v3.25.3
JPMorgan SmartRetirement 2045 Fund Expense Example - R2 R3 R4 R5 R6 Shares [Member] - JPMorgan SmartRetirement 2045 Fund
Jun. 30, 2025
USD ($)
Class R2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 116
Expense Example, with Redemption, 3 Years 366
Expense Example, with Redemption, 5 Years 636
Expense Example, with Redemption, 10 Years 1,407
Class R3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 288
Expense Example, with Redemption, 5 Years 502
Expense Example, with Redemption, 10 Years 1,118
Class R4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 65
Expense Example, with Redemption, 3 Years 209
Expense Example, with Redemption, 5 Years 366
Expense Example, with Redemption, 10 Years 821
Class R5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 50
Expense Example, with Redemption, 3 Years 159
Expense Example, with Redemption, 5 Years 279
Expense Example, with Redemption, 10 Years 627
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 40
Expense Example, with Redemption, 3 Years 130
Expense Example, with Redemption, 5 Years 228
Expense Example, with Redemption, 10 Years $ 516