000000 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 000011 - Document - Risk/Return Summary {Unlabeled} - AllianceBernstein International Value Portfolio link:presentationLink link:calculationLink link:definitionLink 000012 - Schedule - Shareholder Fees {- AllianceBernstein International Value Portfolio} link:presentationLink link:calculationLink link:definitionLink 000013 - Schedule - Annual Portfolio Operating Expenses {- AllianceBernstein International Value Portfolio} link:presentationLink link:calculationLink link:definitionLink 000014 - Schedule - Expense Example {- AllianceBernstein International Value Portfolio} link:presentationLink link:calculationLink link:definitionLink 000015 - Schedule - Expense Example, No Redemption {Transposed} {- AllianceBernstein International Value Portfolio} link:presentationLink link:calculationLink link:definitionLink 000016 - Schedule - Annual Total Returns - AllianceBernstein International Value Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000017 - Schedule - Average Annual Total Returns {Transposed} {- AllianceBernstein International Value Portfolio} link:presentationLink link:calculationLink link:definitionLink 000018 - Document - Risk/Return Detail {Unlabeled} - AllianceBernstein International Value Portfolio link:presentationLink link:calculationLink link:definitionLink 000019 - Disclosure - Risk/Return Detail Data {Elements} - AllianceBernstein International Value Portfolio link:presentationLink link:calculationLink link:definitionLink 000021 - Document - Risk/Return Summary {Unlabeled} - AllianceBernstein International Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000022 - Schedule - Shareholder Fees {- AllianceBernstein International Growth Portfolio} link:presentationLink link:calculationLink link:definitionLink 000023 - Schedule - Annual Portfolio Operating Expenses {- AllianceBernstein International Growth Portfolio} link:presentationLink link:calculationLink link:definitionLink 000024 - Schedule - Expense Example {- AllianceBernstein International Growth Portfolio} link:presentationLink link:calculationLink link:definitionLink 000025 - Schedule - Expense Example, No Redemption {Transposed} {- AllianceBernstein International Growth Portfolio} link:presentationLink link:calculationLink link:definitionLink 000026 - Schedule - Annual Total Returns - AllianceBernstein International Growth Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000027 - Schedule - Average Annual Total Returns {Transposed} {- AllianceBernstein International Growth Portfolio} link:presentationLink link:calculationLink link:definitionLink 000028 - Document - Risk/Return Detail {Unlabeled} - AllianceBernstein International Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000029 - Disclosure - Risk/Return Detail Data {Elements} - AllianceBernstein International Growth Portfolio link:presentationLink link:calculationLink link:definitionLink 000031 - Document - Risk/Return Summary {Unlabeled} - AllianceBernstein Global Core Bond Portfolio link:presentationLink link:calculationLink link:definitionLink 000032 - Schedule - Shareholder Fees {- AllianceBernstein Global Core Bond Portfolio} link:presentationLink link:calculationLink link:definitionLink 000033 - Schedule - Annual Fund Operating Expenses {- AllianceBernstein Global Core Bond Portfolio} link:calculationLink link:presentationLink link:definitionLink 000033 - Schedule - Annual Portfolio Operating Expenses {- AllianceBernstein Global Core Bond Portfolio} link:presentationLink link:calculationLink link:definitionLink 000034 - Schedule - Expense Example {- AllianceBernstein Global Core Bond Portfolio} link:presentationLink link:calculationLink link:definitionLink 000035 - Schedule - Expense Example, No Redemption {Transposed} {- AllianceBernstein Global Core Bond Portfolio} link:presentationLink link:calculationLink link:definitionLink 000036 - Schedule - Annual Total Returns - AllianceBernstein Global Core Bond Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000037 - Schedule - Average Annual Total Returns {Transposed} {- AllianceBernstein Global Core Bond Portfolio} link:presentationLink link:calculationLink link:definitionLink 000038 - Document - Risk/Return Detail {Unlabeled} - AllianceBernstein Global Core Bond Portfolio link:presentationLink link:calculationLink link:definitionLink 000039 - Disclosure - Risk/Return Detail Data {Elements} - AllianceBernstein Global Core Bond Portfolio link:presentationLink link:calculationLink link:definitionLink 000041 - Document - Risk/Return Summary {Unlabeled} - AllianceBernstein Volatility Management Portfolio link:presentationLink link:calculationLink link:definitionLink 000042 - Schedule - Shareholder Fees {- AllianceBernstein Volatility Management Portfolio} link:presentationLink link:calculationLink link:definitionLink 000043 - Schedule - Annual Portfolio Operating Expenses {- AllianceBernstein Volatility Management Portfolio} link:presentationLink link:calculationLink link:definitionLink 000044 - Schedule - Expense Example {- AllianceBernstein Volatility Management Portfolio} link:presentationLink link:calculationLink link:definitionLink 000045 - Schedule - Expense Example, No Redemption {Transposed} {- AllianceBernstein Volatility Management Portfolio} link:presentationLink link:calculationLink link:definitionLink 000046 - Schedule - Annual Total Returns - AllianceBernstein Volatility Management Portfolio [BarChart] link:presentationLink link:calculationLink link:definitionLink 000047 - Schedule - Average Annual Total Returns {Transposed} {- AllianceBernstein Volatility Management Portfolio} link:presentationLink link:calculationLink link:definitionLink 000048 - Document - Risk/Return Detail {Unlabeled} - AllianceBernstein Volatility Management Portfolio link:presentationLink link:calculationLink link:definitionLink 000049 - Disclosure - Risk/Return Detail Data {Elements} - AllianceBernstein Volatility Management Portfolio link:presentationLink link:calculationLink link:definitionLink