Quarterly report pursuant to Section 13 or 15(d)

Supplemental Cash Flow Information

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Supplemental Cash Flow Information
 3 Months Ended
Mar. 31, 2024
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): 
Three Months Ended March 31,
2024 2023
Cash paid during the period for interest on debt, net of amounts capitalized $ 364  $ 367 
Cash paid (refunded) for income taxes, net 1  (2)
Non-cash investing activity:
Unpaid purchases of property, plant and equipment 109  87 
Non-cash financing activity:
Unpaid repurchases of treasury stock inclusive of excise taxes 14  3 

See Note 10—Leases for supplemental cash flow information related to our leases.