v3.26.1
JPMorgan Institutional Tax Free Money Market Fund Expense Example - Capital Shares [Member] - JPMorgan Institutional Tax Free Money Market Fund - Capital
Feb. 28, 2026
USD ($)
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 18
Expense Example, with Redemption, 3 Years 60
Expense Example, with Redemption, 5 Years 106
Expense Example, with Redemption, 10 Years $ 242