Label	Element	Value
Risk Return Abstract	rr_RiskReturnAbstract
Registrant Name	dei_EntityRegistrantName	JPMORGAN TRUST I
Prospectus Date	rr_ProspectusDate	Mar. 01, 2023
A C I Shares | JPMorgan Tax Aware Real Return Fund
Risk Return Abstract	rr_RiskReturnAbstract
Risk/Return [Heading]	rr_RiskReturnHeading	<span style="color:#000000;font-family:Arial;font-size:11pt;font-weight:bold;">Class/Ticker: A/TXRAX; C/TXRCX; I/TXRIX</span>
Objective [Heading]	rr_ObjectiveHeading	<span style="color:#000000;font-family:Arial;font-size:11pt;font-weight:bold;">What is the goal of the Fund?</span>
Objective, Primary [Text Block]	rr_ObjectivePrimaryTextBlock	The Fund seeks to maximize after-tax inflation protected return.
Expense [Heading]	rr_ExpenseHeading	<span style="color:#000000;font-family:Arial;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. 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 $100,000 in 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 32 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;font-size:8pt;">2/</span><span style="font-family:Arial;font-size:8pt;">29/24</span>
Portfolio Turnover [Heading]	rr_PortfolioTurnoverHeading	<span style="color:#000000;font-family:Arial;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 68% of the average value of its portfolio.
Portfolio Turnover, Rate	rr_PortfolioTurnoverRate	68.00%
Expense Footnotes [Text Block]	rr_ExpenseFootnotesTextBlock	“Acquired Fund Fees and Expenses” are expenses incurred indirectly by the Fund through its ownership of shares in other investment companies, including affiliated money market funds, other mutual funds, exchange-traded funds and business development companies. The impact of Acquired Fund Fees and Expenses is included in the total returns of the Fund. Acquired Fund Fees and Expenses are not direct costs of the Fund, are not used by the Fund to calculate its net asset value per share and are not included in the calculation of the ratio of expenses to average net assets shown in the Financial Highlights section of the Fund’s prospectus.
Expense Breakpoint Discounts [Text]	rr_ExpenseBreakpointDiscounts	<span style="font-family:Arial;font-size:10pt;">You may qualify for sales charge discounts </span><span style="font-family:Arial;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="font-family:Arial;font-size:10pt;">100,000</span><span style="font-family:Arial;font-size:10pt;"> in J.P. Morgan Funds. </span>
Expense Breakpoint, Minimum Investment Required [Amount]	rr_ExpenseBreakpointMinimumInvestmentRequiredAmount	$ 100,000
Expenses Not Correlated to Ratio Due to Acquired Fund Fees [Text]	rr_ExpensesNotCorrelatedToRatioDueToAcquiredFundFees	<span style="color:#000000;font-family:Arial;font-size:10pt;">Acquired </span><span style="color:#000000;font-family:Arial;font-size:10pt;">Fund Fees and Expenses are not direct costs of the Fund, are not used by the Fund to calculate its net asset value per share and are not included in the calculation of the ratio of expenses to average net assets shown in the Financial Highlights section of the Fund’s prospectus.</span>
Expense Example [Heading]	rr_ExpenseExampleHeading	<span style="color:#000000;font-family:Arial;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 are equal to the total annual fund operating expenses after fee waivers and expense reimbursements shown in the fee table through 2/29/24 and total annual fund operating expenses thereafter. 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;font-size:11pt;font-weight:bold;">What are the Fund’s main investment strategies?</span>
Strategy Narrative [Text Block]	rr_StrategyNarrativeTextBlock	The Fund is designed to protect after-tax return by, under normal circumstances, primarily investing in a portfolio of municipal obligations whose interest payments are excluded from federal income taxes. The Fund is also designed to maximize inflation-protected return, which means maximizing the “real return.” Real Return is the total return of a security less the actual rate of inflation. Because of the limited supply of inflation-protected municipal securities, the Fund seeks to synthetically create inflation protection by investing in a combination of conventional (i.e., non-inflation protected) municipal securities and inflation-linked derivatives such as Non-Seasonally Adjusted Consumer Price Index for all Urban Consumers (CPI-U) swaps. The adviser may use other strategies to achieve the Fund’s objective including investments in other types of securities which provide after-tax return and direct investments in inflation-linked securities such as Treasury Inflation Protected Securities (TIPS) and municipal inflation-linked securities, if available.Derivatives, which are instruments that have a value based on another instrument, exchange rate or index, may also be used as substitutes for securities in which the Fund may invest. As part of its principal investment strategy, the Fund will invest substantially in swaps in which the Fund receives inflation-linked payments that provide inflation protection. In addition, the Fund may also use swaps, including interest rate swaps, and futures for hedging and non-hedging purposes.The Fund also may invest in taxable debt securities, including but not limited to, asset-backed and mortgage-related securities, U.S. government and agency securities, domestic corporate bonds and money market instruments and repurchase agreements. The Fund may also invest in repurchase agreements.The average weighted maturity of the Fund’s portfolio will be between three and twelve years. Average weighted maturity is the average of all the current maturities (that is, the term of the securities) of the individual bonds in a Fund calculated so as to count most heavily those securities with the highest dollar value. Average weighted maturity is important to investors as an indication of a Fund’s sensitivity to changes in interest rates. Usually, the longer the average weighted maturity, the more fluctuation in share price you can expect.The Fund will invest primarily in securities that, at the time of purchase, are rated as investment grade by Moody’s Investors Service Inc. (Moody’s), Standard & Poor’s Corporation (S&P), or Fitch Rating (Fitch), meaning that such securities will carry a minimum rating of Baa3, BBB–, or BBB–, respectively or the equivalent by another national rating organization, or are unrated but deemed by the adviser to be of comparable quality. No more than 20% of total assets may be invested in securities below investment grade (also known as junk bonds). A “junk bond” is a debt security that is rated below investment grade. Junk bonds also include unrated securities that the adviser believes to be of comparable quality to debt securities that are rated below investment grade. Junk bonds are also called “high yield bonds” and “non-investment grade bonds.” These securities generally are rated in the fifth or lower rating categories (for example, BB+ or lower by S&P and Ba1 or lower by Moody’s). These securities generally offer a higher yield than investment grade securities, but involve a high degree of risk. A security’s quality is determined at the time of purchase and securities that are rated investment grade or the unrated equivalent may be downgraded or decline in credit quality such that subsequently they would be deemed to be below investment grade. If the quality of an investment grade security is downgraded subsequent to purchase to below investment grade, the Fund may continue to hold the security.The Fund seeks to minimize shareholders’ tax liability in connection with the Fund’s distribution of realized capital gain by minimizing the net gains available for distribution. As part of its tax aware strategy, the Fund typically sells securities when the anticipated performance benefit justifies the resulting gain. This strategy often includes minimizing the sale of securities with large unrealized gain, holding securities long enough to avoid short-term capital gains taxes, selling securities with a higher cost basis first and offsetting capital gains realized in one security by selling another security at a capital loss. In addition, the Fund seeks to minimize distributions that are taxed as ordinary income.Investment Process: The adviser buys and sells securities and investments for the Fund based on its view of individual securities and sectors. Taking a long-term approach, the adviser looks for individual fixed income investments that it believes will perform well over market cycles. The adviser is value oriented and makes decisions to purchase and sell individual securities and instruments after performing a risk/reward analysis that includes an evaluation of interest rate risk, credit risk, duration, liquidity and the complex legal and technical structure of the transaction. As part of its investment process, the adviser seeks to assess the impact of environmental, social and governance factors on certain 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 sectors to identify financially material issues on the Fund’s investments in municipal issues and ascertain key issues that merit engagement with municipal issuers. These assessments may not be conclusive and securities 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 that may be positively impacted by such factors.The frequency with which the Fund buys and sells securities will vary from year to year, depending on market conditions and the implementation of the tax aware strategy.
Risk [Heading]	rr_RiskHeading	<span style="color:#000000;font-family:Arial;font-size:11pt;font-weight:bold;">The Fund’s Main Investment Risks</span>
Risk Narrative [Text Block]	rr_RiskNarrativeTextBlock	The Fund is subject to management risk and may not achieve its objective if the adviser’s expectations regarding particular instruments or markets are not met.An investment in this Fund or any other fund may not provide a complete investment program. The suitability of an investment in the Fund should be considered based on the investment objective, strategies and risks described in this prospectus, considered in light of all of the other investments in your portfolio, as well as your risk tolerance, financial goals and time horizons. You may want to consult with a financial advisor to determine if this Fund is suitable for you.The Fund is subject to the main risks noted below, any of which may adversely affect the Fund’s performance and ability to meet its investment objective.Municipal Obligations Risk. The risk of a municipal obligation generally depends on the financial and credit status of the issuer. Changes in a municipality’s financial health may make it difficult for the municipality to make interest and principal payments when due. This could decrease the Fund’s income or hurt its ability to preserve capital and liquidity. Under some circumstances, municipal obligations might not pay interest unless the state legislature or municipality authorizes money for that purpose.Municipal obligations may be more susceptible to downgrades or defaults during recessions or similar periods of economic stress. In addition, since some municipal obligations may be secured or guaranteed by banks and other institutions, the risk to the Fund could increase if the banking or financial sector suffers an economic downturn and/or if the credit ratings of the institutions issuing the guarantee are downgraded or at risk of being downgraded by a national rating organization. Such a downward revision or risk of being downgraded may have an adverse effect on the market prices of the bonds and thus the value of the Fund’s investments.In addition to being downgraded, an insolvent municipality may file for bankruptcy. The reorganization of a municipality’s debts may significantly affect the rights of creditors and the value of the securities issued by the municipality and the value of the Fund’s investments. Interest on municipal obligations, while generally exempt from federal income tax, may not be exempt from federal alternative minimum tax.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, 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.For example, the outbreak of COVID-19 has negatively affected economies, markets and individual companies throughout the world, including those in which the Fund invests. The effects of this pandemic to public health and business and market conditions, including, among other things, reduced consumer demand and economic output, supply chain disruptions and increased government spending, may continue to have a significant negative impact on the performance of the Fund’s investments, increase the Fund’s volatility, exacerbate pre-existing political, social and economic risks to the Fund, and negatively impact broad segments of businesses and populations.In addition, governments, their regulatory agencies, or self-regulatory organizations have taken or may take actions in response to the pandemic that affect the instruments in which the Fund invests, or the issuers of such instruments, in ways that could have a significant negative impact on the Fund’s investment performance. The duration and extent of COVID-19 and associated economic and market conditions and uncertainty over the long-term cannot be reasonably estimated at this time. The ultimate impact of COVID-19 and the extent to which the associated conditions impact a Fund will also depend on future developments, which are highly uncertain, difficult to accurately predict and subject to frequent changes.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, 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.Derivatives Risk. Derivatives, including swaps 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 (the risk that the derivative counterparty will not fulfill its contractual obligations) and to the 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. In addition, the Fund may use derivatives for non-hedging purposes, which increases the Fund’s potential for loss.Strategy Risk. The Fund’s investments may not work to achieve the Fund’s objective. There is no guarantee that the use of derivatives and debt securities will mimic a portfolio of inflation-protected municipal securities.Inflation-Linked Securities Risk. Inflation-linked securities, including CPI-U swaps, are subject to the effects of changes in market interest rates caused by factors other than inflation (real interest rates). In general, the price of an inflation-linked security tends to decline when real interest rates increase. Unlike conventional bonds, the principal or interest of inflation-linked securities such as TIPS is adjusted periodically to a specified rate of inflation (e.g., CPI-U). There can be no assurance that the inflation index used will accurately measure the real rate of inflation. These securities may lose value in the event that the actual rate of inflation is different than the rate of the inflation index.Debt Securities and Other Callable Securities Risk. As part of its investment strategy, the Fund invests in debt securities. The issuers of these securities and other callable securities may be able to repay principal in advance, especially when interest rates fall. Changes in prepayment rates can affect the return on investment and yield of these securities. When debt obligations are prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield. The Fund also may fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss.Government Securities Risk. The Fund invests in securities issued or guaranteed by the U.S. government or its agencies and instrumentalities (such as securities issued by the Government National Mortgage Association (Ginnie Mae), the Federal National Mortgage Association (Fannie Mae), or the Federal Home Loan Mortgage Corporation (Freddie Mac)). U.S. government securities are subject to market risk, interest rate risk and credit risk. Securities, such as those issued or guaranteed by Ginnie Mae or the U.S. Treasury, that are backed by the full faith and credit of the United States are guaranteed only as to the timely payment of interest and principal when held to maturity and the market prices for such securities will fluctuate. Notwithstanding that these securities are backed by the full faith and credit of the United States, circumstances could arise that would prevent the payment of interest or principal. This would result in losses to the Fund. Securities issued or guaranteed by U.S. government-related organizations, such as Fannie Mae and Freddie Mac, are not backed by the full faith of the U.S. government and no assurance can be given that the U.S. government will provide financial support. Therefore, U.S. government-related organizations may not have the funds to meet their payment obligations in the future.Interest Rate Risk. The Fund’s investments in bonds and other debt securities will change in value based on changes in interest rates. If rates increase, the value of these investments generally declines. Securities with greater interest rate sensitivity and longer maturities generally are subject to greater fluctuations in value. The Fund may face a heightened level of interest rate risk due to certain changes in monetary policy. It is difficult to predict the pace at which central banks or monetary authorities may increase interest rates or the timing, frequency ormagnitude of such increases. Any such changes could be sudden and could expose debt markets to significant volatility and reduced liquidity for Fund investments.Credit Risk. The Fund’s investments are subject to the risk that issuers and/or counterparties will fail to make payments when due or default completely. Prices of the Fund’s investments may be adversely affected if any of the issuers or counterparties it is invested in are subject to an actual or perceived deterioration in their credit quality. Credit spreads may increase, which may reduce the market values of the Fund’s securities. Credit spread risk is the risk that economic and market conditions or any actual or perceived credit deterioration may lead to an increase in the credit spreads (i.e., the difference in yield between two securities of similar maturity but different credit quality) and a decline in price of the issuer’s securities.High Yield Securities Risk. The Fund may invest in high yield, high risk securities (also known as junk bonds) which are considered to be speculative. These investments may be issued by companies which are highly leveraged, less creditworthy or financially distressed. Although these investments generally provide a higher yield than higher-rated debt securities, the high degree of risk involved in these investments can result in substantial or total losses. These securities are subject to greater risk of loss, greater sensitivity to economic changes, valuation difficulties, and a potential lack of a secondary or public market for securities. The market price of these securities can change suddenly and unexpectedly.In recent years, there has been a broad trend of weaker or less restrictive covenant protections in the high yield market. Among other things, under such weaker or less restrictive covenants, borrowers might be able to exercise more flexibility with respect to certain activities than borrowers who are subject to stronger or more protective covenants. For example, borrowers might be able to incur more debt, including secured debt, return more capital to shareholders, remove or reduce assets that are designated as collateral securing high yield securities, increase the claims against assets that are permitted against collateral securing high yield securities or otherwise manage their business in ways that could impact creditors negatively. In addition, certain privately held borrowers might be permitted to file less frequent, less detailed or less timely financial reporting or other information, which could negatively impact the value of the high yield securities issued by such borrowers. Each of these factors might negatively impact the high yield instruments held by the Fund.Tax Aware Investing Risk. The Fund’s tax aware strategies may reduce your taxable income, but will not eliminate it. These strategies may require trade-offs that reduce pretax income. Managing the Fund to maximize after-tax returns may also potentially have a negative effect on the Fund’s performance. Because tax consequences are considered in managing the Fund, the Fund’s pre-tax performance may be lower than that of a similar fund that is not tax-managed. Even though tax aware strategies are being used, they may not reduce the amount of taxable income and capital gains distributed by the Fund to shareholders, or the amount of Fund distributions that are taxable at ordinary income rates.Mortgage-Related and Other Asset-Backed Securities Risk. Mortgage-related and asset-backed securities, including certain municipal housing authority obligations, differ from conventional debt securities and are subject to certain additional risks because principal is paid back over the life of the security rather than at maturity. The value of these securities will be influenced by the factors affecting the housing market and the assets underlying such securities. As a result, during periods of declining asset values, difficult or frozen credit markets, significant changes in interest rates, or deteriorating economic conditions, mortgage-related and asset-backed securities may decline in value, face valuation difficulties, become more volatile and/or become illiquid. These securities are also subject to prepayment and call risk. In periods of either rising or declining interest rates, the Fund may be subject to contraction risk which is the risk that borrowers will increase the rate at which they prepay the maturity value of mortgages and other obligations. When mortgages and other obligations are prepaid and when securities are called, the Fund may have to reinvest in securities with a lower yield or fail to recover additional amounts (i.e., premiums) paid for securities with higher interest rates, resulting in an unexpected capital loss and/or a decrease in the amount of dividend and yield. In either periods of rising or declining interest rates, the Fund may be subject to extension risk which is the risk that the expected maturity of an obligation will lengthen in duration due to a decrease in prepayments. As a result, in certain interest rate environments, the Fund may exhibit additional volatility. Collateralized mortgage obligations (CMOs), interest-only (IOs) and principal-only (POs) stripped mortgage-backed securities are more volatile and may be subject to a higher risk of non-payment than other mortgage related securities. Additionally, asset-backed, mortgage-related and mortgage-backed securities are subject to risks associated with their structure and the nature of the assets underlying the securities and the servicing of those assets. Certain asset-backed, mortgage-related and mortgage-backed securities may face valuation difficulties and may be less liquid than other types of asset-backed, mortgage-related and mortgage-backed securities, or debt securities.Taxability Risk. The Fund’s investments in municipal securities rely on the opinion of the issuer’s bond counsel that the interest paid on those securities will not be subject to federal income tax. Tax opinions are generally provided at the time the municipal security is initially issued. However, after the Fund buys a security, the Internal Revenue Service may determine that a bond issued as tax-exempt should in fact be taxable and the Fund’s dividends with respect to that bond might be subject to federal income tax.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.Repurchase Agreement Risk. Repurchase agreements involve some risk to the Fund that the counterparty does not meet its obligation under the agreement.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.You could lose money investing in the Fund.
Risk Lose Money [Text]	rr_RiskLoseMoney	<span style="color:#000000;font-family:Arial;font-size:10pt;margin-left:3pt;">You could lose money investing in the Fund.</span>
Risk Not Insured Depository Institution [Text]	rr_RiskNotInsuredDepositoryInstitution	<span style="color:#000000;font-family:Arial;font-size:10pt;line-height:11pt;">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.</span>
Bar Chart and Performance Table [Heading]	rr_BarChartAndPerformanceTableHeading	<span style="color:#000000;font-family:Arial;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 performance of the Fund’s Class A Shares has varied from year to year for the past ten calendar years. The table shows the average annual total returns for the past one year, five years, and ten years. The table compares that performance to the Bloomberg U.S. 1–15 Year Blend (1–17) Municipal Bond Index and the Tax Aware Real Return Composite Benchmark, a composite benchmark which is comprised of unmanaged indexes that correspond to the Fund’s objective of after-tax inflation protected return.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. The performance figures in the bar chart do not reflect any deduction for the front-end sales charge which is assessed on Class A Shares. If the sales charge were reflected, the performance figures would have been lower.Source: Bloomberg Index Services Limited. BLOOMBERG® is a trademark and service mark of Bloomberg Finance L.P. and its affiliates (collectively "Bloomberg"). Bloomberg or Bloomberg's licensors own all proprietary rights in the Bloomberg Indices. Bloomberg does not approve or endorse this material, or guarantee the accuracy or completeness of any information herein, or make any warranty, express or implied, as to the results to be obtained therefrom and, to the maximum extent allowed by law, shall have any liability or responsibility for injury or damages arising in connection therewith.
Performance Information Illustrates Variability of Returns [Text]	rr_PerformanceInformationIllustratesVariabilityOfReturns	<span style="font-family:Arial;font-size:10pt;">The bar chart shows how performance of the Fund’s </span><span style="font-family:Arial;font-size:10pt;">Class A Shares has varied from year to year for the past ten calendar years. The table shows the average annual total returns for the past one year, five years, and ten years.</span>
Performance Additional Market Index [Text]	rr_PerformanceAdditionalMarketIndex	<span style="font-family:Arial;font-size:10pt;"> The </span><span style="font-family:Arial;font-size:10pt;">table compares that performance to the Bloomberg U.S. 1–15 Year Blend (1–17) Municipal Bond Index and the Tax Aware Real Return Composite Benchmark, a composite benchmark which is comprised of unmanaged indexes that correspond to the Fund’s objective of after-tax inflation protected return.</span>
Performance Availability Phone [Text]	rr_PerformanceAvailabilityPhone	<span style="font-family:Arial;font-size:10pt;font-style:italic;">1-800-480-4111</span>
Performance Availability Website Address [Text]	rr_PerformanceAvailabilityWebSiteAddress	<span style="font-family:Arial;font-size:10pt;font-style:italic;">www.jpmorganfunds.com</span>
Performance Past Does Not Indicate Future [Text]	rr_PerformancePastDoesNotIndicateFuture	<span style="font-family:Arial;font-size:10pt;">Past </span><span style="font-family:Arial;font-size:10pt;">performance (before and 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;font-size:10pt;font-weight:bold;margin-left:0.0pt;">YEAR-BY-YEAR RETURNS — CLASS A SHARES</span>
Bar Chart Closing [Text Block]	rr_BarChartClosingTextBlock	Best Quarter2nd quarter, 20204.75%Worst Quarter1st quarter, 2020-8.12%
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:8pt;font-weight:bold;margin-left:0.0pt;">(For periods ended December 31, 2022)</span>
Performance Table Uses Highest Federal Rate	rr_PerformanceTableUsesHighestFederalRate	<span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax </span><span style="color:#000000;font-family:Arial;font-size:10pt;">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;font-size:10pt;">Actual after-tax returns depend on your </span><span style="color:#000000;font-family:Arial;font-size:10pt;">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 One Class of after Tax Shown [Text]	rr_PerformanceTableOneClassOfAfterTaxShown	<span style="color:#000000;font-family:Arial;font-size:10pt;">After-tax returns are shown for only the Class A Shares and after-tax returns for the other classes will vary. </span>
Performance Table Narrative	rr_PerformanceTableNarrativeTextBlock	After-tax returns are shown for only the Class A Shares and after-tax returns for the other classes will vary. 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 your 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 Tax Aware Real Return Fund | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	3.75%
Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares	rr_MaximumDeferredSalesChargeOverOther	none	[1]
Management Fees	rr_ManagementFeesOverAssets	0.35%
Distribution (Rule 12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.25%
Service Fees	rr_Component2OtherExpensesOverAssets	0.25%
Remainder of Other Expenses	rr_Component3OtherExpensesOverAssets	0.15%
Other Expenses	rr_OtherExpensesOverAssets	0.40%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.02%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.02%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.70%	[2]
1 Year	rr_ExpenseExampleYear01	$ 444
3 Years	rr_ExpenseExampleYear03	657
5 Years	rr_ExpenseExampleYear05	887
10 Years	rr_ExpenseExampleYear10	1,548
1 Year	rr_ExpenseExampleNoRedemptionYear01	444
3 Years	rr_ExpenseExampleNoRedemptionYear03	657
5 Years	rr_ExpenseExampleNoRedemptionYear05	887
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,548
2013	rr_AnnualReturn2013	(3.06%)
2014	rr_AnnualReturn2014	0.70%
2015	rr_AnnualReturn2015	0.75%
2016	rr_AnnualReturn2016	1.48%
2017	rr_AnnualReturn2017	2.40%
2018	rr_AnnualReturn2018	(1.01%)
2019	rr_AnnualReturn2019	5.29%
2020	rr_AnnualReturn2020	2.29%
2021	rr_AnnualReturn2021	8.28%
2022	rr_AnnualReturn2022	(6.12%)
Highest Quarterly Return, Label	rr_HighestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span>
Highest Quarterly Return, Date	rr_BarChartHighestQuarterlyReturnDate	Jun. 30, 2020
Highest Quarterly Return	rr_BarChartHighestQuarterlyReturn	4.75%
Lowest Quarterly Return, Label	rr_LowestQuarterlyReturnLabel	<span style="color:#000000;font-family:Arial;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	(8.12%)
Past 1 Year	rr_AverageAnnualReturnYear01	(9.63%)
Past 5 Years	rr_AverageAnnualReturnYear05	0.85%
Past 10 Years	rr_AverageAnnualReturnYear10	0.64%
A C I Shares | JPMorgan Tax Aware Real Return Fund | Class C
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares	rr_MaximumDeferredSalesChargeOverOther	1.00%
Management Fees	rr_ManagementFeesOverAssets	0.35%
Distribution (Rule 12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	0.75%
Service Fees	rr_Component2OtherExpensesOverAssets	0.25%
Remainder of Other Expenses	rr_Component3OtherExpensesOverAssets	0.15%
Other Expenses	rr_OtherExpensesOverAssets	0.40%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.02%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	1.52%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	1.20%	[2]
1 Year	rr_ExpenseExampleYear01	$ 222
3 Years	rr_ExpenseExampleYear03	449
5 Years	rr_ExpenseExampleYear05	799
10 Years	rr_ExpenseExampleYear10	1,650
1 Year	rr_ExpenseExampleNoRedemptionYear01	122
3 Years	rr_ExpenseExampleNoRedemptionYear03	449
5 Years	rr_ExpenseExampleNoRedemptionYear05	799
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 1,650
Past 1 Year	rr_AverageAnnualReturnYear01	(7.61%)
Past 5 Years	rr_AverageAnnualReturnYear05	1.13%
Past 10 Years	rr_AverageAnnualReturnYear10	0.57%
A C I Shares | JPMorgan Tax Aware Real Return Fund | Class I
Risk Return Abstract	rr_RiskReturnAbstract
Maximum Sales Charge (Load) Imposed on Purchases as a % of the Offering Price	rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice	none
Maximum Deferred Sales Charge (Load) as a % of Original Cost of the Shares	rr_MaximumDeferredSalesChargeOverOther	none
Management Fees	rr_ManagementFeesOverAssets	0.35%
Distribution (Rule 12b-1) Fees	rr_DistributionAndService12b1FeesOverAssets	none
Service Fees	rr_Component2OtherExpensesOverAssets	0.25%
Remainder of Other Expenses	rr_Component3OtherExpensesOverAssets	0.15%
Other Expenses	rr_OtherExpensesOverAssets	0.40%
Acquired Fund Fees and Expenses	rr_AcquiredFundFeesAndExpensesOverAssets	0.02%
Total Annual Fund Operating Expenses	rr_ExpensesOverAssets	0.77%
Fee Waivers and/or Expense Reimbursements	rr_FeeWaiverOrReimbursementOverAssets	(0.32%)	[2]
Total Annual Fund Operating Expenses after Fee Waivers and/or Expense Reimbursements	rr_NetExpensesOverAssets	0.45%	[2]
1 Year	rr_ExpenseExampleYear01	$ 46
3 Years	rr_ExpenseExampleYear03	214
5 Years	rr_ExpenseExampleYear05	396
10 Years	rr_ExpenseExampleYear10	924
1 Year	rr_ExpenseExampleNoRedemptionYear01	46
3 Years	rr_ExpenseExampleNoRedemptionYear03	214
5 Years	rr_ExpenseExampleNoRedemptionYear05	396
10 Years	rr_ExpenseExampleNoRedemptionYear10	$ 924
Past 1 Year	rr_AverageAnnualReturnYear01	(5.77%)
Past 5 Years	rr_AverageAnnualReturnYear05	1.89%
Past 10 Years	rr_AverageAnnualReturnYear10	1.29%
A C I Shares | JPMorgan Tax Aware Real Return Fund | Return After Taxes on Distributions | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Past 1 Year	rr_AverageAnnualReturnYear01	(9.63%)
Past 5 Years	rr_AverageAnnualReturnYear05	0.83%
Past 10 Years	rr_AverageAnnualReturnYear10	0.62%
A C I Shares | JPMorgan Tax Aware Real Return Fund | Return After Taxes on Distributions and Sale of Fund Shares | Class A
Risk Return Abstract	rr_RiskReturnAbstract
Past 1 Year	rr_AverageAnnualReturnYear01	(5.05%)
Past 5 Years	rr_AverageAnnualReturnYear05	1.09%
Past 10 Years	rr_AverageAnnualReturnYear10	0.96%
A C I Shares | JPMorgan Tax Aware Real Return Fund | BLOOMBERG U.S. 1-15 YEAR BLEND (1-17) MUNICIPAL BOND INDEX(Reflects No Deduction for Fees, Expenses, or Taxes)
Risk Return Abstract	rr_RiskReturnAbstract
Past 1 Year	rr_AverageAnnualReturnYear01	(5.95%)
Past 5 Years	rr_AverageAnnualReturnYear05	1.44%
Past 10 Years	rr_AverageAnnualReturnYear10	1.95%
A C I Shares | JPMorgan Tax Aware Real Return Fund | TAX AWARE REAL RETURN COMPOSITE BENCHMARK(Reflects No Deduction for Fees, Expenses, or Taxes)
Risk Return Abstract	rr_RiskReturnAbstract
Past 1 Year	rr_AverageAnnualReturnYear01	(3.31%)
Past 5 Years	rr_AverageAnnualReturnYear05	3.61%
Past 10 Years	rr_AverageAnnualReturnYear10	2.40%

[1] For purchases under $250,000.

[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 0.70%, 1.20% and 0.45% 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 2/29/24, 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.