Investments - Available-for Sale Securities in Continuous Unrealized Loss Position (Details) - Ameriprise Financial $ in Millions	Mar. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Number of securities
Less than 12 months | security	843	1,512
12 months or more | security	1,113	512
Total | security	1,956	2,024
Fair Value
Less than 12 months	$ 14,514	$ 24,196
12 months or more	16,814	8,491
Total	31,328	32,687
Unrealized Losses
Less than 12 months	(386)	(1,360)
12 months or more	(2,044)	(1,480)
Total	$ (2,430)	$ (2,840)
Available -for-Sale Securities with gross unrealized losses considered investment grade (as a percent)	96.00%	95.00%
Corporate debt securities
Number of securities
Less than 12 months | security	270	457
12 months or more | security	244	108
Total | security	514	565
Fair Value
Less than 12 months	$ 3,759	$ 5,782
12 months or more	2,960	1,575
Total	6,719	7,357
Unrealized Losses
Less than 12 months	(155)	(458)
12 months or more	(467)	(365)
Total	$ (622)	$ (823)
Residential mortgage backed securities
Number of securities
Less than 12 months | security	350	589
12 months or more | security	486	244
Total | security	836	833
Fair Value
Less than 12 months	$ 6,373	$ 9,407
12 months or more	7,418	4,076
Total	13,791	13,483
Unrealized Losses
Less than 12 months	(167)	(577)
12 months or more	(1,080)	(813)
Total	$ (1,247)	$ (1,390)
Commercial mortgage backed securities
Number of securities
Less than 12 months | security	98	249
12 months or more | security	243	101
Total | security	341	350
Fair Value
Less than 12 months	$ 1,936	$ 3,857
12 months or more	3,571	1,802
Total	5,507	5,659
Unrealized Losses
Less than 12 months	(37)	(220)
12 months or more	(369)	(219)
Total	$ (406)	$ (439)
Asset backed securities
Number of securities
Less than 12 months | security	101	145
12 months or more | security	87	31
Total | security	188	176
Fair Value
Less than 12 months	$ 2,357	$ 4,413
12 months or more	2,745	977
Total	5,102	5,390
Unrealized Losses
Less than 12 months	(21)	(86)
12 months or more	(112)	(72)
Total	$ (133)	$ (158)
State and municipal obligations
Number of securities
Less than 12 months | security	17	48
12 months or more | security	51	27
Total | security	68	75
Fair Value
Less than 12 months	$ 72	$ 134
12 months or more	110	60
Total	182	194
Unrealized Losses
Less than 12 months	(5)	(16)
12 months or more	(15)	(11)
Total	$ (20)	$ (27)
U.S. government and agencies obligations
Number of securities
Less than 12 months | security		13
12 months or more | security		0
Total | security		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 | security	7	11
12 months or more | security	2	1
Total | security	9	12
Fair Value
Less than 12 months	$ 17	$ 37
12 months or more	10	1
Total	27	38
Unrealized Losses
Less than 12 months	(1)	(2)
12 months or more	(1)	0
Total	$ (2)	$ (2)