v3.26.3
S000010512 [Member] Expense Example - AB All Market Total Return Portfolio
Jun. 30, 2026
USD ($)
Class A  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 532
Expense Example, with Redemption, 3 Years 762
Expense Example, with Redemption, 5 Years 1,010
Expense Example, with Redemption, 10 Years 1,718
Class C  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 289 [1]
Expense Example, with Redemption, 3 Years 587
Expense Example, with Redemption, 5 Years 1,010
Expense Example, with Redemption, 10 Years 1,991
Advisor Class  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 88
Expense Example, with Redemption, 3 Years 277
Expense Example, with Redemption, 5 Years 481
Expense Example, with Redemption, 10 Years 1,072
Class I  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 91
Expense Example, with Redemption, 3 Years 286
Expense Example, with Redemption, 5 Years 497
Expense Example, with Redemption, 10 Years $ 1,107
[1]
If you did not redeem your shares at the end of the period, your expenses would be decreased by approximately $100.