Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 2,873	$ 2,622	$ 1,827
Other comprehensive income, before tax:
Pension and other postretirement benefits	62	70	36
Other comprehensive income of equity investees	4	7	4
Other comprehensive income, before tax	66	77	40
Income tax expense related to items of other comprehensive income	(14)	(19)	(9)
Other comprehensive income, net of tax	52	58	31
Total comprehensive income	$ 2,925	$ 2,680	$ 1,858