Fundamental Data Science Large Core ETF Performance Management - Fundamental Data Science Large Core ETF |
Jun. 30, 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 the performance of the Fund’s Shares over the past calendar year. 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 S&P 500 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 1-844-457-6383 (844-4JPM ETF). The S&P 500 Index (“Index”) is a product of S&P Dow Jones Indices LLC and/or its affiliates and have been licensed for use by the adviser. Copyright © 2023. S&P Dow Jones Indices LLC, a subsidiary of S&P Global, Inc., and/or its affiliates. All rights reserved. Redistribution or reproduction in whole or in part are prohibited without written permission of S&P Dow Jones Indices LLC. For more information on any of S&P Dow Jones Indices LLC’s indices please visit www.spdji.com. S&P® is a registered trademark of Standard & Poor’s Financial Services LLC and Dow Jones® is a registered trademark of Dow Jones Trademark Holdings LLC. Neither S&P Dow Jones Indices LLC, Dow Jones Trademark Holdings LLC, their affiliates nor their third party licensors make any representation or warranty, express or implied, as to the ability of any index to accurately represent the asset class or market sector that it purports to represent and neither S&P Dow Jones Indices LLC, Dow Jones Trademark Holdings LLC, their affiliates nor their third party licensors shall have any liability for any errors, omissions, or interruptions of any index or the data included therein. |
| Performance Past Does Not Indicate Future [Text] | <span style="font-family:Arial Narrow;font-size:10pt;">Past performance (before and after taxes) is not necessarily an indication of how 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 the performance of the Fund’s Shares over the past calendar year.</span><span style="font-family:Arial Narrow;font-size:10pt;line-height:11pt;"> </span><span style="font-family:Arial Narrow;font-size:10pt;">The table shows the average annual total returns for the past one year and life of the Fund.</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, 202510.97%Worst Quarter1st quarter, 2025-4.42%The Fund’s year-to-date total returnthrough9/30/26was12.96%. |
| 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:7pt;font-weight:bold;margin-left:0.0pt;">(For periods ended December 31, 2025)</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 Uses Highest Federal Rate | <span style="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="font-family:Arial Narrow;font-size:10pt;">Actual after-tax returns </span><span style="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;">1-844-457-6383 (844-4JPM</span><span style="font-family:Arial Narrow;font-size:10pt;font-style:italic;"> ETF)</span> |
| ETF | |
| 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 | 12.96% |
| Bar Chart, Year to Date Return, Date | Sep. 30, 2026 |
| Highest Quarterly Return, Label [Optional Text] | <span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Best Quarter</span> |
| Highest Quarterly Return | 10.97% |
| Highest Quarterly Return, Date | Jun. 30, 2025 |
| Lowest Quarterly Return, Label [Optional Text] | <span style="font-family:Arial Narrow;font-size:9pt;font-weight:bold;margin-left:0.0pt;">Worst Quarter</span> |
| Lowest Quarterly Return | (4.42%) |
| Lowest Quarterly Return, Date | Mar. 31, 2025 |