Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 194	$ 185	$ 476	$ 696
Other comprehensive loss:
Net change in unrealized losses on non-credit impaired available-for-sale securities	(28)	(65)	(19)	(248)
Foreign currency translation adjustments	(4)	(10)	0	(13)
Changes in discount rate for insurance claims and policyholder liabilities	8	18	15	73
Other	4	4	2	24
Income tax effect:
Net change in unrealized losses on non-credit impaired available-for-sale securities	6	15	4	57
Foreign currency translation adjustments	1	2	0	3
Changes in discount rate for insurance claims and policyholder liabilities	(1)	(4)	(3)	(16)
Other	(1)	(1)	(1)	(6)
Other comprehensive loss, net of tax, before reclassification adjustments	(15)	(41)	(2)	(126)
Net realized losses on available-for-sale securities, net of tax	0	0	0	(3)
Reclassification adjustments included in net income, net of tax	0	0	0	(3)
Other comprehensive loss, net of tax	(15)	(41)	(2)	(129)
Comprehensive income	$ 179	$ 144	$ 474	$ 567