Investments - Rollforward of Allowance for Credit Losses (Details) - Ameriprise Financial - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	$ 1	$ 11	$ 0
Additions for which credit losses were not previously recorded	20	1	14
Additional increases (decreases) on securities that had an allowance recorded in a previous period	1		(3)
Charge-offs		(11)
Ending Balance	22	1	11
Corporate debt securities
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	0	10	0
Additions for which credit losses were not previously recorded	20	0	13
Additional increases (decreases) on securities that had an allowance recorded in a previous period	0		(3)
Charge-offs		(10)
Ending Balance	20	0	10
Asset backed securities
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	0	1	0
Additions for which credit losses were not previously recorded	0	0	1
Additional increases (decreases) on securities that had an allowance recorded in a previous period	0		0
Charge-offs		(1)
Ending Balance	0	0	1
State and municipal obligations
Rollforward of available-for-Sale securities allowance for credit losses
Beginning Balance	1	0	0
Additions for which credit losses were not previously recorded	0	1	0
Additional increases (decreases) on securities that had an allowance recorded in a previous period	1		0
Charge-offs		0
Ending Balance	$ 2	$ 1	$ 0