Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Statement of Comprehensive Income [Abstract]
Net income	$ 1,247	$ 1,236	$ 3,587	$ 3,678
Defined benefit plans:
Amortization of unrecognized amounts included in net periodic benefit costs	1	0	4	1
Foreign exchange gains	0	1	0	0
Other comprehensive income	1	1	4	1
Total comprehensive income	1,248	1,237	3,591	3,679
Total comprehensive income attributable to noncontrolling interests	(573)	(710)	(1,789)	(2,063)
Total comprehensive income (loss)	$ 675	$ 527	$ 1,802	$ 1,616