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Investments (Rating info) (Details 4) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Investments    
Number of holdings of other than GNMA, FNMA, and FHLMC having greater than 10% of total equity 0amp_NumberInvestmentHoldingsOfIssuerOtherThanGovernmentSponsoredEnterprisesAsPercentageOfShareholdersEquity  
Ameriprise Financial [Member]    
Investments    
Amount of securities internally rated $ 1,300,000,000amp_FixedMaturityInvestmentsRatedInternally
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
$ 1,400,000,000amp_FixedMaturityInvestmentsRatedInternally
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percentage of GNMA, FNMA and FHLMC securities rated AAA 53.00%amp_MortgageBackedSecuritiesIssuedByGovernmentSponsoredEnterprisesAsPercentageOfAAARatedSecurities
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
52.00%amp_MortgageBackedSecuritiesIssuedByGovernmentSponsoredEnterprisesAsPercentageOfAAARatedSecurities
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
AAA [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 7,511,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
7,500,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Fair value 7,817,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
7,776,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percent of total fair value 26.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
26.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
AA [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 1,603,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
1,581,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Fair value 1,824,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
1,799,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percent of total fair value 6.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
6.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
A [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 5,624,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
6,028,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Fair value 6,294,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
6,668,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percent of total fair value 21.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
22.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingAMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
BBB [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 11,418,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
11,187,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Fair value 12,372,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
12,025,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percent of total fair value 41.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
40.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBBBMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Below investment grade [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 1,808,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
1,762,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Fair value 1,824,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
1,741,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Percent of total fair value 6.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
6.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ us-gaap_ExternalCreditRatingByGroupingAxis
= amp_CreditRatingBelowInvestmentGradeMember
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
Total fixed maturities [Member] | Ameriprise Financial [Member]    
Investments    
Amortized cost 27,964,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember
28,058,000,000us-gaap_AvailableForSaleDebtSecuritiesAmortizedCostBasis
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember
Fair value $ 30,131,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember
$ 30,009,000,000us-gaap_AvailableForSaleSecuritiesDebtSecurities
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember
Percent of total fair value 100.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember
100.00%amp_FixedMaturityPercentageOfFairValueByCreditRatingClassification
/ dei_LegalEntityAxis
= us-gaap_ConsolidatedEntityExcludingVariableInterestEntitiesVIEMember
/ us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis
= us-gaap_FixedMaturitiesMember