Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income (loss)	$ (19)	$ 296	$ (2,715)	$ 525
Other comprehensive income (loss), net of income taxes	2	0	22	2
Comprehensive income (loss)	(17)	296	(2,693)	527
Comprehensive (income) loss attributable to noncontrolling interest	1	(1)	4	(3)
Comprehensive income (loss) attributable to company shareholders	$ (16)	$ 295	$ (2,689)	$ 524