Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income	$ 731	$ 1,038	$ 1,780	$ 2,942
Defined benefit plans:
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax	0	0	0	(1)
Amortization of unrecognized amounts included in net periodic benefit costs	1	2	2	4
Foreign exchange (losses) gains	0	(1)	1	(1)
Other comprehensive income	1	1	3	2
Total comprehensive income	732	1,039	1,783	2,944
Total comprehensive income attributable to noncontrolling interests	(388)	(198)	(775)	(575)
Total comprehensive income (loss)	$ 344	$ 841	$ 1,008	$ 2,369