AB Intermediate Municipal Portfolios [Member] Investment Objectives and Goals - AB Intermediate Municipal Portfolios - Diversified Municipal Portfolio |
Sep. 30, 2025 |
|---|---|
| Prospectus [Line Items] | |
| Risk/Return [Heading] | SUMMARY INFORMATION: SANFORD C. BERNSTEIN FUND, INC. AB FIXED-INCOME MUNICIPAL PORTFOLIO AB Intermediate Diversified Municipal Portfolio of Sanford C. Bernstein Fund, Inc. |
| Objective [Heading] | INVESTMENT OBJECTIVE: |
| Objective, Primary [Text Block] |
The investment objective of the Portfolio is to provide safety of principal and maximize total return after taking account of federal taxes.
|