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Investments - Available-for-Sale Securities by Type (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Investments
Accrued interest excluded from amortized cost basis, location	Receivables	Receivables
Ameriprise Financial
Investments
Amortized Cost	$ 43,384	$ 30,541
Gross Unrealized Gains	289	1,644
Gross Unrealized Losses	(2,840)	(134)
Allowance for Credit Loss	(22)	(1)	$ (11)	$ 0
Fair Value	40,811	32,050
Accrued interest excluded from amortized cost basis	237	140
Ameriprise Financial \| Assets pledged to meet contractual obligations
Investments
Fair Value	3,300	3,100
Ameriprise Financial \| Assets pledged to meet contractual obligations, which may be sold, pledged or rehypothecated by the counterparty
Investments
Fair Value	302	314
Ameriprise Financial \| Corporate debt securities
Investments
Amortized Cost	10,361	8,737
Gross Unrealized Gains	180	1,243
Gross Unrealized Losses	(823)	(48)
Allowance for Credit Loss	(20)	0	(10)	0
Fair Value	9,698	9,932
Ameriprise Financial \| Residential mortgage backed securities
Investments
Amortized Cost	17,056	10,927
Gross Unrealized Gains	37	67
Gross Unrealized Losses	(1,390)	(50)
Allowance for Credit Loss	0	0
Fair Value	15,703	10,944
Ameriprise Financial \| Commercial mortgage backed securities
Investments
Amortized Cost	6,648	4,950
Gross Unrealized Gains	3	59
Gross Unrealized Losses	(439)	(23)
Allowance for Credit Loss	0	0
Fair Value	6,212	4,986
Ameriprise Financial \| Asset backed securities
Investments
Amortized Cost	6,408	3,639
Gross Unrealized Gains	14	26
Gross Unrealized Losses	(158)	(11)
Allowance for Credit Loss	0	0	(1)	0
Fair Value	6,264	3,654
Ameriprise Financial \| State and municipal obligations
Investments
Amortized Cost	773	850
Gross Unrealized Gains	53	244
Gross Unrealized Losses	(27)	(1)
Allowance for Credit Loss	(2)	(1)	$ 0	$ 0
Fair Value	797	1,092
Ameriprise Financial \| U.S. government and agency obligations
Investments
Amortized Cost	2,079	1,301
Gross Unrealized Gains	1	0
Gross Unrealized Losses	(1)	0
Allowance for Credit Loss	0	0
Fair Value	2,079	1,301
Ameriprise Financial \| Foreign government bonds and obligations
Investments
Amortized Cost	43	88
Gross Unrealized Gains	0	5
Gross Unrealized Losses	(2)	(1)
Allowance for Credit Loss	0	0
Fair Value	41	92
Ameriprise Financial \| Other securities
Investments
Amortized Cost	16	49
Gross Unrealized Gains	1	0
Gross Unrealized Losses	0	0
Allowance for Credit Loss	0	0
Fair Value	$ 17	$ 49