Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 1,038	$ 1,331	$ 2,942	$ 2,284
Defined benefit plans:
Actuarial losses arising during the period	0	0	0	(1)
Other Comprehensive (Income) Loss, Defined Benefit Plan, Prior Service Cost (Credit), before Tax	0	0	(1)	0
Amortization of unrecognized amounts included in net periodic benefit costs	2	4	4	8
Foreign exchange losses	(1)	0	(1)	(1)
Other comprehensive income	1	4	2	6
Total comprehensive income	1,039	1,335	2,944	2,290
Total comprehensive income attributable to noncontrolling interests	(198)	(248)	(575)	(482)
Total comprehensive income (loss)	$ 841	$ 1,087	$ 2,369	$ 1,808