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 IV
CIK dei_EntityCentralIndexKey 0001659326
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 Emerging Markets Research Enhanced Equity Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol EMREX
JPMorgan Emerging Markets Research Enhanced Equity Fund | Class R6  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol EMRSX
JPMorgan International Hedged Equity Fund | Class A  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JIHAX
JPMorgan International Hedged Equity Fund | Class C  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JIHCX
JPMorgan International Hedged Equity Fund | Class I  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JIHIX
JPMorgan International Hedged Equity Fund | Class R6  
Risk Return Abstract rr_RiskReturnAbstract  
Trading Symbol dei_TradingSymbol JIHRX