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	(122)	(61)
Credit loss benefit (expense)	(28)	(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	(55)	12
Indexed product derivative results	(69)	145
Derivative results	287	(548)
Other realized gain (loss)	(1)	1
Total realized gain (loss)	11	(434)
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