Condensed Consolidated Statements of Comprehensive Income Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 107	$ 336	$ 727	$ 897
Other Comprehensive Income (Loss), Net of Tax
Net unrealized gains on investments	41	(159)	1,007	(757)
Foreign currency translation adjustment	(29)	0	(12)	(40)
Pension and postretirement benefits	7	7	22	24
Other comprehensive income (loss), net of tax	19	(152)	1,017	(773)
Total comprehensive income	126	184	1,744	124
Net unrealized gains on investments with other-than-temporary impairments
Other Comprehensive Income (Loss), Net of Tax
Net unrealized gains on investments	0	(1)	4	(11)
Net unrealized gains on other investments
Other Comprehensive Income (Loss), Net of Tax
Net unrealized gains on investments	$ 41	$ (158)	$ 1,003	$ (746)