JPMorgan Emerging Markets Debt Fund Performance Management - R5 R6 Shares [Member] - JPMorgan Emerging Markets Debt Fund |
Feb. 28, 2026 |
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| Prospectus [Line Items] | |
| Bar Chart and Performance Table [Heading] | <span style="color:#000000;font-family:Arial Narrow;font-size:11pt;font-weight:bold;">The Fund’s Past Performance</span> |
| Performance Narrative [Text Block] | 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 R5 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 the Fund’s performance to the performance of the Bloomberg Global Aggregate Index-Unhedged USD and the J.P. Morgan Emerging Markets Bond Index Global Diversified. The Bloomberg Global Aggregate Index-Unhedged USD serves as the Fund’s regulatory index and provides a broad measure of market performance. The J.P. Morgan Emerging Markets Bond Index Global Diversified is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index. The performance of Class R6 Shares in the performance table is based on the performance of Class R5 Shares prior to the inception of Class R6 Shares. The actual returns of Class R6 Shares would have been different than those shown because Class R6 Shares have different expenses than Class R5 Shares. Past performance (before and after taxes) is not necessarily an indication of how any class of 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: 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. Information has been obtained from sources believed to be reliable but J.P. Morgan does not warrant its completeness or accuracy. The Index is used with permission. The Index may not be copied, used, or distributed without J.P. Morgan's prior written approval. Copyright 2024, J.P. Morgan Chase & Co. All rights reserved. |
| Performance Past Does Not Indicate Future [Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">Past performance (before and after taxes) </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">is not necessarily an indication of how any class of the Fund will perform in the future. </span> |
| Performance Information Illustrates Variability of Returns [Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">The bar chart shows how the performance of the </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">Fund’s Class R5 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] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">The J.P. Morgan Emerging Markets Bond </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">Index Global Diversified is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.</span> |
| Bar Chart [Heading] | <span style="color:#FFFFFF;font-family:Arial Narrow;font-size:10pt;font-weight:bold;margin-left:0.0pt;">YEAR-BY-YEAR RETURNS - CLASS R5 SHARES</span> |
| Bar Chart Closing [Text Block] | Best Quarter2nd quarter, 202014.86%Worst Quarter1st quarter, 2020-17.20%The Fund’s year-to-date total returnthrough3/31/26was-1.45%. |
| Performance Table Heading | <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, 2025)</span> |
| Performance Table Narrative | After-tax returns are shown for only the Class R5 Shares and after-tax returns for the other class 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 the investor’s tax situation and may differ from those shown, and 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. |
| Performance Table Uses Highest Federal Rate | <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 | <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, and 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] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">After-tax returns are shown for only the Class R5 Shares and after-tax returns for the other class will vary.</span> |
| Performance Availability Website Address [Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-style:italic;">www.jpmorganfunds.com</span> |
| Performance Availability Phone [Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:10pt;font-style:italic;">1-800-480-4111</span> |
| Class R5 | |
| Prospectus [Line Items] | |
| Year to Date Return, Label [Optional Text] | <span style="font-family:Arial Narrow;font-size:9pt;margin-left:0.0pt;">The Fund’s year-to-date total return</span> |
| Bar Chart, Year to Date Return | (1.45%) |
| Bar Chart, Year to Date Return, Date | Mar. 31, 2026 |
| Highest Quarterly Return, Label [Optional Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span> |
| Highest Quarterly Return | 14.86% |
| Highest Quarterly Return, Date | Jun. 30, 2020 |
| Lowest Quarterly Return, Label [Optional Text] | <span style="color:#000000;font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter</span> |
| Lowest Quarterly Return | (17.20%) |
| Lowest Quarterly Return, Date | Mar. 31, 2020 |