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JPMorgan U.S. Government Money Market Fund Average Annual Total Returns
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Institutional Shares [Member] | Institutional      
Prospectus [Line Items]      
Average Annual Return, Percent 4.16% 3.13% 2.07%