Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Net income (loss)	$ 230	$ (1,681)	$ 401	$ (2,696)
Other comprehensive income (loss), net of income taxes	2	9	2	20
Comprehensive income (loss)	232	(1,672)	403	(2,676)
Comprehensive (income) loss attributable to noncontrolling interest	(3)	5	(4)	3
Comprehensive income (loss) attributable to company shareholders	$ 229	$ (1,667)	$ 399	$ (2,673)