v3.26.3
JPMorgan Large Cap Growth Fund Expense Example - R2 R3 R4 R5 R6 Shares [Member] - JPMorgan Large Cap Growth Fund
Jun. 30, 2026
USD ($)
Class R2  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 121
Expense Example, with Redemption, 3 Years 388
Expense Example, with Redemption, 5 Years 676
Expense Example, with Redemption, 10 Years 1,496
Class R3  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 96
Expense Example, with Redemption, 3 Years 308
Expense Example, with Redemption, 5 Years 538
Expense Example, with Redemption, 10 Years 1,198
Class R4  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 70
Expense Example, with Redemption, 3 Years 229
Expense Example, with Redemption, 5 Years 402
Expense Example, with Redemption, 10 Years 903
Class R5  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 55
Expense Example, with Redemption, 3 Years 182
Expense Example, with Redemption, 5 Years 320
Expense Example, with Redemption, 10 Years 722
Class R6  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 45
Expense Example, with Redemption, 3 Years 150
Expense Example, with Redemption, 5 Years 265
Expense Example, with Redemption, 10 Years $ 600