3.23.1 html 3 41 1 true 2 0 false 2 false false R1.htm 000000 - Document - Document and Entity Information {Elements} Sheet http://www.jpmorganfunds.com/role/DocumentDocumentandEntityInformationElements Document and Entity Information 1 false false R2.htm 000019 - Disclosure - Risk/Return Detail Data {Elements} - JPMorgan BetaBuilders Emerging Markets Equity ETF Sheet http://www.jpmorganfunds.com/role/DisclosureRiskReturnDetailDataElementsJPMorganBetaBuildersEmergingMarketsEquityETF Risk/Return Detail Data- JPMorgan BetaBuilders Emerging Markets Equity ETF 2 false false R3.htm 040000 - Disclosure - Risk/Return Detail Data {Elements} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetailData Risk/Return Detail Data 3 false false All Reports Book All Reports [dq-0542-Deprecated-Concept] Concept RiskNarrativeTextBlock in rr/2021 used in 1 facts was deprecated in rr/2023 as of 2023-01-31 and should not be used. d679507d485bpos.htm 165 [dq-0542-Deprecated-Concept] Concept RiskNotInsuredDepositoryInstitution in rr/2021 used in 1 facts was deprecated in rr/2023 as of 2023-01-31 and should not be used. d679507d485bpos.htm 166 [dq-0542-Deprecated-Concept] Concept RiskLoseMoney in rr/2021 used in 1 facts was deprecated in rr/2023 as of 2023-01-31 and should not be used. d679507d485bpos.htm 166 [ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 1 fact(s) appearing in ix:hidden were eligible for transformation: rr:ProspectusDate - d679507d485bpos.htm 9 d679507d485bpos.htm d679507dex99d4b.htm d679507dex99d6b.htm d679507dex99h4c.htm d679507dex99i.htm jpeft-20230329.xsd jpeft-20230329_cal.xml jpeft-20230329_def.xml jpeft-20230329_lab.xml jpeft-20230329_pre.xml g560441gl_shading.gif g560441img1b4f777f4.gif g560441img2019e8b12.gif g560441img24c0e5491.gif g560441img365acce23.gif g560441img79609a4b6.jpg g560441imgb072aaef5.jpg g560441iss_logo.gif g560441iss_shading.gif g560441pyramid.gif g679507fsc_proslogo.gif g679507logo_back.gif g679507logo_front.gif http://xbrl.sec.gov/dei/2021 http://xbrl.sec.gov/rr/2021 true true