Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 856	$ 630
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in net unrealized gain (loss) on fixed maturities, available-for-sale ("AFS")	(370)	302
Changes in net gain on cash flow hedging instruments	(3)	0
Change in foreign currency translation adjustments	1	0
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense	4	(3)
Change in pension and other postretirement plan adjustments	9	7
OCI, net of tax	(359)	306
Comprehensive income	$ 497	$ 936