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Supplementary Cash Flow Information (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Additional Cash Flow Elements, Operating Activity [Abstract]    
Interest paid $ (110) $ (145)
Net income taxes (paid) refunded (a) (4) (12)
Additional Cash Flow Elements, Investing Activity [Abstract]    
Additions to property, plant and equipment – E&P (966) (902)
Additions to property, plant and equipment – Midstream (46) (55)
Exploration and Production    
Additional Cash Flow Elements, Investing Activity [Abstract]    
Capital expenditures incurred (1,037) (888)
Increase (decrease) in related liabilities 71 (14)
Midstream    
Additional Cash Flow Elements, Investing Activity [Abstract]    
Capital expenditures incurred (50) (35)
Increase (decrease) in related liabilities $ 4 $ (20)