Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - Ameriprise Financial $ in Millions	Dec. 31, 2021 USD ($) Positions	Dec. 31, 2020 USD ($) Positions
Number of Securities
Less than 12 months | Positions	490	153
12 months or more | Positions	91	122
Total | Positions	581	275
Fair Value
Less than 12 months	$ 12,001	$ 2,193
12 months or more	533	1,046
Total	12,534	3,239
Unrealized losses
Less than 12 months	(125)	(17)
12 months or more	(9)	(17)
Total	$ (134)	$ (34)
Available -for-Sale Securities with gross unrealized losses considered investment grade (as a percent)	96.00%	92.00%
Corporate debt securities
Number of Securities
Less than 12 months | Positions	110	26
12 months or more | Positions	14	11
Total | Positions	124	37
Fair Value
Less than 12 months	$ 2,056	$ 228
12 months or more	81	19
Total	2,137	247
Unrealized losses
Less than 12 months	(43)	(1)
12 months or more	(5)	(1)
Total	$ (48)	$ (2)
Residential mortgage backed securities
Number of Securities
Less than 12 months | Positions	206	72
12 months or more | Positions	56	71
Total | Positions	262	143
Fair Value
Less than 12 months	$ 5,808	$ 833
12 months or more	191	391
Total	5,999	1,224
Unrealized losses
Less than 12 months	(48)	(2)
12 months or more	(2)	(2)
Total	$ (50)	$ (4)
Commercial mortgage backed securities
Number of Securities
Less than 12 months | Positions	102	35
12 months or more | Positions	9	19
Total | Positions	111	54
Fair Value
Less than 12 months	$ 2,184	$ 781
12 months or more	139	393
Total	2,323	1,174
Unrealized losses
Less than 12 months	(22)	(11)
12 months or more	(1)	(10)
Total	$ (23)	$ (21)
Asset backed securities
Number of Securities
Less than 12 months | Positions	41	17
12 months or more | Positions	6	13
Total | Positions	47	30
Fair Value
Less than 12 months	$ 1,883	$ 344
12 months or more	118	231
Total	2,001	575
Unrealized losses
Less than 12 months	(11)	(3)
12 months or more		(2)
Total	$ (11)	$ (5)
State and municipal obligations
Number of Securities
Less than 12 months | Positions	26	2
12 months or more | Positions		1
Total | Positions	26	3
Fair Value
Less than 12 months	$ 64	$ 4
12 months or more		4
Total	64	8
Unrealized losses
Less than 12 months	(1)
12 months or more		(1)
Total	$ (1)	$ (1)
Foreign government bonds and obligations
Number of Securities
Less than 12 months | Positions	5	1
12 months or more | Positions	6	7
Total | Positions	11	8
Fair Value
Less than 12 months	$ 6	$ 3
12 months or more	4	8
Total	10	11
Unrealized losses
12 months or more	(1)	(1)
Total	$ (1)	$ (1)