v3.26.1
Operating Segments and Geographic Data - Schedule of Segment Assets (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Segment Reporting Information [Line Items]    
Total Assets $ 329,551 $ 324,012
Goodwill 4,568 4,568
U.S.    
Segment Reporting Information [Line Items]    
Total Assets 128,284 128,700
International    
Segment Reporting Information [Line Items]    
Total Assets 196,699 190,744
Operating Segments    
Segment Reporting Information [Line Items]    
Total Assets 318,516 312,218
Operating Segments | Upstream    
Segment Reporting Information [Line Items]    
Total Assets 256,999 256,975
Goodwill 4,216 4,216
Operating Segments | Upstream | U.S.    
Segment Reporting Information [Line Items]    
Total Assets 84,549 84,559
Operating Segments | Upstream | International    
Segment Reporting Information [Line Items]    
Total Assets 168,234 168,200
Operating Segments | Downstream    
Segment Reporting Information [Line Items]    
Total Assets 61,517 55,243
Goodwill 352 352
Operating Segments | Downstream | U.S.    
Segment Reporting Information [Line Items]    
Total Assets 34,890 33,745
Operating Segments | Downstream | International    
Segment Reporting Information [Line Items]    
Total Assets 26,275 21,146
Segment Reporting, Reconciling Item    
Segment Reporting Information [Line Items]    
Total Assets 11,035 11,794
Segment Reporting, Reconciling Item | U.S.    
Segment Reporting Information [Line Items]    
Total Assets 8,845 10,396
Segment Reporting, Reconciling Item | International    
Segment Reporting Information [Line Items]    
Total Assets $ 2,190 $ 1,398