v3.25.0.1
Label Element Value
Risk Return Abstract rr_RiskReturnAbstract  
Document Type dei_DocumentType 485BPOS
Period End Date dei_DocumentPeriodEndDate Oct. 31, 2024
Registrant Name dei_EntityRegistrantName JPMORGAN TRUST I
CIK dei_EntityCentralIndexKey 0001217286
Amendment Flag dei_AmendmentFlag false
Document Creation Date dei_DocumentCreationDate Feb. 24, 2025
Document Effective Date dei_DocumentEffectiveDate Mar. 01, 2025
Prospectus Date rr_ProspectusDate Mar. 01, 2025
Entity Inv Company Type dei_EntityInvCompanyType N-1A
JPMorgan Global Allocation Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOAX
JPMorgan Global Allocation Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOCX
JPMorgan Global Allocation Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOSX
JPMorgan Global Allocation Fund | Class R2  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAONX
JPMorgan Global Allocation Fund | Class R3  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOTX
JPMorgan Global Allocation Fund | Class R4  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOFX
JPMorgan Global Allocation Fund | Class R5  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAORX
JPMorgan Global Allocation Fund | Class R6  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol GAOZX
JPMorgan Income Builder Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JNBAX
JPMorgan Income Builder Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JNBCX
JPMorgan Income Builder Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JNBSX
JPMorgan Income Builder Fund | Class R6  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JNBZX
JPMorgan Tax Aware Real Return Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol TXRAX
JPMorgan Tax Aware Real Return Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol TXRCX
JPMorgan Tax Aware Real Return Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol TXRIX
JPMorgan Research Market Neutral Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JMNAX
JPMorgan Research Market Neutral Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JMNCX
JPMorgan Research Market Neutral Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JMNSX