v3.25.4
Class A C G P R [Member] Investment Objectives and Goals - Class A C G P R - Putnam Government Money Market Fund
Sep. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] Fund summary
Objective [Heading] Goal
Objective, Primary [Text Block]
The fund seeks as high a rate of current income as the Investment Manager (as defined below) believes is consistent with preservation of capital and maintenance of liquidity.