Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - Ameriprise Financial $ in Millions	Dec. 31, 2022 USD ($) position	Dec. 31, 2021 USD ($) position
Number of Securities
Less than 12 months | position	1,512	490
12 months or more | position	512	91
Total | position	2,024	581
Fair Value
Less than 12 months	$ 24,196	$ 12,001
12 months or more	8,491	533
Total	32,687	12,534
Unrealized losses
Less than 12 months	(1,360)	(125)
12 months or more	(1,480)	(9)
Total	$ (2,840)	$ (134)
Available -for-sale securities with gross unrealized losses considered investment grade	95.00%	96.00%
Corporate debt securities
Number of Securities
Less than 12 months | position	457	110
12 months or more | position	108	14
Total | position	565	124
Fair Value
Less than 12 months	$ 5,782	$ 2,056
12 months or more	1,575	81
Total	7,357	2,137
Unrealized losses
Less than 12 months	(458)	(43)
12 months or more	(365)	(5)
Total	$ (823)	$ (48)
Residential mortgage backed securities
Number of Securities
Less than 12 months | position	589	206
12 months or more | position	244	56
Total | position	833	262
Fair Value
Less than 12 months	$ 9,407	$ 5,808
12 months or more	4,076	191
Total	13,483	5,999
Unrealized losses
Less than 12 months	(577)	(48)
12 months or more	(813)	(2)
Total	$ (1,390)	$ (50)
Commercial mortgage backed securities
Number of Securities
Less than 12 months | position	249	102
12 months or more | position	101	9
Total | position	350	111
Fair Value
Less than 12 months	$ 3,857	$ 2,184
12 months or more	1,802	139
Total	5,659	2,323
Unrealized losses
Less than 12 months	(220)	(22)
12 months or more	(219)	(1)
Total	$ (439)	$ (23)
Asset backed securities
Number of Securities
Less than 12 months | position	145	41
12 months or more | position	31	6
Total | position	176	47
Fair Value
Less than 12 months	$ 4,413	$ 1,883
12 months or more	977	118
Total	5,390	2,001
Unrealized losses
Less than 12 months	(86)	(11)
12 months or more	(72)	0
Total	$ (158)	$ (11)
State and municipal obligations
Number of Securities
Less than 12 months | position	48	26
12 months or more | position	27	0
Total | position	75	26
Fair Value
Less than 12 months	$ 134	$ 64
12 months or more	60	0
Total	194	64
Unrealized losses
Less than 12 months	(16)	(1)
12 months or more	(11)	0
Total	$ (27)	$ (1)
U.S. government and agency obligations
Number of Securities
Less than 12 months | position	13
12 months or more | position	0
Total | position	13
Fair Value
Less than 12 months	$ 566
12 months or more	0
Total	566
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 | position	11	5
12 months or more | position	1	6
Total | position	12	11
Fair Value
Less than 12 months	$ 37	$ 6
12 months or more	1	4
Total	38	10
Unrealized losses
Less than 12 months	(2)	0
12 months or more	0	(1)
Total	$ (2)	$ (1)