S000010351 [Member] Investment Objectives and Goals - AB National Portfolio |
May 31, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | SUMMARY INFORMATION AB National Portfolio |
| Objective [Heading] | INVESTMENT OBJECTIVE: |
| Objective, Primary [Text Block] |
The investment objective of the Portfolio is to earn the highest level of current income, exempt from federal income tax, that is available without assuming what the Adviser considers to be undue risk to principal or income.
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