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Investments - Available-for-Sale Securities by Type (Details) - Ameriprise Financial - USD ($) $ in Millions	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
Investments
Amortized Cost	$ 35,817		$ 30,541
Gross Unrealized Gains	389		1,644
Gross Unrealized Losses	(1,916)		(134)
Allowance for Credit Losses	(1)	$ (1)	(1)	$ 0	$ 0	$ (11)
Fair Value	34,289		32,050
Accrued interest excluded from amortized cost basis	167		140
Assets pledged to meet contractual obligations
Investments
Fair Value	3,300		3,100
Assets pledged to meet contractual obligations, which may be sold, pledged or rehypothecated by the counterparty
Investments
Fair Value	478		314
Corporate debt securities
Investments
Amortized Cost	9,308		8,737
Gross Unrealized Gains	267		1,243
Gross Unrealized Losses	(637)		(48)
Allowance for Credit Losses	0	0	0	0	0	(10)
Fair Value	8,938		9,932
Residential mortgage backed securities
Investments
Amortized Cost	14,074		10,927
Gross Unrealized Gains	8		67
Gross Unrealized Losses	(809)		(50)
Allowance for Credit Losses	0		0
Fair Value	13,273		10,944
Commercial mortgage backed securities
Investments
Amortized Cost	5,563		4,950
Gross Unrealized Gains	1		59
Gross Unrealized Losses	(313)		(23)
Allowance for Credit Losses	0		0
Fair Value	5,251		4,986
Asset backed securities
Investments
Amortized Cost	4,818		3,639
Gross Unrealized Gains	12		26
Gross Unrealized Losses	(135)		(11)
Allowance for Credit Losses	0	0	0	0	0	(1)
Fair Value	4,695		3,654
State and municipal obligations
Investments
Amortized Cost	807		850
Gross Unrealized Gains	101		244
Gross Unrealized Losses	(16)		(1)
Allowance for Credit Losses	(1)	$ (1)	(1)	$ 0	$ 0	$ 0
Fair Value	891		1,092
U.S. government and agencies obligations
Investments
Amortized Cost	1,158		1,301
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(1)		0
Allowance for Credit Losses	0		0
Fair Value	1,157		1,301
Foreign government bonds and obligations
Investments
Amortized Cost	53		88
Gross Unrealized Gains	0		5
Gross Unrealized Losses	(3)		(1)
Allowance for Credit Losses	0		0
Fair Value	50		92
Other securities
Investments
Amortized Cost	36		49
Gross Unrealized Gains	0		0
Gross Unrealized Losses	(2)		0
Allowance for Credit Losses	0		0
Fair Value	$ 34		$ 49