Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 1,843	$ (487)	$ 2,968
Other Comprehensive Income (Loss)
Change in unrealized gains and losses on investments, net of tax (benefit) of $59, $(347) and $(50), respectively	218	(1,292)	(184)
Amortization of pension actuarial gains and losses and prior service cost, net of tax (benefit) of $(1), $2 and $14, respectively	(5)	7	54
Change in life policy reserves, reinsurance recoverable and other, net of tax (benefit) of $(8), $99 and $24, respectively	(34)	374	92
Other comprehensive income (loss)	179	(911)	(38)
Comprehensive Income (Loss)	$ 2,022	$ (1,398)	$ 2,930