Changes in Shareholders' Equity (Details 3) - USD ($) shares in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Stock repurchase program, authorized amount	$ 2,500		$ 2,500
Remaining balance under stock repurchase program	$ 220
Number of shares reacquired through surrender of restricted shares	0.2	0.3
Value of shares reacquired through surrender of restricted shares	$ 30	$ 29
Number of shares reacquired through net settlement options	1.1	0.2
Aggregate value of shares reacquired through net settlement options	$ 138	$ 18
Treasury shares reissued for restricted stock award grants and Ameriprise Financial Franchise Advisor Deferred Compensation Plan	0.8	0.9
Open market share repurchases [Member]
Repurchase of common shares (in shares)	5.7	9.8
Repurchase of common shares	$ 709	$ 895