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Disclosure - Other Expenses Interest Expense [Member] Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 310003 - Disclosure - Other Expenses Interest Expense [Member] Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 310004 - Disclosure - Other Expenses Interest Expense [Member] Investment Strategy link:presentationLink link:definitionLink link:calculationLink 310005 - Disclosure - Other Expenses Interest Expense [Member] Investment Risks link:presentationLink link:definitionLink link:calculationLink 310006 - Disclosure - Other Expenses Interest Expense [Member] Performance Management link:presentationLink link:definitionLink link:calculationLink 320010 - Disclosure - Other Expenses Interest Expense [Member] Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 320020 - Disclosure - Other Expenses Interest Expense [Member] Annual Fund Operating Expenses link:presentationLink link:definitionLink link:calculationLink 320030 - Disclosure - Other Expenses Interest Expense [Member] Expense Example link:presentationLink link:definitionLink link:calculationLink 320040 - Disclosure - Other Expenses Interest Expense [Member] Expense Example, No Redemption link:presentationLink link:definitionLink link:calculationLink 320045 - Disclosure - Other Expenses Interest Expense [Member] Risks Data link:presentationLink link:definitionLink link:calculationLink 320050 - Disclosure - Other Expenses Interest Expense [Member] Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320060 - Disclosure - Other Expenses Interest Expense [Member] Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 320070 - Disclosure - Other Expenses Interest Expense [Member] Market Index Performance link:presentationLink link:definitionLink link:calculationLink 310000 - Disclosure - Other Expenses Interest Expense [Member] N-1A Cover link:presentationLink link:definitionLink link:calculationLink 310001 - Disclosure - Other Expenses Interest Expense [Member] N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 410002 - Disclosure - Other Expenses Interest Expense [Member] Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 410003 - Disclosure - Other Expenses Interest Expense [Member] Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 410004 - Disclosure - Other Expenses Interest Expense [Member] Investment Strategy link:presentationLink link:definitionLink link:calculationLink 410005 - Disclosure - Other Expenses Interest Expense [Member] Investment Risks link:presentationLink link:definitionLink link:calculationLink 410006 - Disclosure - Other Expenses Interest Expense [Member] Performance Management link:presentationLink link:definitionLink link:calculationLink 420010 - Disclosure - Other Expenses Interest Expense [Member] Shareholder Fees link:presentationLink link:definitionLink link:calculationLink 420020 - 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Disclosure - Other Expenses Interest Expense [Member] Market Index Performance link:presentationLink link:definitionLink link:calculationLink 510000 - Disclosure - Other Expenses Interest Expense [Member] N-1A Cover link:presentationLink link:definitionLink link:calculationLink 510001 - Disclosure - Other Expenses Interest Expense [Member] N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 610002 - Disclosure - Other Expenses Interest Expense [Member] Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 610003 - Disclosure - Other Expenses Interest Expense [Member] Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 610004 - Disclosure - Other Expenses Interest Expense [Member] Investment Strategy link:presentationLink link:definitionLink link:calculationLink 610005 - Disclosure - Other Expenses Interest Expense [Member] Investment Risks link:presentationLink link:definitionLink link:calculationLink 610006 - 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Disclosure - Other Expenses Interest Expense [Member] Average Annual Total Returns link:presentationLink link:definitionLink link:calculationLink 620070 - Disclosure - Other Expenses Interest Expense [Member] Market Index Performance link:presentationLink link:definitionLink link:calculationLink 610000 - Disclosure - Other Expenses Interest Expense [Member] N-1A Cover link:presentationLink link:definitionLink link:calculationLink 610001 - Disclosure - Other Expenses Interest Expense [Member] N-1A Supplement link:presentationLink link:definitionLink link:calculationLink 710002 - Disclosure - AB Intermediate Municipal Portfolios [Member] Investment Objectives and Goals link:presentationLink link:definitionLink link:calculationLink 710003 - Disclosure - AB Intermediate Municipal Portfolios [Member] Fees and Expenses link:presentationLink link:definitionLink link:calculationLink 710004 - Disclosure - AB Intermediate Municipal Portfolios [Member] Investment Strategy link:presentationLink link:definitionLink link:calculationLink 710005 - 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