Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 287	$ 1,045	$ 591
Other Comprehensive Income (Loss)
Change in unrealized gains and losses on investments, net of tax (benefit) of $(72), $317 and $186, respectively	(267)	598	345
Amortization of pension actuarial gains and losses and prior service cost, net of tax (benefit) of $(1), $7 and $6, respectively	(3)	7	10
Change in life deferred acquisition costs, life policy reserves and other, net of tax (benefit) of $2, $1 and $(4), respectively	7	(2)	(6)
Other comprehensive income (loss)	(263)	603	349
Comprehensive Income	$ 24	$ 1,648	$ 940