v3.26.1
Shares [Member] Investment Objectives and Goals - Shares [Member] - U.S. GOVERNMENT PORTFOLIO
Nov. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] U.S. GOVERNMENT PORTFOLIO—SHARES
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Portfolio seeks to maximize current income to the extent consistent with the preservation of capital and maintenance of liquidity by investing exclusively in high quality money market instruments.