Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - Ameriprise Financial $ in Millions	Jun. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Number of securities
Less than 12 months | security	1,551	490
12 months or more | security	149	91
Total | security	1,700	581
Fair Value
Less than 12 months	$ 27,246	$ 12,001
12 months or more	1,480	533
Total	28,726	12,534
Unrealized Losses
Less than 12 months	(1,731)	(125)
12 months or more	(185)	(9)
Total	$ (1,916)	$ (134)
Available -for-Sale Securities with gross unrealized losses considered investment grade (as a percent)	95.00%	96.00%
Corporate debt securities
Number of securities
Less than 12 months | security	407	110
12 months or more | security	43	14
Total | security	450	124
Fair Value
Less than 12 months	$ 5,351	$ 2,056
12 months or more	460	81
Total	5,811	2,137
Unrealized Losses
Less than 12 months	(528)	(43)
12 months or more	(109)	(5)
Total	$ (637)	$ (48)
Residential mortgage backed securities
Number of securities
Less than 12 months | security	624	206
12 months or more | security	76	56
Total | security	700	262
Fair Value
Less than 12 months	$ 11,567	$ 5,808
12 months or more	618	191
Total	12,185	5,999
Unrealized Losses
Less than 12 months	(761)	(48)
12 months or more	(48)	(2)
Total	$ (809)	$ (50)
Commercial mortgage backed securities
Number of securities
Less than 12 months | security	286	102
12 months or more | security	20	9
Total | security	306	111
Fair Value
Less than 12 months	$ 4,808	$ 2,184
12 months or more	268	139
Total	5,076	2,323
Unrealized Losses
Less than 12 months	(291)	(22)
12 months or more	(22)	(1)
Total	$ (313)	$ (23)
Asset backed securities
Number of securities
Less than 12 months | security	132	41
12 months or more | security	8	6
Total | security	140	47
Fair Value
Less than 12 months	$ 4,244	$ 1,883
12 months or more	129	118
Total	4,373	2,001
Unrealized Losses
Less than 12 months	(130)	(11)
12 months or more	(5)	0
Total	$ (135)	$ (11)
State and municipal obligations
Number of securities
Less than 12 months | security	63	26
12 months or more | security	1	0
Total | security	64	26
Fair Value
Less than 12 months	$ 167	$ 64
12 months or more	4	0
Total	171	64
Unrealized Losses
Less than 12 months	(15)	(1)
12 months or more	(1)	0
Total	$ (16)	$ (1)
U.S. government and agencies obligations
Number of securities
Less than 12 months | security	26
12 months or more | security	0
Total | security	26
Fair Value
Less than 12 months	$ 1,045
12 months or more	0
Total	1,045
Unrealized Losses
Less than 12 months	(1)
12 months or more	0
Total	$ (1)
Foreign government bonds and obligations
Number of securities
Less than 12 months | security	11	5
12 months or more | security	1	6
Total | security	12	11
Fair Value
Less than 12 months	$ 30	$ 6
12 months or more	1	4
Total	31	10
Unrealized Losses
Less than 12 months	(3)	0
12 months or more	0	(1)
Total	$ (3)	$ (1)
Other securities
Number of securities
Less than 12 months | security	2
12 months or more | security	0
Total | security	2
Fair Value
Less than 12 months	$ 34
12 months or more	0
Total	34
Unrealized Losses
Less than 12 months	(2)
12 months or more	0
Total	$ (2)