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S000082569 [Member] Investment Objectives and Goals - AB Tax-Aware Intermediate Municipal ETF
Nov. 30, 2025
Prospectus [Line Items]  
Risk/Return [Heading] AB Tax-Aware Intermediate Municipal ETF
Objective [Heading] INVESTMENT OBJECTIVE
Objective, Primary [Text Block]
The Fund’s investment objective is to provide enhanced income and attractive risk-adjusted after-tax returns.