Realized Gain (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Fixed maturity AFS securities:
Gross gains	$ 4	$ 7
Gross losses	(8)	(57)
Credit loss benefit (expense)	(27)	(2)
Realized gain (loss) on equity securities	(5)	11
Credit loss benefit (expense) on mortgage loans on real estate	(1)	0
Credit loss benefit (expense) on reinsurance-related assets	1	1
Realized gain (loss) on the market-to-market on certain instruments	(140)	(133)
Indexed product derivative results	(68)	145
GLB rider fees ceded to LNBAR and attributed fees	(33)	(30)
Other realized gain (loss)	29	1
Total realized gain (loss)	(248)	(57)
Mortgages
Fixed maturity AFS securities:
Realized gain (loss) on the market-to-market on certain instruments	(1)	1
Equity securities
Fixed maturity AFS securities:
Realized gain (loss) on equity securities	$ (5)	$ 11