Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - RiverSource Life $ in Millions	Jun. 30, 2022 USD ($) security	Dec. 31, 2021 USD ($) security
Number of Securities
Less than 12 months | security	829	252
12 months or more | security	66	25
Total | security	895	277
Fair Value
Less than 12 months	$ 10,316	$ 4,138
12 months or more	755	99
Total	11,071	4,237
Unrealized Losses
Less than 12 months	(869)	(72)
12 months or more	(154)	(6)
Total	$ (1,023)	$ (78)
Available -for-Sale Securities with gross unrealized losses considered investment grade (as a percent)	91.00%	92.00%
Corporate debt securities
Number of Securities
Less than 12 months | security	359	102
12 months or more | security	41	14
Total | security	400	116
Fair Value
Less than 12 months	$ 4,965	$ 2,007
12 months or more	450	81
Total	5,415	2,088
Unrealized Losses
Less than 12 months	(515)	(42)
12 months or more	(108)	(5)
Total	$ (623)	$ (47)
Residential mortgage backed securities
Number of Securities
Less than 12 months | security	175	55
12 months or more | security	9	2
Total | security	184	57
Fair Value
Less than 12 months	$ 2,210	$ 1,162
12 months or more	152	1
Total	2,362	1,163
Unrealized Losses
Less than 12 months	(158)	(12)
12 months or more	(25)	0
Total	$ (183)	$ (12)
Commercial mortgage backed securities
Number of Securities
Less than 12 months | security	202	60
12 months or more | security	14	3
Total | security	216	63
Fair Value
Less than 12 months	$ 2,517	$ 809
12 months or more	148	13
Total	2,665	822
Unrealized Losses
Less than 12 months	(163)	(15)
12 months or more	(19)	0
Total	$ (182)	$ (15)
State and municipal obligations
Number of Securities
Less than 12 months | security	54	25
12 months or more | security	1	0
Total | security	55	25
Fair Value
Less than 12 months	$ 157	$ 63
12 months or more	4	0
Total	161	63
Unrealized Losses
Less than 12 months	(15)	(1)
12 months or more	(1)	0
Total	$ (16)	$ (1)
Asset backed securities
Number of Securities
Less than 12 months | security	30	5
12 months or more | security	0	0
Total | security	30	5
Fair Value
Less than 12 months	$ 444	$ 91
12 months or more	0	0
Total	444	91
Unrealized Losses
Less than 12 months	(17)	(2)
12 months or more	0	0
Total	$ (17)	$ (2)
Foreign government bonds and obligations
Number of Securities
Less than 12 months | security	9	5
12 months or more | security	1	6
Total | security	10	11
Fair Value
Less than 12 months	$ 23	$ 6
12 months or more	1	4
Total	24	10
Unrealized Losses
Less than 12 months	(1)	0
12 months or more	(1)	(1)
Total	$ (2)	$ (1)