Recent Accounting Pronouncements - Adoption of New Accounting Standard (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022		Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021		Dec. 31, 2020
Assets
Market risk benefits	$ 1,427				$ 1,015	[1]				$ 1,427	$ 1,015	[1]	$ 539
Deferred acquisition costs	2,713				2,777	[1]				2,713	2,777	[1]	2,844
Total assets	175,191				158,852	[1]				175,191	158,852	[1]	177,735
Liabilities:
Policyholder account balances, future policy benefits and claims	37,545				34,132	[1]				37,545	34,132	[1]	35,023
Market risk benefits	1,762				2,118	[1]				1,762	2,118	[1]	3,440
Liabilities	170,462				155,049	[1]				170,462	155,049	[1]	172,898
Equity:
Retained earnings	21,905				19,918	[1]				21,905	19,918	[1]	17,322
Accumulated other comprehensive income (loss), net of tax	(1,766)				(2,546)	[1]				(1,766)	(2,546)	[1]	(642)
Total equity	4,729				3,803	[1],[2]				4,729	3,803	[1],[2]	4,837	[2]	$ 6,131
Total liabilities and equity	175,191				158,852	[1]				175,191	158,852	[1]	177,735
Revenues
Premiums, policy and contract charges										1,539	1,397	[3]	221	[3]
Total revenues										16,096	14,334	[3]	13,389	[3]
Total net revenues	3,992	$ 3,925	$ 3,876	$ 3,742	3,663		$ 3,484	$ 3,486	$ 3,625	15,535	14,258	[3]	13,377	[3]
Benefits and expenses
Distribution expenses										5,078	4,935	[3]	5,028	[3]
Benefits, claims, losses and settlement expenses										1,350	242	[3]	(156)	[3]
Remeasurement (gains) losses of future policy benefit reserves										(20)	1	[3]	(52)	[3]
Change in fair value of market risk benefits										798	311	[3]	(113)	[3]
Amortization of deferred acquisition costs											252		259
Total expenses										12,301	10,327	[3]	9,192	[3]
Pretax income	494	1,117	1,127	496	817		1,335	773	1,006	3,234	3,931	[3]	4,185	[3]
Income tax provision										678	782	[3]	768	[3]
Net income	$ 377	$ 872	$ 890	$ 417	$ 649		$ 1,061	$ 614	$ 825	$ 2,556	$ 3,149	[3],[4]	$ 3,417	[3],[4]
Earnings per share
Basic (in dollars per share)	$ 3.64	$ 8.31	$ 8.36	$ 3.86	$ 5.96		$ 9.60	$ 5.47	$ 7.26	$ 24.18	$ 28.29	[3]	$ 29.13	[3]
Diluted (in dollars per share)	$ 3.57	$ 8.14	$ 8.21	$ 3.79	$ 5.83		$ 9.41	$ 5.37	$ 7.10	$ 23.71	$ 27.70	[3]	$ 28.48	[3]
Distribution fees
Revenues
Revenue from contracts with customers										$ 1,931	$ 1,939	[3]	$ 1,828	[3]
Previously Reported
Assets
Market risk benefits					$ 0						0		0
Deferred acquisition costs					3,160						3,160		2,782
Total assets					158,468						158,468		175,910
Liabilities:
Policyholder account balances, future policy benefits and claims					36,067						36,067		35,750
Market risk benefits					0						0		0
Liabilities					154,855						154,855		169,969
Equity:
Retained earnings					19,531						19,531		17,525
Accumulated other comprehensive income (loss), net of tax					(2,349)						(2,349)		259
Total equity					3,613						3,613		5,941
Total liabilities and equity					158,468						158,468		175,910
Revenues
Premiums, policy and contract charges											1,411		273
Total revenues											14,347		13,443
Total net revenues											14,271		13,431
Benefits and expenses
Distribution expenses											4,923		5,015
Benefits, claims, losses and settlement expenses											1,372		716
Remeasurement (gains) losses of future policy benefit reserves											0		0
Change in fair value of market risk benefits											0		0
Amortization of deferred acquisition costs											208		124
Total expenses											11,089		10,081
Pretax income											3,182		3,350
Income tax provision											623		590
Net income											$ 2,559		$ 2,760
Earnings per share
Basic (in dollars per share)											$ 22.99		$ 23.53
Diluted (in dollars per share)											$ 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						1,015		539
Deferred acquisition costs					(383)						(383)		62
Total assets					384						384		1,825
Liabilities:
Policyholder account balances, future policy benefits and claims					(1,935)						(1,935)		(727)
Market risk benefits					2,118						2,118		3,440
Liabilities					194						194		2,929
Equity:
Retained earnings					387						387		(203)
Accumulated other comprehensive income (loss), net of tax					(197)						(197)		(901)
Total equity					190						190		(1,104)		$ (1,900)
Total liabilities and equity					384						384		1,825
Revenues
Premiums, policy and contract charges											(14)		(52)
Total revenues											(13)		(54)
Total net revenues											(13)		(54)
Benefits and expenses
Distribution expenses											12		13
Benefits, claims, losses and settlement expenses											(1,130)		(872)
Remeasurement (gains) losses of future policy benefit reserves											1		(52)
Change in fair value of market risk benefits											311		(113)
Amortization of deferred acquisition costs											44		135
Total expenses											(762)		(889)
Pretax income											749		835
Income tax provision											159		178
Net income											$ 590		$ 657
Earnings per share
Basic (in dollars per share)											$ 5.30		$ 5.60
Diluted (in dollars per share)											$ 5.19		$ 5.48
Adjustment | Distribution fees
Revenues
Revenue from contracts with customers											$ 1		$ (2)
Ameriprise Financial
Assets
Receivables	$ 15,078				15,595	[1]				15,078	15,595	[1]	17,132
Receivables, allowance for credit losses	81				75					81	75		55
Other assets	11,700				9,277	[1]				11,700	9,277	[1]	11,672
Liabilities:
Other liabilities	$ 7,974				6,316	[1]				$ 7,974	6,316	[1]	8,857
Ameriprise Financial | Previously Reported
Assets
Receivables					15,779						15,779		16,205
Other assets					9,341						9,341		11,375
Liabilities:
Other liabilities					6,305						6,305		8,641
Ameriprise Financial | Adjustment
Assets
Receivables					(184)						(184)		927
Other assets					(64)						(64)		297
Liabilities:
Other liabilities					$ 11						$ 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.

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