Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,080	$ 767	$ 2,705	$ 2,258
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Change in net unrealized gain (loss) on fixed maturities, available-for-sale ("AFS")	373	1,061	883	811
Change in unrealized losses on fixed maturities for which an allowance for credit losses has been recorded	2	2	3	3
Changes in net gain on cash flow hedging instruments	9	3	(25)	12
Change in foreign currency translation adjustments	(2)	6	14	4
Liability for Future Policy Benefits and Unpaid Claims and Claims Adjustment Expense	(7)	(16)	(11)	(6)
Change in pension and other postretirement plan adjustments	6	7	19	20
OCI, net of tax	381	1,063	883	844
Comprehensive income	$ 1,461	$ 1,830	$ 3,588	$ 3,102