S000001275 [Member] Investment Objectives and Goals - U.S. GOVERNMENT SELECT PORTFOLIO |
Nov. 30, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | U.S. GOVERNMENT SELECT PORTFOLIO—ADMIN 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.
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