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Information Relating to the Consolidated Statement of Cash Flows - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting Information [Line Items]      
Non cash transaction in operating segments $ (500) $ (2,180) $ (950)
Severance charges (715)    
Operating Segments | Upstream      
Segment Reporting Information [Line Items]      
Non cash transaction in operating segments (400)    
Operating Segments | Downstream      
Segment Reporting Information [Line Items]      
Severance charges $ (715)