Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2025

Accounting Policies [Abstract]

Summary of Principal Service Lives

The principal service lives used in computing provisions for depreciation are as follows:

	Years
Pipeline equipment	30	to	50
Hotel properties and other	3	to	40

Schedule of Cash Flow, Supplemental Disclosures

Cash payments for federal, state and local, and foreign income taxes are as follows:

Year Ended December 31	2025		2024		2023
(In millions)
Federal	$	298	$	287	$	263
State and local	35		33		37
Foreign
Canada	18		57		(5)
Other	30		26		9
Total	$	381	$	403	$	304