v3.25.2
S000027380 [Member] Annual Fund Operating Expenses - AB High Income Municipal Portfolio
May 31, 2025
Class A  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 0.25%
Component1 Other Expenses 0.02%
Component2 Other Expenses 0.33%
Component3 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.38%
Expenses (as a percentage of Assets) 1.12% [2]
Class C  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 1.00%
Component1 Other Expenses 0.02%
Component2 Other Expenses 0.33%
Component3 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.38%
Expenses (as a percentage of Assets) 1.87% [2]
Advisor Class  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.02%
Component2 Other Expenses 0.33%
Component3 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.38%
Expenses (as a percentage of Assets) 0.87% [2]
Class Z  
Prospectus [Line Items]  
Management Fees (as a percentage of Assets) 0.49%
Distribution and Service (12b-1) Fees 0.00%
Component1 Other Expenses 0.02%
Component2 Other Expenses 0.33%
Component3 Other Expenses 0.03% [1]
Other Expenses (as a percentage of Assets): 0.38%
Expenses (as a percentage of Assets) 0.87% [2]
[1]
“Other Expenses” includes acquired fund fees and expenses totaling less than .01%.
[2] If interest expense were excluded, Total Annual Portfolio Operating Expenses would be as follows: Class A Class C Advisor Class Class Z .79% 1.54% .54% .54%