Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Comprehensive Income [Abstract]
Net Income	$ 1,997	$ 287	$ 1,045
Other Comprehensive Income (Loss)
Change in unrealized gains and losses on investments, net of tax (benefit) of $114, $(72) and $317, respectively	430	(267)	598
Amortization of pension actuarial gains and losses and prior service cost, net of tax (benefit) of $2, $(1) and $7, respectively	5	(3)	7
Change in life deferred acquisition costs, life policy reserves and other, net of tax (benefit) of $(3), $2 and $1, respectively	(9)	7	(2)
Other comprehensive income (loss)	426	(263)	603
Comprehensive Income	$ 2,423	$ 24	$ 1,648