JPMorgan Managed Income Fund Performance Management - I Shares [Member] - JPMorgan Managed Income Fund |
Feb. 28, 2025 |
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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 I 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 U.S. Aggregate Index. The Bloomberg U.S. Aggregate Index serves as the Fund’s regulatory index and provides a broad measure of market performance.The ICE BofA 3-Month US Treasury Bill Index is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index. The performance of Class I Shares is based on the performance of the Class L Shares (which are not offered in this prospectus) prior to the inception of the Class I Shares. The actual performance of Class I Shares would have been different than those shown because Class I Shares have different expenses than Class L 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 1-800-766-7722. 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 Past Does Not Indicate Future [Text] | <span style="font-family:Arial Narrow;font-size:10pt;">Past performance </span><span style="font-family:Arial Narrow;font-size:10pt;">(before and after taxes) 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="font-family:Arial Narrow;font-size:10pt;">The bar chart shows how the performance of the </span><span style="font-family:Arial Narrow;font-size:10pt;">Fund’s Class I Shares has varied from year to year for the past 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="font-family:Arial Narrow;font-size:10pt;">The ICE BofA 3-Month US Treasury Bill Index 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</span> |
| Bar Chart Closing [Text Block] | Best Quarter2nd quarter, 20201.77%Worst Quarter1st quarter, 2020-0.83%The Fund’s year-to-date total returnthrough3/31/25was1.20%. |
| 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, 2024)</span> |
| Performance Table Narrative | 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 Market Index Changed | <span style="font-family:Arial Narrow;font-size:8pt;">As a result of new regulatory requirements, the Fund's regulatory index has changed from the ICE BofA 3-Month US Treasury Bill Index to the Bloomberg U.S. Aggregate Index.</span> |
| 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 </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">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 Availability Website Address [Text] | <span style="font-family:Arial Narrow;font-size:10pt;font-style:italic;">www.jpmorganfunds.com</span> |
| Performance Availability Phone [Text] | <span style="font-family:Arial Narrow;font-size:10pt;font-style:italic;">1-800-766-7722</span> |
| Class I | |
| 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 | 1.20% |
| Bar Chart, Year to Date Return, Date | Mar. 31, 2025 |
| 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 | 1.77% |
| 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 | (0.83%) |
| Lowest Quarterly Return, Date | Mar. 31, 2020 |