Realized Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Fixed maturity AFS securities:
Gross gains		$ 630	$ 38	$ 663
Gross losses		(408)	(53)	(37)
Credit loss benefit (expense)		(22)	(15)	(11)
Intent to sell impairments		(1,091)	0	0
Realized gain (loss) on equity securities		(6)	15	44
Credit loss benefit (expense) on mortgage loans on real estate		(16)	(3)	112
Credit loss benefit (expense) on reinsurance-related assets		(41)	(112)	6
Realized gain (loss) on the market-to-market on certain instruments		(1,298)	37	63
Indexed product derivative results		(232)	74	22
Derivative results		(1,830)	901	(1,717)
Other realized gain (loss)		3	(42)	(12)
Total realized gain (loss)		(4,311)	840	(867)
Fortitude Re
Fixed maturity AFS securities:
Gross gains	$ 335
Loss on embedded derivative		789
Loss on derivative		87
Mortgage loans on real estate
Fixed maturity AFS securities:
Realized gain (loss) on the market-to-market on certain instruments		(11)	(24)	3
Equity securities
Fixed maturity AFS securities:
Realized gain (loss) on equity securities		$ 3	$ 10	$ 47