v3.26.1
AB International Bond Portfolio Expense Example - AB International Bond Portfolio
Dec. 31, 2025
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 63
Expense Example, with Redemption, 3 Years 199
Expense Example, with Redemption, 5 Years 346
Expense Example, with Redemption, 10 Years 774
Class B  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 89
Expense Example, with Redemption, 3 Years 278
Expense Example, with Redemption, 5 Years 482
Expense Example, with Redemption, 10 Years $ 1,073