Condensed Consolidated Statements of Comprehensive (Loss) Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Net (loss) income	$ (61)	$ 342
Other Comprehensive (Loss) Income, net of tax
Net unrealized gains and losses on investments	(1,055)	530
Foreign currency translation adjustment	(77)	17
Pension and postretirement benefits	11	7
Other comprehensive (loss) income, net of tax	(1,121)	554
Total comprehensive (loss) income	(1,182)	896
Net unrealized gains and losses on investments with an allowance for credit losses
Other Comprehensive (Loss) Income, net of tax
Net unrealized gains and losses on investments	(11)	0
Net unrealized gains and losses on other investments
Other Comprehensive (Loss) Income, net of tax
Net unrealized gains and losses on investments	$ (1,044)	$ 530