v3.25.4
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]  
Schedule of Change in Asset Retirement Obligation The following table presents the change in the liability for asset retirement obligations, substantially all of which is reflected in “Other long-term liabilities and deferred credits” on our Consolidated Balance Sheets as of December 31, 2025, 2024 and 2023 (in millions):
December 31,
202520242023
Beginning balance$109 $106 $103 
Liabilities incurred— — 1 
Liabilities settled
(1)(2)(1)
Accretion expense4 4 4 
Revisions in estimated cash flows— 1 (1)
Ending balance$112 $109 $106