Investments - Summary of Net Investment Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022		Dec. 31, 2021
Summary of Net investment income
Net investment income	$ 3,206	$ 1,474	[1]	$ 1,683	[1]
Ameriprise Financial
Summary of Net investment income
Investment income on fixed maturities	2,637	1,320		933
Net realized gains (losses)	(27)	(87)		636
Other	415	139		(1)
Consolidated investment entities
Summary of Net investment income
Net investment income	$ 181	$ 102		$ 115

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