Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 535	$ 443
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in net unrealized gain (loss) on fixed maturities, available for sale ("AFS")	586	(1,892)
Change in unrealized losses on fixed maturities for which an allowance for credit losses has been recorded	(6)	0
Changes in net gain on cash flow hedging instruments	8	(1)
Change in foreign currency translation adjustments	2	0
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense	(8)	43
Change in pension and other postretirement plan adjustments	(5)	(12)
Other comprehensive income (loss), net of tax	587	(1,838)
Comprehensive income (loss)	$ 1,122	$ (1,395)