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Variable Interest Entities (Debt of Consolidated Investment Entities) (Details 5) (Consolidated investment entities [Member], USD $)
In Millions, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Debt and stated interest rates    
Carrying value of debt $ 6,779us-gaap_LongTermDebt $ 6,867us-gaap_LongTermDebt
CLO [Member]    
Debt and stated interest rates    
Carrying value of debt 5,933us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_CLOMember		 6,030us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_CLOMember
Weighted average interest rate 1.30%us-gaap_LongtermDebtWeightedAverageInterestRate
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_CLOMember		 1.30%us-gaap_LongtermDebtWeightedAverageInterestRate
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_CLOMember
Property Fund [Member]    
Debt and stated interest rates    
Carrying value of debt $ 846us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_PropertyFundMember		 $ 837us-gaap_LongTermDebt
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_PropertyFundMember
Weighted average interest rate 2.80%us-gaap_LongtermDebtWeightedAverageInterestRate
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_PropertyFundMember		 2.70%us-gaap_LongtermDebtWeightedAverageInterestRate
/ dei_LegalEntityAxis
= us-gaap_VariableInterestEntityPrimaryBeneficiaryMember
/ amp_VariableInterestEntityTypeAxis
= amp_PropertyFundMember