v3.26.1
Operating Segments and Geographic Data - Schedule of Segment Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Segment Reporting [Line Items]    
Total Assets $ 330,135 $ 324,012
Goodwill 4,568 4,568
U.S.    
Segment Reporting [Line Items]    
Total Assets 132,602 128,700
International    
Segment Reporting [Line Items]    
Total Assets 192,965 190,744
Operating Segments    
Segment Reporting [Line Items]    
Total Assets 315,588 312,218
Operating Segments | Upstream    
Segment Reporting [Line Items]    
Total Assets 255,157 256,975
Goodwill 4,216 4,216
Operating Segments | Upstream | U.S.    
Segment Reporting [Line Items]    
Total Assets 84,072 84,559
Operating Segments | Upstream | International    
Segment Reporting [Line Items]    
Total Assets 166,869 168,200
Operating Segments | Downstream    
Segment Reporting [Line Items]    
Total Assets 60,431 55,243
Goodwill 352 352
Operating Segments | Downstream | U.S.    
Segment Reporting [Line Items]    
Total Assets 36,028 33,745
Operating Segments | Downstream | International    
Segment Reporting [Line Items]    
Total Assets 24,051 21,146
Segment Reporting, Reconciling Item    
Segment Reporting [Line Items]    
Total Assets 14,547 11,794
Segment Reporting, Reconciling Item | U.S.    
Segment Reporting [Line Items]    
Total Assets 12,502 10,396
Segment Reporting, Reconciling Item | International    
Segment Reporting [Line Items]    
Total Assets $ 2,045 $ 1,398