Recent Accounting Pronouncements - Adoption of New Accounting Standard (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended				12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022		Mar. 31, 2021	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Assets
Market risk benefits	$ 990	$ 742			$ 1,015	[1]	$ 539
Deferred acquisition costs	2,754				2,777	[1]	2,844
Total assets	166,640				158,852	[1]	177,735
Liabilities:
Policyholder account balances, future policy benefits and claims	34,932				34,132	[1]	35,023
Market risk benefits	2,123	2,583			2,118	[1]	3,440
Liabilities	162,496				155,049	[1]	172,898
Equity:
Retained earnings	20,197				19,918	[1]	17,322
Accumulated other comprehensive income (loss), net of tax	(1,985)				(2,546)	[1]	(642)
Equity	4,144	4,524			3,803	[1]	4,837	[2]
Total liabilities and equity	166,640				158,852	[1]	177,735
Revenues
Premiums, policy and contract charges	362	338	[3]	$ 338	1,397		221
Total revenues	3,845	3,627	[3]	3,346	14,334		13,389
Total net revenues	3,742	3,625	[3]	3,341	14,258		13,377
Benefits and expenses
Distribution expenses	1,226	1,300	[3]	1,178	4,935		5,028
Benefits, claims, losses and settlement expenses	301	32	[3]	240	242		(156)
Remeasurement (gains) losses of future policy benefit reserves	(5)	(6)	[3]	(40)	1		(52)
Change in fair value of market risk benefits	489	100	[3]	(887)	311		(113)
Amortization of deferred acquisition costs	62	65	[3]	66	252		259
Total expenses	3,246	2,619	[3]	1,581	10,327		9,192
Pretax income	496	1,006	[3]	1,760	3,931		4,185
Income tax provision	79	181	[3]	325	782		768
Net income	$ 417	$ 825	[3]	$ 1,435	$ 3,149		$ 3,417
Earnings per share
Basic (in dollars per share)	$ 3.86	$ 7.26	[3]	$ 11.98	$ 28.29		$ 29.13
Diluted (in dollars per share)	$ 3.79	$ 7.10	[3]	$ 11.74	$ 27.70		$ 28.48
Distribution fees
Revenues
Revenue from contracts with customers	$ 517	$ 446	[3]		$ 1,939		$ 1,828
Previously Reported
Assets
Market risk benefits					0		0
Deferred acquisition costs					3,160		2,782
Total assets					158,468		175,910
Liabilities:
Policyholder account balances, future policy benefits and claims					36,067		35,750
Market risk benefits					0		0
Liabilities					154,855		169,969
Equity:
Retained earnings					19,531		17,525
Accumulated other comprehensive income (loss), net of tax					(2,349)		259
Equity					3,613		5,941
Total liabilities and equity					158,468		175,910
Revenues
Premiums, policy and contract charges		368		$ 347	1,411		273
Total revenues		3,657		3,355	14,347		13,443
Total net revenues		3,655		3,350	14,271		13,431
Benefits and expenses
Distribution expenses		1,297		1,175	4,923		5,015
Benefits, claims, losses and settlement expenses		211		653	1,372		716
Remeasurement (gains) losses of future policy benefit reserves		0		0	0		0
Change in fair value of market risk benefits		0		0	0		0
Amortization of deferred acquisition costs		96		5	208		124
Total expenses		2,732		2,857	11,089		10,081
Pretax income		923		493	3,182		3,350
Income tax provision		162		56	623		590
Net income		$ 761		$ 437	$ 2,559		$ 2,760
Earnings per share
Basic (in dollars per share)		$ 6.69		$ 3.65	$ 22.99		$ 23.53
Diluted (in dollars per share)		$ 6.55		$ 3.58	$ 22.51		$ 23.00
Previously Reported | Distribution fees
Revenues
Revenue from contracts with customers					$ 1,938		$ 1,830
Adjustment
Assets
Market risk benefits					1,015		539
Deferred acquisition costs					(383)		62
Total assets					384		1,825
Liabilities:
Policyholder account balances, future policy benefits and claims					(1,935)		(727)
Market risk benefits					2,118		3,440
Liabilities					194		2,929
Equity:
Retained earnings					387		(203)
Accumulated other comprehensive income (loss), net of tax					(197)		(901)
Equity					190		(1,104)		$ (1,900)
Total liabilities and equity					384		1,825
Revenues
Premiums, policy and contract charges		$ (30)		$ (9)	(14)		(52)
Total revenues		(30)		(9)	(13)		(54)
Total net revenues		(30)		(9)	(13)		(54)
Benefits and expenses
Distribution expenses		3		3	12		13
Benefits, claims, losses and settlement expenses		(179)		(413)	(1,130)		(872)
Remeasurement (gains) losses of future policy benefit reserves		(6)		(40)	1		(52)
Change in fair value of market risk benefits		100		(887)	311		(113)
Amortization of deferred acquisition costs		(31)		61	44		135
Total expenses		(113)		(1,276)	(762)		(889)
Pretax income		83		1,267	749		835
Income tax provision		19		269	159		178
Net income		$ 64		$ 998	$ 590		$ 657
Earnings per share
Basic (in dollars per share)		$ 0.57		$ 8.33	$ 5.30		$ 5.60
Diluted (in dollars per share)		$ 0.55		$ 8.16	$ 5.19		$ 5.48
Adjustment | Distribution fees
Revenues
Revenue from contracts with customers					$ 1		$ (2)
Ameriprise Financial
Assets
Receivables	15,378				15,595	[1]	17,132
Receivables, allowance for credit losses	73				75		55
Other assets	10,119				9,277	[1]	11,672
Liabilities:
Other liabilities	$ 7,315				6,316	[1]	8,857
Ameriprise Financial | Previously Reported
Assets
Receivables					15,779		16,205
Other assets					9,341		11,375
Liabilities:
Other liabilities					6,305		8,641
Ameriprise Financial | Adjustment
Assets
Receivables					(184)		927
Other assets					(64)		297
Liabilities:
Other liabilities					$ 11		$ 216

[1] Certain prior period amounts have been restated. See Note 3 for more information.

[2] Certain prior period amounts have been restated. See Note 3 for more information.

[3] Certain prior period amounts have been restated. See Note 3 for more information.