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Supplemental Cash Flow Information
 9 Months Ended
Sep. 30, 2025
Supplemental Cash Flow Information [Abstract]  
Supplemental Cash Flow Information SUPPLEMENTAL CASH FLOW INFORMATION
 
The following table provides supplemental disclosure of substantive cash flow information (in millions):
Nine Months Ended September 30,
20252024
Cash paid during the period for interest on debt, net of amounts capitalized$575 $671 
Non-cash investing activities:
Unpaid purchases of property, plant and equipment (1)10 20 
Right-of-use assets obtained in exchange for lease liabilities:
Operating lease liabilities (2)2 3 
Finance lease liabilities (3)— 59 
(1)Reflects unpaid portion, as of the end of each period, of assets and liabilities recognized during the respective periods.
(2)Net of $33 million reclassified from operating leases to finance leases during the nine months ended September 30, 2024, as a result of modifications of the underlying tug vessel leases.
(3)Net of $15 million reclassified from finance leases to operating leases during the nine months ended September 30, 2024, as a result of modifications of the underlying tug vessel leases.