Small and Mid Cap Enhanced Equity ETF Performance Management - Small and Mid Cap Enhanced Equity ETF	Jun. 30, 2026
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 Fund commenced operations after the assets of another investment company advised by the adviser, JPMorgan Market Expansion Enhanced Index Fund (the predecessor fund), were transferred to the Fund in a tax-free reorganization as of the close of business on May 6, 2022. All share classes of the predecessor fund were converted into the Fund. The Fund has the same investment objective and substantially similar investment strategies as those of the predecessor fund. Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-844-457-6383 (844-4JPM ETF).The bar chart shows how the performance of the Fund’s Shares (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) has varied from year to year for the past ten calendar years. The table shows the Fund’s average annual total returns (represented by the average annual total returns of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) for the past one year, five years and ten years. The table compares the Fund’s performance (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) to the performance of the S&P Composite 1500 Index and S&P 1000 Index. The S&P Composite 1500 Index serves as the Fund’s regulatory index and provides a broad measure of market performance. The S&P 1000 Index is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index. Performance shown for the predecessor fund’s Class R6 Shares prior to their inception are based on the performance of the predecessor fund’s Class I Shares. The actual returns of the predecessor fund’s Class R6 Shares would have been different than those shown because the predecessor fund’s Class R6 Shares had different expenses than the predecessor fund’s Class I Shares. Performance for the Fund’s Shares has not been adjusted to reflect the Fund’s Shares’ lower expenses than those of the predecessor fund’s Class R6 Shares and Class I Shares. Had the predecessor fund been structured as an exchange-traded fund (ETF), its performance may have differed. Performance for the predecessor fund is based on the NAV per share of the predecessor fund shares rather than on market-determined prices. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.The S&P Composite 1500 Index and S&P 1000 Index (each, an “Index”) are products 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="color:#000000;font-family:Arial Narrow;font-size:10pt;">Past performance (before and after </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">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="color:#000000;font-family:Arial Narrow;font-size:10pt;">The bar chart shows how the performance of the Fund’s Shares (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) has varied from year to year for the past ten calendar years. The table shows the Fund’s average annual total returns (represented by the average annual total returns of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) 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 table compares the Fund’s performance (represented by </span><span style="color:#000000;font-family:Arial Narrow;font-size:10pt;">the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) to the performance of the S&P Composite 1500 Index and S&P 1000 Index. The S&P Composite 1500 Index serves as the Fund’s regulatory index and provides a broad measure of market performance. The S&P 1000 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 Quarter4th quarter, 202027.07%Worst Quarter1st quarter, 2020-31.76%The Fund’s year-to-date total returnthrough9/30/26was14.26%.
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 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 </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="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;">1-844-457-6383 (844-4JPM</span><span style="color:#000000;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	14.26%
Bar Chart, Year to Date Return, Date	Sep. 30, 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	27.07%
Highest Quarterly Return, Date	Dec. 31, 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	(31.76%)
Lowest Quarterly Return, Date	Mar. 31, 2020

Small and Mid Cap Enhanced Equity ETF Performance Management - Small and Mid Cap Enhanced Equity ETF

Jun. 30, 2026

Bar Chart and Performance Table [Heading]

The Fund’s Past Performance

Performance Narrative [Text Block]

This section provides some indication of the risks of investing in the Fund. The Fund commenced operations after the assets of another investment company advised by the adviser, JPMorgan Market Expansion Enhanced Index Fund (the predecessor fund), were transferred to the Fund in a tax-free reorganization as of the close of business on May 6, 2022. All share classes of the predecessor fund were converted into the Fund. The Fund has the same investment objective and substantially similar investment strategies as those of the predecessor fund. Updated performance information is available by visiting www.jpmorganfunds.com or by calling 1-844-457-6383 (844-4JPM ETF).The bar chart shows how the performance of the Fund’s Shares (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) has varied from year to year for the past ten calendar years. The table shows the Fund’s average annual total returns (represented by the average annual total returns of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) for the past one year, five years and ten years. The table compares the Fund’s performance (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) to the performance of the S&P Composite 1500 Index and S&P 1000 Index. The S&P Composite 1500 Index serves as the Fund’s regulatory index and provides a broad measure of market performance. The S&P 1000 Index is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index. Performance shown for the predecessor fund’s Class R6 Shares prior to their inception are based on the performance of the predecessor fund’s Class I Shares. The actual returns of the predecessor fund’s Class R6 Shares would have been different than those shown because the predecessor fund’s Class R6 Shares had different expenses than the predecessor fund’s Class I Shares. Performance for the Fund’s Shares has not been adjusted to reflect the Fund’s Shares’ lower expenses than those of the predecessor fund’s Class R6 Shares and Class I Shares. Had the predecessor fund been structured as an exchange-traded fund (ETF), its performance may have differed. Performance for the predecessor fund is based on the NAV per share of the predecessor fund shares rather than on market-determined prices. Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.The S&P Composite 1500 Index and S&P 1000 Index (each, an “Index”) are products 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]

Past performance (before and after taxes) is not necessarily an indication of how the Fund will perform in the future.

Performance Information Illustrates Variability of Returns [Text]

The bar chart shows how the performance of the Fund’s Shares (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) has varied from year to year for the past ten calendar years. The table shows the Fund’s average annual total returns (represented by the average annual total returns of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) for the past one year, five years and ten years.

Performance Additional Market Index [Text]

The table compares the Fund’s performance (represented by the performance of the predecessor fund’s Class R6 Shares for the period prior to the reorganization) to the performance of the S&P Composite 1500 Index and S&P 1000 Index. The S&P Composite 1500 Index serves as the Fund’s regulatory index and provides a broad measure of market performance. The S&P 1000 Index is the Fund’s additional index and is more representative of the Fund’s investment universe than the regulatory index.

Bar Chart [Heading]

YEAR-BY-YEAR RETURNS

Bar Chart Closing [Text Block]

Best Quarter4th quarter, 202027.07%Worst Quarter1st quarter, 2020-31.76%The Fund’s year-to-date total returnthrough9/30/26was14.26%.

Performance Table Heading

AVERAGE ANNUAL TOTAL RETURNS(For periods ended December 31, 2025)

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

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.

Performance Table Not Relevant to Tax Deferred

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 Availability Website Address [Text]

www.jpmorganfunds.com

Performance Availability Phone [Text]

1-844-457-6383 (844-4JPM ETF)

ETF

Prospectus [Line Items]

Year to Date Return, Label [Optional Text]

The Fund’s year-to-date total return

Bar Chart, Year to Date Return

14.26%

Bar Chart, Year to Date Return, Date

Sep. 30, 2026