SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF REGISTRANT (Statement of Operations)(Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenues
Management and financial advice fees									$ 6,392	$ 5,778	$ 5,950
Other revenues									1,010	1,095	1,260
Total revenues									12,075	11,735	12,200
Banking and deposit interest expense									48	39	30
Total net revenues	$ 3,160	$ 2,981	$ 2,985	$ 2,901	$ 3,062	$ 2,998	$ 2,871	$ 2,765	12,027	11,696	12,170
Expenses
Benefits, claims, losses and settlement expenses									2,233	2,646	2,261
Distribution expenses									3,399	3,202	3,276
Interest and debt expense									207	241	387
General and administrative expense									3,051	2,977	3,082
Total expenses									9,813	10,104	10,028
Income tax benefit									734	278	455
Net income attributable to Ameriprise Financial									1,480	1,314	1,562
Other comprehensive income (loss), net of tax									29	(59)	(469)
Comprehensive income attributable to Ameriprise Financial									1,509	1,255	1,153
Ameriprise Financial, Inc:
Revenues
Management and financial advice fees									(1)	(1)	(1)
Net investment income									11	14	2
Other revenues									11	9	14
Total revenues									21	22	15
Banking and deposit interest expense									5	1	0
Total net revenues									16	21	15
Expenses
Benefits, claims, losses and settlement expenses									76	41	13
Distribution expenses									18	0	0
Interest and debt expense									116	113	124
General and administrative expense									249	192	193
Total expenses									459	346	330
Pretax loss before equity in earnings of subsidiaries									(443)	(325)	(315)
Income tax benefit									(47)	(146)	(123)
Loss before equity in earnings of subsidiaries									(396)	(179)	(192)
Equity in earnings of subsidiaries									1,876	1,493	1,754
Net income attributable to Ameriprise Financial									1,480	1,314	1,562
Other comprehensive income (loss), net of tax									29	(59)	(409)
Comprehensive income attributable to Ameriprise Financial									$ 1,509	$ 1,255	$ 1,153