v3.25.4
Class A C G P R [Member] Expense Example, No Redemption - Class A C G P R - Putnam Government Money Market Fund - Class C Shares
Sep. 30, 2025
USD ($)
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 46
Expense Example, No Redemption, 3 Years 144
Expense Example, No Redemption, 5 Years 252
Expense Example, No Redemption, 10 Years $ 567