Other income and expense (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity in net income of partially-owned entities	$ 967	$ 867	$ 1
Gains (losses) from fair value changes in separate account assets	(8)	(45)	(42)
Federal excise and capital taxes	(21)	(24)	(21)
Other	(34)	(23)	(27)
Total	1,023	836	(89)
Unrealized Gain (Loss) on Investments	(361)	3,120	(9,535)
Asset management and performance fee revenue	265	136	0
Asset management and performance fee expense	(146)	(75)	0
Partially-owned Investment Companies
Unrealized Gain (Loss) on Investments	537	434	$ (219)
Huatai Group [Member]
Equity in net income of partially-owned entities	$ 36	$ (11)