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Risk Return Abstract rr_RiskReturnAbstract  
Registrant Name dei_EntityRegistrantName JPMORGAN TRUST IV
Prospectus Date rr_ProspectusDate Mar. 01, 2025
A C I Shares | JPMorgan International Hedged 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: A/JIHAX; C/JIHCX; I/JIHIX</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 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 tables and examples below. You may qualify for sales charge discounts on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least $50,000 in the J.P. Morgan Funds. More information about these and other discounts is available from your financial intermediary and in “Investing with J.P. Morgan Funds — SALES CHARGES AND FINANCIAL INTERMEDIARY COMPENSATION” on page 89 and in “Financial Intermediary-Specific Sales Charge Waivers” in Appendix A of the prospectus and in “PURCHASES, REDEMPTIONS AND EXCHANGES” in Appendix A to Part II of the Statement of Additional Information.
Shareholder Fees Caption [Text] rr_ShareholderFeesCaption <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">SHAREHOLDER FEES </span><span style="color:#FFFFFF;font-family:Arial Narrow;font-size:8pt;font-weight:bold;margin-left:0.0pt;">(Fees paid directly from your investment)</span>
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 27% of the average value of its portfolio.
Portfolio Turnover, Rate rr_PortfolioTurnoverRate 27.00%
Expense Breakpoint Discounts [Text] rr_ExpenseBreakpointDiscounts <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">You may qualify for sales charge discounts </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">on purchases of Class A Shares if you and your family invest, or agree to invest in the future, at least </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">$50,000</span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;"> in the J.P. Morgan Funds.</span>
Expense Breakpoint, Minimum Investment Required [Amount] rr_ExpenseBreakpointMinimumInvestmentRequiredAmount $ 50,000
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;">IF YOU SELL YOUR SHARES, YOUR COST WOULD BE:</span>
Expense Example, No Redemption, By Year, Caption [Text] rr_ExpenseExampleNoRedemptionByYearCaption <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:11pt;font-weight:bold;margin-left:0.0pt;">IF YOU DO NOT 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 The Fund seeks to provide capital appreciation through participation in international 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 in equity securities. “Assets” means net assets plus the amount of borrowings for investment purposes. The Fund primarily invests in equity securities of foreign companies across all market capitalizations, including foreign subsidiaries of U.S. companies. The equity securities in which the Fund may invest include, but are not limited to, common stock, preferred stock, depositary receipts, privately placed securities and real estate investment trusts. In implementing its strategy, the Fund constructs a portfolio of long holdings that seeks to outperform the Morgan Stanley Capital International (MSCI) Europe, Australasia, Far East (EAFE) Index1 (net total return) (the Index) over time while maintaining similar risk characteristics, including sector and geographic risk. 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. Within each sector, the Fund may modestly overweight equity securities that it considers undervalued while modestly underweighting or not holding equity securities that appear overvalued. By emphasizing investment in equity securities that appear undervalued or fairly valued, the Fund seeks to constitute a portfolio of long holdings with returns that modestly exceed those of the Index over the long term with a modest level of volatility.The Fund’s options overlay strategy is intended to provide the Fund with downside protection, while foregoing some upside potential. The Fund will also systematically purchase and sell exchange traded put options and sell exchange traded call options, employing an option overlay known as a “Put/Spread Collar” strategy. A call option gives the buyer the right to buy, and obligates the seller of the option to sell, a security at a specified price at a future date. A put option gives the buyer the right to sell, and obligates the seller of the option to buy, a security at a specified price at a future date. The options may be based on the Index or on exchange-traded funds (ETFs) that seek to provide investment returns linked to the performance of the Index. The combination of the diversified portfolio of equity securities, the downside protection from put options and the income from the index call options is intended to provide the Fund with a portion of the returns associated with its long 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 (defined as three to five years) relative to the Index with lower volatility than traditional long-only equity strategies. 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. An issuer of a security will be deemed to be located in a particular country if: (i) the principal trading market for the security is in such country, (ii) the issuer is organized under the laws of such country or (iii) the issuer derives at least 50% of its revenues or profits from such country or has at least 50% of its total assets situated in such country. The Fund constructs a Put/Spread Collar by buying a put option on the Index or an ETF at a higher strike price and writing (or selling) a put option on the same instrument at a relatively lower strike price, resulting in what is known as a put option spread, while simultaneously selling an Index or ETF call option. The Fund may elect to construct additional Put/Spread Collars if the size of the Fund increases, either through purchases or appreciation. A put option spread seeks to protect the Fund against a decline in price, but only to the extent of the difference between the strike prices of the put option purchased and the put option sold. Entering into put option spreads is typically less expensive than a strategy of only purchasing put options and may benefit the Fund in a flat to upwardly moving market by reducing the cost of the downside protection; the downside protection of the put option spread, however, is limited as compared to just owning a put option. The premiums received from writing call options are intended to provide income which substantially offsets the cost of the put option spread, but writing the call options also reduces the Fund’s ability to profit from increases in the value of its equity portfolio because in rising markets the call option will be exercised once the market price rises to the option’s strike price. In addition to the use of the Put/Spread Collar strategy described above, the Fund may use exchange-traded futures, primarily futures on 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 and efficient management of cash flows. Investment Process — Long Portfolio: In constructing its long portfolio, 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. 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. 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. In managing the Fund, the adviser will seek to help manage risk in the Fund’s portfolio by investing in issuers in at least three foreign countries. However, the Fund may invest a substantial part of its assets in just one country. Investment Process — Options Overlay Strategy: To implement the Put/Spread Collar strategy, the adviser utilizes exchange traded equity options based either on the Index or on ETFs that seek to provide investment returns linked to the performance of the Index. The Put/Spread Collar is constructed by buying a put option at a higher strike price while writing a put option at a relatively lower strike price and simultaneously selling a call option that substantially offsets the cost of the put option spread. The Put/Spread Collar strategy is an actively managed process and is designed to provide a continuous market hedge for the portfolio. The put option spread is generally maintained at a level whereby the Fund is protected from a decrease in the market of five to twenty percent. The options are reset on at least a quarterly basis to seek to better capitalize on current market conditions and opportunities while seeking to provide predictable returns in all market cycles.
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 the performance of the Fund’s Class I Shares has varied from year to year for the past five years. The table shows the average annual total returns for the past one year and life of the Fund. The table compares the Fund’s performance to the performance of the MSCI EAFE Index (net total return), and ICE BofA 3-Month US Treasury Bill Index. The MSCI EAFE Index (net total return), and ICE BofA 3-Month US Treasury Bill 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 visiting www.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) SOURCE ICE DATA INDICES, LLC (“ICE DATA”), IS USED WITH PERMISSION. ICE® IS A REGISTERED TRADEMARK OF ICE DATA OR ITS AFFILIATES AND BOFA® IS A REGISTERED TRADEMARK OF BANK OF AMERICA CORPORATION LICENSED BY BANK OF AMERICA CORPORATION AND ITS AFFILIATES (“BOFA”) AND MAY NOT BE USED WITHOUT BOFA’S PRIOR WRITTEN APPROVAL. ICE DATA, ITS AFFILIATES AND THEIR RESPECTIVE THIRD PARTY SUPPLIERS DISCLAIM ANY AND ALL WARRANTIES AND REPRESENTATIONS, EXPRESS AND/OR IMPLIED, INCLUDING ANY WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE, INCLUDING THE INDICES, INDEX DATA AND ANY DATA INCLUDED IN, RELATED TO, OR DERIVED THEREFROM. NEITHER ICE DATA, ITS AFFILIATES NOR THEIR RESPECTIVE THIRD PARTY SUPPLIERS SHALL BE SUBJECT TO ANY DAMAGES OR LIABILITY WITH RESPECT TO THE ADEQUACY, ACCURACY, TIMELINESS OR COMPLETENESS OF THE INDICES OR THE INDEX DATA OR ANY COMPONENT THEREOF, AND THE INDICES AND INDEX DATA AND ALL COMPONENTS THEREOF ARE PROVIDED ON AN “AS IS” BASIS AND YOUR USE IS AT YOUR OWN RISK. ICE DATA, ITS AFFILIATES AND THEIR RESPECTIVE THIRD PARTY SUPPLIERS DO NOT SPONSOR, ENDORSE, OR RECOMMEND THE ADVISER, OR ANY OF ITS PRODUCTS OR SERVICES.
Performance Information Illustrates Variability of Returns [Text] rr_PerformanceInformationIllustratesVariabilityOfReturns <span style="font-family:Arial Narrow;font-size:10pt;">The bar chart shows the performance of the Fund’s </span><span style="font-family:Arial Narrow;font-size:10pt;">Class I Shares has varied from year to year for the past five years. The table shows the average annual total returns for the past one year 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 </span><span style="font-family:Arial Narrow;font-size:10pt;">after taxes) is 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, 20227.88%Worst Quarter1st quarter, 2020-13.44%
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>
Performance Table Uses Highest Federal Rate rr_PerformanceTableUsesHighestFederalRate <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.</span>
Performance Table Not Relevant to Tax Deferred rr_PerformanceTableNotRelevantToTaxDeferred <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.</span>
Performance Table Narrative rr_PerformanceTableNarrativeTextBlock After-tax returns are calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.Actual after-tax returns depend on the investor’s tax situation and may differ from those shown. The after-tax returns shown are not relevant to investors who hold their shares through tax-deferred arrangements such as 401(k) plans or individual retirement accounts.
A C I Shares | JPMorgan International Hedged Equity Fund | Risk Lose Money [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock You could lose money investing in the Fund.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged Equity Fund | Strategy Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Strategy Risk. The Fund’s investment strategies may not always provide greater market protection than other equity instruments particularly in rising equity markets when the Fund is expected to underperform traditional long-only 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.
A C I Shares | JPMorgan International Hedged Equity Fund | Options Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Options Risk. The value of the Fund’s positions in Index options or options on ETFs will fluctuate in response to changes in the value of the underlying index. Writing index call options or options on ETFs can reduce equity market risk, but it limits the opportunity to profit from an increase in the market value of stocks in exchange for upfront cash at the time of selling the call option. The Fund also risks losing all or part of the cash paid for purchasing put options. Unusual market conditions or the lack of a ready market for any particular option at a specific time may reduce the effectiveness of the Fund’s option strategies, and for these and other reasons, the Fund’s option strategies may not reduce the Fund’s volatility to the extent desired and could result in losses.
A C I Shares | JPMorgan International Hedged Equity Fund | Derivatives Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Derivatives Risk. Derivatives, including options and futures, may be riskier than other types of investments and may increase the volatility of the Fund. Derivatives may be sensitive to changes in economic and market conditions and may create leverage, which could result in losses that significantly exceed the Fund’s original investment. Certain derivatives also expose the Fund to counterparty risk, which is the risk that the derivative counterparty will not fulfill its contractual obligations (and includes credit risk associated with the 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 the Fund’s counterparty and operational risk, which includes documentation or settlement issues, system failures, inadequate controls and human error.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged Equity Fund | European Market Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock European Market Risk. The Fund’s performance will be affected by political, social and economic conditions in the various countries in which it invests in Europe and in Europe more generally, such as growth of the economic output (the gross national product), the rate of inflation, the rate at which capital is reinvested into European economies, the success of governmental actions to reduce budget deficits, the resource self-sufficiency of European countries and interest and monetary exchange rates between European countries. European financial markets may experience volatility due to concerns about high government debt levels, credit rating downgrades, rising unemployment, the future of the euro as a common currency, possible restructuring of government debt and other government measures responding to those concerns, and fiscal and monetary controls imposed on member countries of the European Union.
A C I Shares | JPMorgan International Hedged Equity Fund | Japan Risk [Member]  
Risk Return Abstract rr_RiskReturnAbstract  
Risk [Text Block] rr_RiskTextBlock Japan Risk. The Japanese economy may be subject to economic, political and social instability, which could have a negative impact on Japanese securities. In the past, Japan’s economic growth rate has remained relatively low, and it may remain low in the future. Furthermore, the Japanese economic growth rate could be impacted by Bank of Japan’s monetary policies, rising interest rates, tax increases, budget deficits, consumer confidence and volatility in the Japanese yen. At times, the Japanese economy has been adversely impacted by government intervention and protectionism, changes in its labor market, and an unstable financial services sector. International trade, government support of the financial services sector and other troubled sectors, government policy, natural disasters, an aging demographic and declining population and/or geopolitical developments associated with actual or potential conflicts with one or more countries in Asia could significantly affect the Japanese economy. Strained foreign relations with neighboring countries (China, South Korea, North Korea and Russia) may not only negatively impact the Japanese economy, but also the geographic region as well as globally. A significant portion of Japan’s trade is conducted with developing nations and can be affected by conditions in these nations or by currency fluctuations. Japan is an island state with few natural resources and limited land area and is reliant on imports for its commodity needs. Any fluctuations or shortages in the commodity markets could have a negative impact on the Japanese economy. In addition, Japan's economy has in the past and could in the future be significantly impacted by natural disasters.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged 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.
A C I Shares | JPMorgan International Hedged Equity Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price of Shares rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice 5.25%
Maximum Deferred Sales Charge (Load) as a % of the Original Cost of Shares rr_MaximumDeferredSalesChargeOverOther none [1]
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution (Rule 12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.25%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Remainder of Other Expenses rr_Component2OtherExpensesOverAssets 0.33%
Other Expenses rr_OtherExpensesOverAssets 0.58%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.08%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.23%) [2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements rr_NetExpensesOverAssets 0.85% [2]
1 Year rr_ExpenseExampleYear01 $ 607
3 Years rr_ExpenseExampleYear03 829
5 Years rr_ExpenseExampleYear05 1,068
10 Years rr_ExpenseExampleYear10 1,753
1 Year rr_ExpenseExampleNoRedemptionYear01 607
3 Years rr_ExpenseExampleNoRedemptionYear03 829
5 Years rr_ExpenseExampleNoRedemptionYear05 1,068
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,753
1 Year rr_AverageAnnualReturnYear01 (0.71%)
5 Years rr_AverageAnnualReturnYear05 1.46%
Life of Fund since rr_AverageAnnualReturnSinceInception 2.36%
A C I Shares | JPMorgan International Hedged Equity Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price of Shares rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) as a % of the Original Cost of Shares rr_MaximumDeferredSalesChargeOverOther 1.00%
Management Fees rr_ManagementFeesOverAssets 0.25%
Distribution (Rule 12b-1) Fees rr_DistributionAndService12b1FeesOverAssets 0.75%
Service Fees rr_Component1OtherExpensesOverAssets 0.25%
Remainder of Other Expenses rr_Component2OtherExpensesOverAssets 0.48%
Other Expenses rr_OtherExpensesOverAssets 0.73%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 1.73%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.38%) [2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements rr_NetExpensesOverAssets 1.35% [2]
1 Year rr_ExpenseExampleYear01 $ 237
3 Years rr_ExpenseExampleYear03 508
5 Years rr_ExpenseExampleYear05 903
10 Years rr_ExpenseExampleYear10 1,837
1 Year rr_ExpenseExampleNoRedemptionYear01 137
3 Years rr_ExpenseExampleNoRedemptionYear03 508
5 Years rr_ExpenseExampleNoRedemptionYear05 903
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 1,837
1 Year rr_AverageAnnualReturnYear01 3.22%
5 Years rr_AverageAnnualReturnYear05 2.04%
Life of Fund since rr_AverageAnnualReturnSinceInception 2.80%
A C I Shares | JPMorgan International Hedged Equity Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price of Shares rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice none
Maximum Deferred Sales Charge (Load) as a % of the Original Cost of Shares rr_MaximumDeferredSalesChargeOverOther none
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 0.32%
Other Expenses rr_OtherExpensesOverAssets 0.57%
Total Annual Fund Operating Expenses rr_ExpensesOverAssets 0.82%
Fee Waivers and/or Expense Reimbursements rr_FeeWaiverOrReimbursementOverAssets (0.22%) [2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements rr_NetExpensesOverAssets 0.60% [2]
1 Year rr_ExpenseExampleYear01 $ 61
3 Years rr_ExpenseExampleYear03 240
5 Years rr_ExpenseExampleYear05 433
10 Years rr_ExpenseExampleYear10 993
1 Year rr_ExpenseExampleNoRedemptionYear01 61
3 Years rr_ExpenseExampleNoRedemptionYear03 240
5 Years rr_ExpenseExampleNoRedemptionYear05 433
10 Years rr_ExpenseExampleNoRedemptionYear10 $ 993
2020 rr_AnnualReturn2020 (1.76%)
2021 rr_AnnualReturn2021 10.02%
2022 rr_AnnualReturn2022 (9.52%)
2023 rr_AnnualReturn2023 11.88%
2024 rr_AnnualReturn2024 5.00%
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, 2022
Highest Quarterly Return rr_BarChartHighestQuarterlyReturn 7.88%
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 (13.44%)
1 Year rr_AverageAnnualReturnYear01 5.00%
5 Years rr_AverageAnnualReturnYear05 2.81%
Life of Fund since rr_AverageAnnualReturnSinceInception 3.58%
Inception Date rr_AverageAnnualReturnInceptionDate Mar. 15, 2019
A C I Shares | JPMorgan International Hedged Equity Fund | Return After Taxes on Distributions | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 4.44%
5 Years rr_AverageAnnualReturnYear05 2.37%
Life of Fund since rr_AverageAnnualReturnSinceInception 3.15%
A C I Shares | JPMorgan International Hedged Equity Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.59%
5 Years rr_AverageAnnualReturnYear05 2.28%
Life of Fund since rr_AverageAnnualReturnSinceInception 2.89%
A C I Shares | JPMorgan International Hedged Equity Fund | MSCI EAFE INDEX (Net Total Return)(Reflects No Deduction for Fees, Expenses, or Taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 3.82%
5 Years rr_AverageAnnualReturnYear05 4.73%
Life of Fund since rr_AverageAnnualReturnSinceInception 5.87%
A C I Shares | JPMorgan International Hedged Equity Fund | ICE BOFA 3-MONTH US TREASURY BILL INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)  
Risk Return Abstract rr_RiskReturnAbstract  
1 Year rr_AverageAnnualReturnYear01 5.25%
5 Years rr_AverageAnnualReturnYear05 2.47%
Life of Fund since rr_AverageAnnualReturnSinceInception 2.44%
[1] For purchases under $1 million.
[2] The Fund’s adviser and/or its affiliates have contractually agreed to waive fees and/or reimburse expenses to the extent Total Annual Fund Operating Expenses (excluding acquired fund fees and expenses, other than certain money market fund fees as described below, dividend and interest expenses related to short sales, interest, taxes, expenses related to litigation and potential litigation, expenses related to trustee elections, and extraordinary expenses) exceed 0.85%, 1.35% and 0.60% of the average daily net assets of Class A, Class C and Class I Shares, respectively. The Fund may invest in one or more money market funds advised by the adviser or its affiliates (affiliated money market funds). The Fund’s adviser, shareholder servicing agent and/or administrator have contractually agreed to waive fees and/or reimburse expenses in an amount sufficient to offset the respective net fees each collects from the affiliated money market funds on the Fund’s investment in such money market funds. These waivers are in effect through 2/28/26, at which time it will be determined whether such waivers will be renewed or revised. To the extent that the Fund engages in securities lending, affiliated money market fund fees and expenses resulting from the Fund’s investment of cash received from securities lending borrowers are not included in Total Annual Fund Operating Expenses and therefore, the above waivers do not apply to such investments.