v3.26.3
Shareholder Report
6 Months Ended
Aug. 31, 2026
USD ($)
Holding
Shareholder Report [Line Items]  
Document Type N-CSRS
Amendment Flag false
Registrant Name J.P. Morgan Exchange-Traded Fund Trust
Entity Central Index Key 0001485894
Entity Investment Company Type N-1A
Document Period End Date Aug. 31, 2026
C000171065 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders USD High Yield Corporate Bond ETF
Class Name JPMorgan BetaBuilders USD High Yield Corporate Bond ETF
Trading Symbol BBHY
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders USD High Yield Corporate Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders USD High Yield Corporate Bond ETF
$4 0.07%
*
This charge is annualized.
Expenses Paid, Amount $ 4
Expense Ratio, Percent 0.07% [1]
Net Assets $ 622,620,319
Holdings Count | Holding 1,608
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $622,620,319
Total number of portfolio holdings 1,608
Portfolio turnover rate 15 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000172198 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Ultra-Short Income ETF
Class Name JPMorgan Ultra-Short Income ETF
Trading Symbol JPST
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Ultra-Short Income ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Ultra-Short Income ETF
$9 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 9
Expense Ratio, Percent 0.17% [2]
Net Assets $ 41,127,609,330
Holdings Count | Holding 797
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $41,127,609,330
Total number of portfolio holdings 797
Portfolio turnover rate 29 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - SECTOR
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000172241 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan International Bond Opportunities ETF
Class Name JPMorgan International Bond Opportunities ETF
Trading Symbol JPIB
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan International Bond Opportunities ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan International Bond Opportunities ETF
$25 0.50%
*
This charge is annualized.
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.50% [3]
Net Assets $ 2,208,677,596
Holdings Count | Holding 1,144
Investment Company Portfolio Turnover 26.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $2,208,677,596
Total number of portfolio holdings 1,144
Portfolio turnover rate 26 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000196949 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan USD Emerging Markets Sovereign Bond ETF
Class Name JPMorgan USD Emerging Markets Sovereign Bond ETF
Trading Symbol JPMB
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan USD Emerging Markets Sovereign Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan USD Emerging Markets Sovereign Bond ETF
$20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [4]
Net Assets $ 95,082,247
Holdings Count | Holding 213
Investment Company Portfolio Turnover 15.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $95,082,247
Total number of portfolio holdings 213
Portfolio turnover rate 15 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - COUNTRY
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000200807 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders MSCI US REIT ETF
Class Name JPMorgan BetaBuilders MSCI US REIT ETF
Trading Symbol BBRE
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders MSCI US REIT ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders MSCI US REIT ETF
$6 0.11%
*
This charge is annualized.
Expenses Paid, Amount $ 6
Expense Ratio, Percent 0.11% [5]
Net Assets $ 1,254,874,581
Holdings Count | Holding 105
Investment Company Portfolio Turnover 6.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $1,254,874,581
Total number of portfolio holdings 105
Portfolio turnover rate 6 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - SECTOR
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000205212 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Core Plus Bond ETF
Class Name JPMorgan Core Plus Bond ETF
Trading Symbol JCPB
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Core Plus Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Core Plus Bond ETF
$18 0.37%
*
This charge is annualized.
Expenses Paid, Amount $ 18
Expense Ratio, Percent 0.37% [6]
Net Assets $ 14,643,221,745
Holdings Count | Holding 2,757
Investment Company Portfolio Turnover 34.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $14,643,221,745
Total number of portfolio holdings 2,757
Portfolio turnover rate 34 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000205215 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Municipal ETF
Class Name JPMorgan Municipal ETF
Trading Symbol JMUB
Security Exchange Name NYSE
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Municipal ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Municipal ETF
$8 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.17% [7]
Net Assets $ 8,750,482,549
Holdings Count | Holding 2,087
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $8,750,482,549
Total number of portfolio holdings 2,087
Portfolio turnover rate 20 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
C000205216 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Ultra-Short Municipal Income ETF
Class Name JPMorgan Ultra-Short Municipal Income ETF
Trading Symbol JMST
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Ultra-Short Municipal Income ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Ultra-Short Municipal Income ETF
$8 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.17% [8]
Net Assets $ 7,355,196,698
Holdings Count | Holding 1,542
Investment Company Portfolio Turnover 20.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $7,355,196,698
Total number of portfolio holdings 1,542
Portfolio turnover rate 20 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
C000206281 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders USD Investment Grade Corporate Bond ETF
Class Name JPMorgan BetaBuilders USD Investment Grade Corporate Bond ETF
Trading Symbol BBCB
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders USD Investment Grade Corporate Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders USD Investment Grade Corporate Bond ETF
$2 0.04%
*
This charge is annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04% [9]
Net Assets $ 52,142,908
Holdings Count | Holding 1,349
Investment Company Portfolio Turnover 17.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $52,142,908
Total number of portfolio holdings 1,349
Portfolio turnover rate 17 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - SECTOR
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000206282 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders U.S. Aggregate Bond ETF
Class Name JPMorgan BetaBuilders U.S. Aggregate Bond ETF
Trading Symbol BBAG
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders U.S. Aggregate Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders U.S. Aggregate Bond ETF
$1 0.03%
*
This charge is annualized.
Expenses Paid, Amount $ 1
Expense Ratio, Percent 0.03% [10]
Net Assets $ 1,033,532,782
Holdings Count | Holding 1,588
Investment Company Portfolio Turnover 23.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $1,033,532,782
Total number of portfolio holdings 1,588
Portfolio turnover rate 23 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000225677 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Short Duration Core Plus ETF
Class Name JPMorgan Short Duration Core Plus ETF
Trading Symbol JSCP
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Short Duration Core Plus ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Short Duration Core Plus ETF
$16 0.33%
*
This charge is annualized.
Expenses Paid, Amount $ 16
Expense Ratio, Percent 0.33% [11]
Net Assets $ 1,821,767,611
Holdings Count | Holding 1,316
Investment Company Portfolio Turnover 31.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $1,821,767,611
Total number of portfolio holdings 1,316
Portfolio turnover rate 31 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
(a)
Amount rounds to less than 0.1%.
C000229632 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Income ETF
Class Name JPMorgan Income ETF
Trading Symbol JPIE
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Income ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Income ETF
$20 0.39%
*
This charge is annualized.
Expenses Paid, Amount $ 20
Expense Ratio, Percent 0.39% [12]
Net Assets $ 10,686,860,293
Holdings Count | Holding 2,715
Investment Company Portfolio Turnover 51.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $10,686,860,293
Total number of portfolio holdings 2,715
Portfolio turnover rate 51 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000231436 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Inflation Managed Bond ETF
Class Name JPMorgan Inflation Managed Bond ETF
Trading Symbol JCPI
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Inflation Managed Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Inflation Managed Bond ETF
$13 0.25%
*
This charge is annualized.
Expenses Paid, Amount $ 13
Expense Ratio, Percent 0.25% [13]
Net Assets $ 898,476,790
Holdings Count | Holding 778
Investment Company Portfolio Turnover 41.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $898,476,790
Total number of portfolio holdings 778
Portfolio turnover rate 41 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000231439 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Realty Income ETF
Class Name JPMorgan Realty Income ETF
Trading Symbol JPRE
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Realty Income ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Realty Income ETF
$25 0.50%
*
This charge is annualized.
Expenses Paid, Amount $ 25
Expense Ratio, Percent 0.50% [14]
Net Assets $ 477,394,670
Holdings Count | Holding 40
Investment Company Portfolio Turnover 44.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $477,394,670
Total number of portfolio holdings 40
Portfolio turnover rate 44 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - SECTOR
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000240901 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders U.S. Treasury Bond 1-3 Year ETF
Class Name JPMorgan BetaBuilders U.S. Treasury Bond 1-3 Year ETF
Trading Symbol BBSB
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders U.S. Treasury Bond 1-3 Year ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders U.S. Treasury Bond 1-3 Year ETF
$2 0.04%
*
This charge is annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04% [15]
Net Assets $ 55,150,015
Holdings Count | Holding 92
Investment Company Portfolio Turnover 29.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $55,150,015
Total number of portfolio holdings 92
Portfolio turnover rate 29 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000240902 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders U.S. Treasury Bond 3-10 Year ETF
Class Name JPMorgan BetaBuilders U.S. Treasury Bond 3-10 Year ETF
Trading Symbol BBIB
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders U.S. Treasury Bond 3-10 Year ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders U.S. Treasury Bond 3-10 Year ETF
$2 0.04%
*
This charge is annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04% [16]
Net Assets $ 54,039,745
Holdings Count | Holding 82
Investment Company Portfolio Turnover 18.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $54,039,745
Total number of portfolio holdings 82
Portfolio turnover rate 18 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000240903 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan BetaBuilders U.S. Treasury Bond 20+ Year ETF
Class Name JPMorgan BetaBuilders U.S. Treasury Bond 20+ Year ETF
Trading Symbol BBLB
Security Exchange Name CboeBZX
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan BetaBuilders U.S. Treasury Bond 20+ Year ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan BetaBuilders U.S. Treasury Bond 20+ Year ETF
$2 0.04%
*
This charge is annualized.
Expenses Paid, Amount $ 2
Expense Ratio, Percent 0.04% [17]
Net Assets $ 33,704,714
Holdings Count | Holding 41
Investment Company Portfolio Turnover 10.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $33,704,714
Total number of portfolio holdings 41
Portfolio turnover rate 10 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000241196 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan High Yield Municipal ETF
Class Name JPMorgan High Yield Municipal ETF
Trading Symbol JMHI
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan High Yield Municipal ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan High Yield Municipal ETF
$17 0.34%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [18]
Net Assets $ 293,289,827
Holdings Count | Holding 234
Investment Company Portfolio Turnover 43.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $293,289,827
Total number of portfolio holdings 234
Portfolio turnover rate 43 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
C000241197 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Limited Duration Bond ETF
Class Name JPMorgan Limited Duration Bond ETF
Trading Symbol JPLD
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Limited Duration Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Limited Duration Bond ETF
$12 0.24%
*
This charge is annualized.
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.24% [19]
Net Assets $ 4,031,628,953
Holdings Count | Holding 766
Investment Company Portfolio Turnover 23.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $4,031,628,953
Total number of portfolio holdings 766
Portfolio turnover rate 23 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000241198 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Sustainable Municipal Income ETF
Class Name JPMorgan Sustainable Municipal Income ETF
Trading Symbol JMSI
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Sustainable Municipal Income ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Sustainable Municipal Income ETF
$8 0.17%
*
This charge is annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.17% [20]
Net Assets $ 389,372,222
Holdings Count | Holding 289
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $389,372,222
Total number of portfolio holdings 289
Portfolio turnover rate 22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
C000244901 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Active Bond ETF
Class Name JPMorgan Active Bond ETF
Trading Symbol JBND
Security Exchange Name NYSE
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Active Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Active Bond ETF
$12 0.25%
*
This charge is annualized.
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.25% [21]
Net Assets $ 8,660,315,669
Holdings Count | Holding 1,751
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $8,660,315,669
Total number of portfolio holdings 1,751
Portfolio turnover rate 22 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000255145 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Active High Yield ETF
Class Name JPMorgan Active High Yield ETF
Trading Symbol JPHY
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Active High Yield ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Active High Yield ETF
$23 0.45%
*
This charge is annualized.
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.45% [22]
Net Assets $ 2,244,766,045
Holdings Count | Holding 550
Investment Company Portfolio Turnover 18.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $2,244,766,045
Total number of portfolio holdings 550
Portfolio turnover rate 18 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000257464 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Mortgage-Backed Securities ETF
Class Name JPMorgan Mortgage-Backed Securities ETF
Trading Symbol JMTG
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Mortgage-Backed Securities ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Mortgage-Backed Securities ETF
$12 0.24%
*
This charge is annualized.
Expenses Paid, Amount $ 12
Expense Ratio, Percent 0.24% [23]
Net Assets $ 6,873,659,007
Holdings Count | Holding 2,590
Investment Company Portfolio Turnover 25.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $6,873,659,007
Total number of portfolio holdings 2,590
Portfolio turnover rate 25 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000260023 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan Flexible Debt ETF
Class Name JPMorgan Flexible Debt ETF
Trading Symbol JFLX
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan Flexible Debt ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan Flexible Debt ETF
$23 0.45%
*
This charge is annualized.
Expenses Paid, Amount $ 23
Expense Ratio, Percent 0.45% [24]
Net Assets $ 1,560,262,334
Holdings Count | Holding 1,731
Investment Company Portfolio Turnover 65.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $1,560,262,334
Total number of portfolio holdings 1,731
Portfolio turnover rate 65 %
Holdings [Text Block]
PORTFOLIO COMPOSITION - ASSET CLASS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
C000263971 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan 100% U.S. Treasury Securities Money Market ETF
Class Name JPMorgan 100% U.S. Treasury Securities Money Market ETF
Trading Symbol JMMF
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan 100% U.S. Treasury Securities Money Market ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan 100% U.S. Treasury Securities Money Market ETF
$8 0.16%
*
This charge is annualized.
Expenses Paid, Amount $ 8
Expense Ratio, Percent 0.16% [25]
Net Assets $ 81,103,786
Holdings Count | Holding 58
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $81,103,786
Total number of portfolio holdings 58
Holdings [Text Block]
EFFECTIVE MATURITY
(% of total investments)
1 calendar day 23.6
2–7 calendar days 6.0
8–30 calendar days 35.9
31–60 calendar days 21.0
61–90 calendar days 3.1
91–180 calendar days 7.0
181+ calendar days 3.4
C000271702 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan California Tax Free Bond ETF
Class Name JPMorgan California Tax Free Bond ETF
Trading Symbol JCAL
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan California Tax Free Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan California Tax Free Bond ETF
$17 0.34%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [26]
Net Assets $ 501,086,349
Holdings Count | Holding 308
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $501,086,349
Total number of portfolio holdings 308
Portfolio turnover rate 22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
C000271703 [Member]  
Shareholder Report [Line Items]  
Fund Name JPMorgan New York Tax Free Bond ETF
Class Name JPMorgan New York Tax Free Bond ETF
Trading Symbol JTNY
Security Exchange Name NYSEArca
Annual or Semi-Annual Statement [Text Block] This semi-annual shareholder report contains important information about the JPMorgan New York Tax Free Bond ETF (the "Fund") for the period of March 1, 2026 to August 31, 2026.
Shareholder Report Annual or Semi-Annual semi-annual shareholder report
Additional Information [Text Block] You can find additional information about the Fund at www.jpmorganfunds.com/funddocuments. You can also request this information by contacting us at 1-844-457-6383, by sending an e-mail request to jpm.xf@jpmorgan.com or by asking any financial intermediary that offers shares of the Fund.
Additional Information Phone Number 1-844-457-6383
Additional Information Email jpm.xf@jpmorgan.com
Additional Information Website www.jpmorganfunds.com/funddocuments
Expenses [Text Block]
What were the Fund costs for the last six months?
(based on a hypothetical $10,000 investment)
Fund Costs of a
$10,000 investment
Costs paid as a percentage
of a $10,000 investment*
JPMorgan New York Tax Free Bond ETF
$17 0.34%
*
This charge is annualized.
Expenses Paid, Amount $ 17
Expense Ratio, Percent 0.34% [27]
Net Assets $ 447,558,141
Holdings Count | Holding 222
Investment Company Portfolio Turnover 22.00%
Additional Fund Statistics [Text Block]

KEY FUND STATISTICS
Fund net assets $447,558,141
Total number of portfolio holdings 222
Portfolio turnover rate 22 %
Holdings [Text Block]
CREDIT QUALITY ALLOCATIONS
(% of Total Investments)
Graphical Representation - Allocation 1 Chart
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Quality Explanation [Text Block]
The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch. When calculating the credit quality breakdown, the Portfolio manager selects the middle rating of the agencies when all three agencies rate a security. The Portfolio manager will use the lower of the two ratings if only two agencies rate a security and will use one rating if that is all that is provided. Securities that are not rated by any of the three agencies are reflected as not rated.
Credit Ratings Selection [Text Block] The Portfolio manager uses credit quality ratings on underlying securities of the portfolio from three major ratings agencies - S&P, Moody's and Fitch.
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