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Retirement Plans and Profit Sharing Arrangements (Threadneedle Profit Sharing Plan) (Details 10) (Profit sharing plan [Member], USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Profit sharing plan [Member]
      
Defined Benefit, Threadneedle Profit Sharing Plan [Abstract]      
Percentage of profit sharing 30.00%amp_PercentageOfProfitSharing
/ us-gaap_PlanNameAxis
= amp_ProfitSharingPlanMember		    
Compensation expense (benefit) related to the employee profit sharing plan $ 66amp_CompensationExpenseForProfitSharingPlan
/ us-gaap_PlanNameAxis
= amp_ProfitSharingPlanMember		 $ 69amp_CompensationExpenseForProfitSharingPlan
/ us-gaap_PlanNameAxis
= amp_ProfitSharingPlanMember		 $ 67amp_CompensationExpenseForProfitSharingPlan
/ us-gaap_PlanNameAxis
= amp_ProfitSharingPlanMember