Changes in Shareholders' Equity (Details 3) - USD ($) shares in Millions, $ in Millions	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015	Apr. 28, 2014
Stock repurchase program, authorized amount			$ 2,500	$ 2,500
Remaining balance under stock repurchase program	$ 1,300
Number of shares reacquired through surrender of restricted shares	0.3	0.4
Value of shares reacquired through surrender of restricted shares	$ 29	$ 48
Number of shares reacquired through net settlement options	0.3	0.7
Aggregate value of shares reacquired through net settlement options	$ 31	$ 89
Treasury shares reissued for restricted stock award grants and Ameriprise Financial Franchise Advisor Deferred Compensation Plan	0.9	1.0
Open Market Share Repurchases [Member]
Repurchase of common shares (in shares)	13.7	9.8
Repurchase of common shares	$ 1,300	$ 1,200