Shareholders' Equity Changes in Stockholders' Equity (Details 3) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Apr. 28, 2014
Stock repurchase program, authorized amount	$ 2,500			$ 2,500
Remaining balance under stock repurchase program	$ 2,604
Number of shares reacquired through surrender of restricted shares	0.4	0.8	0.4
Value of shares reacquired through surrender of restricted shares	$ 49	$ 92	$ 26
Number of shares reacquired through net settlement of options	0.7	2.1	2.9
Aggregate value of shares reacquired through net settlement of options	$ 92	$ 252	$ 227
Treasury shares reissued for restricted stock award grants and Ameriprise Financial Franchise Advisor Deferred Compensation Plan	1.0	1.6	1.9
Open Market Share Repurchases [Member]
Repurchase of common shares (in shares)	13.9	11.8	17.8
Repurchase of common shares	$ 1,700	$ 1,400	$ 1,500