S000052179 [Member] Investment Objectives and Goals - Western Asset SMASh Series TF Fund |
Feb. 28, 2026 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | Western Asset SMASh Series TF Fund (“SMASh Series TF Fund”) |
| Objective [Heading] | Investment objective |
| Objective, Primary [Text Block] | The fund seeks to maximize current interest income that is excluded from gross income for regular federal income tax purposes.
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