Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 3,612	$ 946	$ (1,451)
Other comprehensive income (loss), net of tax
Change in actuarial gain (loss) and other for postretirement and postemployment plans	3	14	(30)
Change in derivative hedges unrecognized gain (loss)	22	23	(2)
Reclassification of de-designated forward interest rate swaps	0	(28)	0
Other	(1)	0	0
Other comprehensive income (loss)	24	9	(32)
Comprehensive income (loss)	$ 3,636	$ 955	$ (1,483)