v3.25.4
SCB Classand Advisor Class [Member] Investment Objectives and Goals - Institutional - International Strategic Equities Portfolio
Sep. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] SUMMARY INFORMATION: BERNSTEIN FUND, INC. NON-U.S. EQUITY PORTFOLIOS International Strategic Equities Portfolio of Bernstein Fund, Inc.
Objective [Heading] INVESTMENT OBJECTIVE:
Objective, Primary [Text Block]
The Portfolio’s investment objective is to provide long-term growth of capital.