v3.25.2
Financial Instruments and Derivatives (Income Statement) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Realized and Unrealized Before-Tax Gain / (Loss) on Derivative Instruments Recognized in the Consolidated Statement of Income        
Revenues $ 81,506 $ 93,060 $ 164,636 $ 176,143
Crude oil and product purchases (45,327) (54,199) (92,115) (101,800)
Not Designated as Hedging Instrument        
Realized and Unrealized Before-Tax Gain / (Loss) on Derivative Instruments Recognized in the Consolidated Statement of Income        
Revenues 515 (103) 534 (895)
Crude oil and product purchases 4 (5) 6 (2)
Total $ 519 $ (108) $ 540 $ (897)