CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Millions	Total	Total Ameriprise Financial, Inc. Shareholders' Equity [Member]	Common Shares [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Appropriated Retained Earnings of Consolidated Investment Entities [Member]	Treasury Shares [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interests [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cumulative effect of change in accounting policies	$ (1,318)	$ (130)			$ 1	$ (137)		$ 6	$ (1,188)
Beginning balance at Dec. 31, 2015	8,379	7,191	$ 3	$ 7,611	9,525	137	$ (10,338)	253	1,188
Beginning balance (in shares) at Dec. 31, 2015			171,033,260
Comprehensive income (loss) [Abstract]
Net income including portion attributable to noncontrolling interests		699			699
Net income attributable to noncontrolling interest									0
Net income	699
Other comprehensive income, net of tax	379	379						379
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax									0
Other comprehensive income attributable to Ameriprise Financial, net of tax	379
Total comprehensive income	1,078	1,078
Comprehensive income attributable to Ameriprise Financial	1,078
Dividends to shareholders	(244)	(244)			(244)
Repurchase of common shares	(942)	(942)					(942)
Repurchase of common shares (in shares)			(10,301,265)
Share-based compensation plans	110	110		48			62
Share-based compensation plans (in shares)			1,510,227
Ending balance at Jun. 30, 2016	7,063	7,063	$ 3	7,659	9,981		(11,218)	638
Ending balance (in shares) at Jun. 30, 2016			162,242,222
Beginning balance at Dec. 31, 2016	6,292	6,292	$ 3	7,765	10,351	$ 0	(12,027)	200	0
Beginning balance (in shares) at Dec. 31, 2016			154,759,904
Comprehensive income (loss) [Abstract]
Net income including portion attributable to noncontrolling interests		796			796
Net income attributable to noncontrolling interest									0
Net income	796
Other comprehensive income, net of tax	99	99						99
Other comprehensive income (loss) attributable to noncontrolling interest, net of tax									$ 0
Other comprehensive income attributable to Ameriprise Financial, net of tax	99
Total comprehensive income	895	895
Comprehensive income attributable to Ameriprise Financial	895
Dividends to shareholders	(250)	(250)			(250)
Repurchase of common shares	(877)	(877)					(877)
Repurchase of common shares (in shares)			(7,021,250)
Share-based compensation plans	190	190		138			52
Share-based compensation plans (in shares)			2,569,962
Ending balance at Jun. 30, 2017	$ 6,250	$ 6,250	$ 3	$ 7,903	$ 10,897		$ (12,852)	$ 299
Ending balance (in shares) at Jun. 30, 2017			150,308,616