Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,236	$ 964	$ 3,678	$ 2,744
Defined benefit plans:
Amortization of unrecognized amounts included in net periodic benefit costs	0	1	1	3
Foreign exchange gains (losses)	1	(1)	0	0
Other comprehensive income	1	0	1	3
Total comprehensive income	1,237	964	3,679	2,747
Total comprehensive income attributable to noncontrolling interests	(710)	(509)	(2,063)	(1,284)
Total comprehensive income (loss)	$ 527	$ 455	$ 1,616	$ 1,463