AB Fixed Income Taxable Portfolios [Member] Investment Objectives and Goals - AB Fixed Income Taxable Portfolios - AB Core Bond Portfolio |
Sep. 30, 2025 |
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| Prospectus [Line Items] | |
| Risk/Return [Heading] | AB FIXED-INCOME TAXABLE PORTFOLIO AB Core Bond Portfolio (formerly, AB Intermediate Duration Portfolio) of Sanford C. Bernstein Fund, Inc. |
| Objective [Heading] | INVESTMENT OBJECTIVE: |
| Objective, Primary [Text Block] |
The Portfolio’s investment objective is to provide safety of principal and a moderate to high rate of income that is subject to taxes.
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