Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income (loss)	$ 1,595	$ 1,468	$ (2,942)
Other comprehensive income (loss), net of income taxes:
Defined benefit and other postretirement plans adjustments	(54)	179	(24)
Other	7	0	24
Other comprehensive income (loss), net of income taxes	(47)	179	0
Comprehensive income (loss)	1,548	1,647	(2,942)
Comprehensive income attributable to noncontrolling interest	(23)	(11)	(3)
Comprehensive income (loss) attributable to company shareholders	$ 1,525	$ 1,636	$ (2,945)