v3.26.1
JPMorgan High Yield Fund Expense Example, No Redemption - A C I Shares [Member] - JPMorgan High Yield Fund
Feb. 28, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 459
Expense Example, No Redemption, 3 Years 690
Expense Example, No Redemption, 5 Years 939
Expense Example, No Redemption, 10 Years 1,654
Class C  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 137
Expense Example, No Redemption, 3 Years 483
Expense Example, No Redemption, 5 Years 852
Expense Example, No Redemption, 10 Years 1,755
Class I  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 61
Expense Example, No Redemption, 3 Years 246
Expense Example, No Redemption, 5 Years 447
Expense Example, No Redemption, 10 Years $ 1,026