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Commitments, Guarantees and Contingencies (Text) (Details 3) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Contingencies    
Minimum interest rate guarantees in fixed accounts 5.00%amp_MinimumInterestRateGuaranteesInFixedAccounts  
Insurance-related Assessments [Member]    
Contingencies    
Liability related to guaranty fund assessments $ 14,000,000us-gaap_LossContingencyUndiscountedAmountOfInsuranceRelatedAssessmentLiability
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_InsuranceRelatedAssessmentsMember
$ 14,000,000us-gaap_LossContingencyUndiscountedAmountOfInsuranceRelatedAssessmentLiability
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_InsuranceRelatedAssessmentsMember
Premium tax asset 12,000,000us-gaap_LossContingencyAccrualInsuranceRelatedAssessmentPremiumTaxOffset
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_InsuranceRelatedAssessmentsMember
11,000,000us-gaap_LossContingencyAccrualInsuranceRelatedAssessmentPremiumTaxOffset
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_InsuranceRelatedAssessmentsMember
Unfavorable regulatory action [Member]    
Contingencies    
Litigation settlement, amount 800,000us-gaap_LitigationSettlementAmount
/ us-gaap_LossContingenciesByNatureOfContingencyAxis
= us-gaap_UnfavorableRegulatoryActionMember
 
Roger Krueger, et al. vs. Ameriprise Financial [Member]    
Contingencies    
Damages sought by plaintiffs 20,000,000us-gaap_LossContingencyDamagesSoughtValue
/ us-gaap_LitigationCaseAxis
= amp_RogerKruegeretal.vs.AmeripriseFinancialMember
 
Otkritie Capital International LTD and JSC Otkririe Holding v. Threadneedle Asset Management LTD. and Threadneedle Management Services Ltd. [Member]    
Contingencies    
Damages sought by plaintiffs $ 120,000,000us-gaap_LossContingencyDamagesSoughtValue
/ us-gaap_LitigationCaseAxis
= amp_OtkritieCapitalInternationalLTDandJSCOtkririeHoldingv.ThreadneedleAssetManagementLTD.andThreadneedleManagementServicesLtd.Member