| Label | Element | Value | ||
|---|---|---|---|---|
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Registrant Name | dei_EntityRegistrantName | JPMORGAN TRUST IV | ||
| Prospectus Date | rr_ProspectusDate | Mar. 01, 2025 | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk/Return [Heading] | rr_RiskReturnHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Class/Ticker: I/EMREX</span> | ||
| Objective [Heading] | rr_ObjectiveHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">What is the goal of the Fund?</span> | ||
| Objective, Primary [Text Block] | rr_ObjectivePrimaryTextBlock | The Fund seeks to provide long-term capital appreciation. | ||
| Expense [Heading] | rr_ExpenseHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Fees and Expenses of the Fund</span> | ||
| Expense Narrative [Text Block] | rr_ExpenseNarrativeTextBlock | The following tables describe the fees and expenses that you may pay if you buy, hold and sell shares of the Fund. You may pay other fees, such as brokerage commissions and other fees to financial intermediaries, which are not reflected in the table and examples below. | ||
| Operating Expenses Caption [Text] | rr_OperatingExpensesCaption | <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">ANNUAL FUND OPERATING EXPENSES</span><span style="color:#FFFFFF;font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">(Expenses that you pay each year as a percentage of the value</span><span style="color:#FFFFFF;font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">of your investment)</span> | ||
| Fee Waiver or Reimbursement over Assets, Date of Termination | rr_FeeWaiverOrReimbursementOverAssetsDateOfTermination | <span style="font-family:Arial Narrow;font-size:8pt;">2/28/26</span> | ||
| Portfolio Turnover [Heading] | rr_PortfolioTurnoverHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Portfolio Turnover</span> | ||
| Portfolio Turnover [Text Block] | rr_PortfolioTurnoverTextBlock | The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio). A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account. These costs, which are not reflected in annual fund operating expenses or in the Example, affect the Fund’s performance. During the Fund’s most recent fiscal year, the Fund’s portfolio turnover rate was 40% of the average value of its portfolio. | ||
| Portfolio Turnover, Rate | rr_PortfolioTurnoverRate | 40.00% | ||
| Expense Example [Heading] | rr_ExpenseExampleHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">Example</span> | ||
| Expense Example Narrative [Text Block] | rr_ExpenseExampleNarrativeTextBlock | This Example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds. The Example assumes that you invest $10,000 in the Fund for the time periods indicated. The Example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same. Your actual costs may be higher or lower. | ||
| Expense Example by, Year, Caption [Text] | rr_ExpenseExampleByYearCaption | <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">WHETHER OR NOT YOU SELL YOUR SHARES, YOUR COST </span><span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">WOULD BE:</span> | ||
| Strategy [Heading] | rr_StrategyHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">What are the Fund’s main investment strategies?</span> | ||
| Strategy Narrative [Text Block] | rr_StrategyNarrativeTextBlock | Under normal circumstances, the Fund invests at least 80% of its Assets in equity securities and equity-related instruments that are tied economically to emerging markets. “Assets” means net assets, plus the amount of borrowings for investment purposes. Emerging markets include most countries in the world except Australia, Canada, Japan, New Zealand, the United Kingdom, the United States, most of the countries of Western Europe and Hong Kong. The equity securities and equity-related instruments in which the Fund may invest include, but are not limited to, common stock, preferred stock, convertible securities, trust or partner-ship interests, depositary receipts, real estate investment trusts (REITS), privately placed securities, warrants and rights, participation notes or other structured notes, and other instruments that provide economic exposure to one or more equity securities. Certain of the equity securities in which the Fund invests are expected to be issued by companies that rely on variable interest entity (“VIE”) structures. In implementing its strategy, the Fund seeks to construct a portfolio of long holdings that will outperform the Morgan Stanley Capital International (MSCI) Emerging Markets Index (net total return)1 (the Index) over time while maintaining similar risk characteristics, including sector and geographic risks. The Fund primarily invests in securities included within the universe of the Index, however, the Fund may also invest in securities not included within the Index or securities or instruments with similar economic characteristics. The Fund may invest in securities across all market capitalizations, although the Fund may invest a significant portion of its assets in companies of any one particular market capitalization category. Within each sector, the Fund may modestly overweight equity securities that it considers undervalued while modestly under-weighting or not holding equity securities that appear over-valued. By emphasizing investment in equity securities that appear undervalued or fairly valued, the Fund seeks returns that modestly exceed those of the Index over the long term with a modest level of volatility. The Fund may use exchange-traded funds and exchange-traded futures to gain exposure to particular foreign securities or markets and for the efficient management of cash flows. The Fund may invest in securities denominated in any currency and may from time to time hedge a portion of its foreign currency exposure using currency forwards. Securities and equity-related instruments tied economically to an emerging market include: (i) securities of issuers that are organized under the laws of an emerging markets country or that maintain their principal place of business in an emerging markets country; (ii) securities that are traded principally in an emerging market country; (iii) securities of issuers that, during their most recent fiscal year, derived at least 50% of their revenues or profits from goods produced or sold, investments made, or services performed in an emerging markets country or that have at least 50% of their assets in an emerging market country; or (iv) securities or other instruments that expose the Fund to the economic fortunes and risks of one or more emerging market countries. Investment Process: In managing the Fund, the adviser combines fundamental research with a disciplined portfolio construction process. The adviser utilizes proprietary research, risk management techniques and individual security selection in constructing the Fund’s portfolio. In-depth, fundamental research into individual securities is conducted by research analysts who emphasize each issuer’s long-term prospects. This research allows the adviser to rank issuers within each sector group according to what it believes to be their relative value. The adviser will ordinarily overweight securities which it deems to be attractive and underweight or not hold those securities which it believes are unattractive. The adviser may sell a security as its valuations or rankings change or if more attractive investments become available. As part of its investment process, the adviser seeks to assess the impact of environmental, social and governance (ESG) factors on many issuers in the universe in which the Fund may invest. The adviser’s assessment is based on an analysis of key opportunities and risks across industries to seek to identify financially material issues with respect to the Fund’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 the Fund while the Fund may divest or not invest in securities of issuers that may be positively impacted by such factors. | ||
| Risk [Heading] | rr_RiskHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Risks</span> | ||
| Bar Chart and Performance Table [Heading] | rr_BarChartAndPerformanceTableHeading | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Past Performance</span> | ||
| Performance Narrative [Text Block] | rr_PerformanceNarrativeTextBlock | This section provides some indication of the risks of investing in the Fund. The bar chart shows how the performance of the Fund’s Class I Shares has varied from year to year for the past six calendar years. The table shows the average annual total returns for the past one year, five years, and life of the Fund.Performance shown for Class I Shares prior to its inception are based on Class R6 Shares (which are not offered in this prospectus). The actual returns for Class I Shares would have been lower than those shown because Class I Shares have higher expenses than Class R6 Shares. The table compares the Fund’s performance to the performance of the MSCI Emerging Markets Index (net total return). The MSCI Emerging Markets Index does not include the fees and expenses of the mutual funds in the index. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future. Updated performance information is available by visitingwww.jpmorganfunds.com or by calling 1-800-480-4111. Source: MSCI. The MSCI information may only be used for your internal use, may not be reproduced or redisseminated in any form and may not be used as a basis for or a component of any financial instruments or products or indices. None of the MSCI information is intended to constitute investment advice or a recommendation to make (or refrain from making) any kind of investment decision and may not be relied on as such. Historical data and analysis should not be taken as an indication or guarantee of any future performance analysis, forecast, or prediction. The MSCI information is provided on an “as is” basis and the user of this information assumes the entire risk of any use made of this information. MSCI, each of its affiliates and each other person involved in or related to compiling, computing or creating any MSCI information (collectively, the “MSCI Parties”) expressly disclaims all warranties (including, without limitation, any warranties of originality, accuracy, completeness, timeliness, non-infringement, merchantability and fitness for a particular purpose) with respect to this information. Without limiting any of the foregoing, in no event shall any MSCI Party have any liability for any direct, indirect, special, incidental, punitive, consequential (including, without limitation, lost profits) or any other damages. (www.msci.com) | ||
| Performance Information Illustrates Variability of Returns [Text] | rr_PerformanceInformationIllustratesVariabilityOfReturns | <span style="font-family:Arial Narrow;font-size:10pt;">The bar chart shows how the performance of the </span><span style="font-family:Arial Narrow;font-size:10pt;">Fund’s Class I Shares has varied from year to year for the past six calendar years. The table shows the average annual total returns for the past one year, five years, and life of the Fund.</span> | ||
| Performance Availability Phone [Text] | rr_PerformanceAvailabilityPhone | <span style="font-family:Arial Narrow;font-size:10pt;font-style:italic;">1-800-480-4111</span> | ||
| Performance Availability Website Address [Text] | rr_PerformanceAvailabilityWebSiteAddress | <span style="font-family:Arial Narrow;font-size:10pt;font-style:italic;">www.jpmorganfunds.com</span> | ||
| Performance Past Does Not Indicate Future [Text] | rr_PerformancePastDoesNotIndicateFuture | <span style="font-family:Arial Narrow;font-size:10pt;">Past performance (before and after taxes) is </span><span style="font-family:Arial Narrow;font-size:10pt;">not necessarily an indication of how the Fund will perform in the future. </span> | ||
| Bar Chart [Heading] | rr_BarChartHeading | <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:10pt;font-weight:bold;margin-left:0.0pt;">YEAR-BY-YEAR RETURNS — CLASS I SHARES</span> | ||
| Bar Chart Closing [Text Block] | rr_BarChartClosingTextBlock | Best Quarter4th quarter, 202021.17%Worst Quarter1st quarter, 2020-24.22% | ||
| Performance Table Heading | rr_PerformanceTableHeading | <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">AVERAGE ANNUAL TOTAL RETURNS</span><span style="color:#FFFFFF;font-family:Arial Narrow;font-size:7pt;font-weight:bold;margin-left:0.0pt;">(For periods ended December 31, 2024)</span> | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Risk Lose Money [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | You could lose money investing in the Fund. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Risk Not Insured Depository Institution [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Investments in the Fund are not deposits or obligations of, or guaranteed or endorsed by, any bank and are not insured or guaranteed by the FDIC, the Federal Reserve Board or any other government agency. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Foreign Securities and Emerging Markets Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Foreign Securities and Emerging Markets Risk. Investments in foreign issuers and foreign securities (including depositary receipts) are subject to additional risks, including political and economic risks, unstable governments, civil conflicts and war, greater volatility, decreased market liquidity, expropriation and nationalization risks, sanctions or other measures by the United States or other governments, currency fluctuations, higher transaction costs, delayed settlement, possible foreign controls on investment, and less stringent investor protection and disclosure standards of foreign markets. In certain markets where securities and other instruments are not traded “delivery versus payment,” the Fund may not receive timely payment for securities or other instruments it has delivered or receive delivery of securities paid for and may be subject to increased risk that the counterparty will fail to make payments or delivery when due or default completely. Foreign market trading hours, clearance and settlement procedures, and holiday schedules may limit the Fund’s ability to buy and sell securities. Events and evolving conditions in certain economies or markets may alter the risks associated with investments tied to countries or regions that historically were perceived as comparatively stable becoming riskier and more volatile. These risks are magnified in “emerging markets.” Emerging market countries typically have less established market economies than developed countries and may face greater social, economic, regulatory and political uncertainties. In addition, emerging markets typically present greater illiquidity and price volatility concerns due to smaller or limited local capital markets and greater difficulty in determining market valuations of securities due to limited public information on issuers. Certain emerging market countries may be subject to less stringent requirements regarding accounting, auditing, financial reporting and record keeping and therefore, material information related to an investment may not be available or reliable. Additionally, the Fund may have substantial difficulties exercising its legal rights or enforcing a counterparty’s legal obligations in certain jurisdictions outside of the United States, in particular in emerging markets countries, which can increase the risks of loss. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Geographic Focus Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Geographic Focus Risk. The Fund may focus its investments in one or more regions or small groups of countries. As a result, the Fund’s performance may be subject to greater volatility than a more geographically diversified fund. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Depositary Receipts Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Depositary Receipts Risk. The Fund’s investments may take the form of depositary receipts, including unsponsored depositary receipts. Unsponsored depositary receipts may not provide as much information about the underlying issuer and may not carry the same voting privileges as sponsored depositary receipts. Unsponsored depositary receipts are issued by one or more depositaries in response to market demand, but without a formal agreement with the company that issues the underlying securities. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Equity Market Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Equity Market Risk. The price of equity securities may rise or fall because of changes in the broad market or changes in a company’s financial condition, sometimes rapidly or unpredictably. These price movements may result from factors affecting individual companies, sectors or industries selected for the Fund’s portfolio or the securities market as a whole, such as changes in economic or political conditions. When the value of the Fund’s portfolio securities goes down, your investment in the Fund decreases in value. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | General Market Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | General Market Risk. Economies and financial markets throughout the world are becoming increasingly interconnected, which increases the likelihood that events or conditions in one country or region will adversely impact markets or issuers in other countries or regions. Securities in the Fund’s portfolio may underperform in comparison to securities in general financial markets, a particular financial market or other asset classes due to a number of factors, including inflation (or expectations for inflation), deflation (or expectations for deflation), interest rates, global demand for particular products or resources, market instability, financial system instability, debt crises and downgrades, embargoes, tariffs, sanctions and other trade barriers, regulatory events, other governmental trade or market control programs and related geopolitical events. In addition, the value of the Fund’s investments may be negatively affected by the occurrence of global events such as war, terrorism, environmental disasters, natural disasters or events, country instability, and infectious disease epidemics or pandemics. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Smaller Company Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Smaller Company Risk. Investments in securities of smaller companies (mid cap and small cap companies) may be riskier, less liquid, more volatile and more vulnerable to economic, market and industry changes than securities of larger, more established companies. The securities of smaller companies may trade less frequently and in smaller volumes than securities of larger companies. As a result, changes in the price of securities issued by such companies may be more sudden or erratic than the prices of securities of large capitalization companies, especially over the short term. These risks are higher for small cap companies. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Real Estate Securities Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Real Estate Securities Risk. The Fund’s investments in real estate securities, including REITs, are subject to the same risks as direct investments in real estate and mortgages, and their value will depend on the value of the underlying real estate interests. These risks include default, prepayments, changes in value resulting from changes in interest rates and demand for real and rental property, and the management skill and credit-worthiness of REIT issuers. The Fund will indirectly bear its proportionate share of expenses, including management fees, paid by each REIT in which it invests in addition to the expenses of the Fund. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Greater China Region Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Greater China Region Risk. In addition to the risks listed under “Foreign Securities and Emerging Markets Risk,” investments in Mainland China, Hong Kong and Taiwan are subject to significant legal, regulatory, monetary and economic risks, as well as the potential for regional and global conflicts, including actions that are contrary to the interests of the U.S. Investments in Mainland China involve political and legal uncertainties, currency fluctuations and aggressive currency controls, the risk of confiscatory taxation, and nationalization or expropriation of assets, which could adversely affect and significantly diminish the values of the Mainland Chinese companies in which the Fund invests. The Mainland Chinese securities markets are emerging markets characterized by greater price volatility. Mainland China is dominated by the one-party rule of the Communist Party, and the Mainland Chinese government exercises significant control over Mainland China’s economic growth. There is the potential of increased tariffs and restrictions on trade between the United States and Mainland China. An increase in tariffs or trade restrictions, or even the threat of such developments, could lead to a significant reduction in international trade, which could have a negative impact on Mainland Chinese companies and a commensurately negative impact on the Fund. There is also the risk that the U.S. government or other governments may sanction Chinese issuers or otherwise prohibit U.S. persons (such as the Fund) from investing in certain Chinese issuers, which may negatively affect the liquidity and price of their securities. The political reunification of Mainland China and Taiwan, over which Mainland China continues to claim sovereignty, is a highly complex issue. There is the potential for future political, military or economic disturbances that may have an adverse impact on the values of the Fund’s investments in Mainland China and elsewhere, or make certain Fund investments impractical or impossible. Any escalation of hostility between Mainland China and Taiwan would likely have a significant adverse impact on the value and liquidity of the Fund’s investments in both Mainland China and elsewhere, causing substantial investment losses for the Fund. Hong Kong is a Special Administrative Region of the People's Republic of China. Since Hong Kong reverted to Chinese sovereignty in 1997, it has been governed by the Basic Law. Under the Basic Law, Hong Kong was guaranteed a high degree of autonomy in certain matters, including economic matters, until 2047. Attempts by the government of Mainland China to exert greater control over Hong Kong’s economic, political or legal structures or its existing social policy could negatively affect investor confidence in Hong Kong (as has been the case previously during certain periods), which in turn could negatively affect markets and business performance. Chinese operating companies sometimes rely on VIE structures to raise capital from non-Chinese investors, even though such arrangements are not formally recognized under Chinese law. In a VIE structure, a Mainland China-based operating company establishes an entity (typically offshore) that enters into service and other contracts (such as powers of attorney, equal pledge agreements and other services or business cooperation agreements) with the Mainland Chinese company designed to provide economic exposure to the company. The offshore entity then issues exchange-traded shares that are sold to the public, including non-Chinese investors (such as the Fund). Shares of the offshore entity are not equity ownership interests in the Mainland Chinese operating company and therefore the ability of the offshore entity to control the activities at the Mainland Chinese company are limited and the Mainland Chinese company may engage in activities that negatively impact investment value. Under a VIE structure, the Fund will typically have little or no ability to influence the Mainland China-based operating company through proxy voting or other means because it is not a Mainland Chinese company owner/shareholder. The VIE structure is designed to provide the offshore entity (and in turn, investors in the entity) with economic exposure to the Mainland Chinese company that replicates equity ownership, without actual equity ownership of the Mainland Chinese operating company. The VIE contractual arrangements permit the VIE structure to consolidate its financial statements with those of the underlying Chinese companies. VIE structures are used due to Mainland Chinese government prohibitions on foreign ownership of companies in certain industries and it is not clear that the contracts are enforceable or that the structures will otherwise work as intended. Intervention by the Mainland Chinese government with respect to VIE structures could adversely affect the Mainland Chinese operating company’s performance, the enforceability of the offshore entity’s contractual arrangements with the Mainland Chinese company and the value of the offshore entity’s shares. If this were to occur, the market value of the Fund’s associated portfolio holdings would likely fall, causing substantial investment losses for the Fund. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Derivatives Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Derivatives Risk. Derivatives, including futures and participation notes, may be riskier than other types of investments because they may be more sensitive to changes in economic or market conditions than other types of investments and could result in losses that significantly exceed the Fund’s original investment. Many derivatives create leverage thereby causing the Fund to be more volatile than it would be if it had not used derivatives. Certain derivatives also expose the Fund to counterparty risk (the risk that the derivative counterparty will not fulfill its contractual obligations), including credit risk of the derivative counterparty. Certain derivatives are synthetic instruments that attempt to replicate the performance of certain reference assets. With regard to such derivatives, the Fund does not have a claim on the reference assets and is subject to enhanced counterparty risk. Derivatives may not perform as expected, so the Fund may not realize the intended benefits. When used for hedging, the change in value of a derivative may not correlate as expected with the security or other risk being hedged. In addition, given their complexity, derivatives may expose the Fund to risks of mispricing or improper valuation. Derivatives also can expose the Fund to derivative liquidity risk, which includes the risks involving the liquidity demands that derivatives can create to make payments of margin, collateral or settlement payments to counterparties, legal risk, which includes the risk of loss resulting from insufficient or unenforceable contractual documentation, insufficient capacity or authority of a Fund’s counterparty and operational risk, which includes documentation or settlement issues, system failures, inadequate controls and human error. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Convertible Securities Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Convertible Securities Risk. The value of convertible securities tends to decline as interest rates rise and, because of the conversion feature, tends to vary with fluctuations in the market value of the underlying securities. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Privately Placed Securities Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Privately Placed Securities Risk. Privately placed securities generally are less liquid than publicly traded securities and the Fund may not always be able to sell such securities without experiencing delays in finding buyers or reducing the sale price for such securities. The disposition of some of the securities held by the Fund may be restricted under federal securities laws. As a result, the Fund may not be able to dispose of such investments at a time when, or at a price at which, it desires to do so and may have to bear expenses of registering these securities, if necessary. These securities may also be difficult to value. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Structured Instrument Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Structured Instrument Risk. Instruments that have similar economic characteristics to equity securities, such as participation notes or other structured instruments (“structured instruments”), are structured, synthetic instruments that generally attempt to replicate the performance of a particular equity or market (“reference assets”). There can be no assurance that structured instruments will trade at the same price or have the same value as the reference assets. In addition, structured instruments may be subject to transfer restrictions and may be illiquid or thinly traded and less liquid than other types of securities, which may also expose the Fund to risks of mispricing or improper valuation. Structured instruments typically are not secured by the reference assets and are therefore dependent solely upon the counterparty for repayment. Structured instruments also have the same risks associated with a direct investment in the reference assets. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Currency Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Currency Risk. Changes in foreign currency exchange rates will affect the value of the Fund’s securities and may affect the price of the Fund’s shares. Generally, when the value of the U.S. dollar rises in value relative to a foreign currency, an investment impacted by that currency loses value because that currency is worth less in U.S. dollars. Currency exchange rates may fluctuate significantly over short periods of time for a number of reasons, including changes in interest rates. Devaluation of a currency by a country’s government or banking authority also will have a significant impact on the value of any investments denominated in that currency. Currency markets generally are not as regulated as securities markets, may be riskier than other types of investments and may increase the volatility of the Fund. Although the Fund may attempt to hedge some or all of its currency exposure into the U.S. dollar, it may not be successful in reducing the effects of currency fluctuations. The Fund may also hedge from one foreign currency to another. In addition, the Fund’s use of currency hedging may not be successful, including due to delays in placing trades and other operational limitations, and the use of such strategies may lower the Fund’s potential returns. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Industry and Sector Focus Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Industry and Sector Focus Risk. At times, the Fund may increase the relative emphasis of its investments in a particular industry or sector. The prices of securities of issuers in a particular industry or sector may be more susceptible to fluctuations due to changes in economic or business conditions, government regulations, availability of basic resources or supplies, contagion risk within a particular industry or sector or to other industries or sectors, or other events that affect that industry or sector more than securities of issuers in other industries and sectors. To the extent that the Fund increases the relative emphasis of its investments in a particular industry or sector, the value of the Fund’s shares may fluctuate in response to events affecting that industry or sector. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Exchange Traded Fund ETF and Other Investment Company Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Exchange-Traded Fund (ETF) and Other Investment Company Risk. The Fund may invest in shares of other investment companies and ETFs. Shareholders bear both their proportionate share of the Fund’s expenses and similar expenses of the underlying investment company or ETF when the Fund invests in shares of another investment company or ETF. The Fund is subject to the risks associated with the ETF or investment company’s investments. The price and movement of an ETF designed to track an index may not track the index and may result in a loss. In addition, ETFs and investment companies may trade at a price above (premium) or below (discount) their net asset value, especially during periods of significant market volatility or stress, causing investors to pay significantly more or less than the value of the ETF’s underlying portfolio. Certain ETFs traded on exchanges may be thinly traded and experience large spreads between the “ask” price quoted by a seller and the “bid” price offered by a buyer. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Transactions Risk [Member] | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Risk [Text Block] | rr_RiskTextBlock | Transactions Risk. The Fund could experience a loss and its liquidity may be negatively impacted when selling securities to meet redemption requests. The risk of loss increases if the redemption requests are unusually large or frequent or occur in times of overall market turmoil or declining prices. Similarly, large purchases of Fund shares may adversely affect the Fund’s performance to the extent that the Fund is delayed in investing new cash and is required to maintain a larger cash position than it ordinarily would. | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Class I | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| Management Fees | rr_ManagementFeesOverAssets | 0.25% | ||
| Distribution (Rule 12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | none | ||
| Service Fees | rr_Component1OtherExpensesOverAssets | 0.25% | ||
| Remainder of Other Expenses | rr_Component2OtherExpensesOverAssets | 0.18% | ||
| Other Expenses | rr_OtherExpensesOverAssets | 0.43% | ||
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 0.68% | ||
| Fee Waivers and/or Expense Reimbursements | rr_FeeWaiverOrReimbursementOverAssets | (0.23%) | [1] | |
| Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements | rr_NetExpensesOverAssets | 0.45% | [1] | |
| 1 Year | rr_ExpenseExampleYear01 | $ 46 | ||
| 3 Years | rr_ExpenseExampleYear03 | 194 | ||
| 5 Years | rr_ExpenseExampleYear05 | 356 | ||
| 10 Years | rr_ExpenseExampleYear10 | $ 825 | ||
| 2019 | rr_AnnualReturn2019 | 21.25% | ||
| 2020 | rr_AnnualReturn2020 | 18.42% | ||
| 2021 | rr_AnnualReturn2021 | (3.38%) | ||
| 2022 | rr_AnnualReturn2022 | (21.47%) | ||
| 2023 | rr_AnnualReturn2023 | 8.79% | ||
| 2024 | rr_AnnualReturn2024 | 6.36% | ||
| Highest Quarterly Return, Label | rr_HighestQuarterlyReturnLabel | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span> | ||
| Highest Quarterly Return, Date | rr_BarChartHighestQuarterlyReturnDate | Dec. 31, 2020 | ||
| Highest Quarterly Return | rr_BarChartHighestQuarterlyReturn | 21.17% | ||
| Lowest Quarterly Return, Label | rr_LowestQuarterlyReturnLabel | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter</span> | ||
| Lowest Quarterly Return, Date | rr_BarChartLowestQuarterlyReturnDate | Mar. 31, 2020 | ||
| Lowest Quarterly Return | rr_BarChartLowestQuarterlyReturn | (24.22%) | ||
| 1 Year | rr_AverageAnnualReturnYear01 | 6.36% | ||
| 5 Years | rr_AverageAnnualReturnYear05 | 0.78% | ||
| Life of Fund since | rr_AverageAnnualReturnSinceInception | 3.88% | ||
| Inception Date | rr_AverageAnnualReturnInceptionDate | Dec. 11, 2018 | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Return After Taxes on Distributions | Class I | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| 1 Year | rr_AverageAnnualReturnYear01 | 5.85% | ||
| 5 Years | rr_AverageAnnualReturnYear05 | 0.14% | ||
| Life of Fund since | rr_AverageAnnualReturnSinceInception | 3.29% | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class I | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| 1 Year | rr_AverageAnnualReturnYear01 | 4.24% | ||
| 5 Years | rr_AverageAnnualReturnYear05 | 0.64% | ||
| Life of Fund since | rr_AverageAnnualReturnSinceInception | 3.04% | ||
| I Shares | JPMorgan Emerging Markets Research Enhanced Equity Fund | MSCI EMERGING MARKETS INDEX (Net Total Return)(Reflects No Deduction for Fees, Expenses, or Taxes) | ||||
| Risk Return Abstract | rr_RiskReturnAbstract | |||
| 1 Year | rr_AverageAnnualReturnYear01 | 7.50% | ||
| 5 Years | rr_AverageAnnualReturnYear05 | 1.70% | ||
| Life of Fund since | rr_AverageAnnualReturnSinceInception | 4.33% | ||
| ||||