v3.25.4
Financial and Derivative Instruments - Effect of Derivatives Not Designated On Hedging Instruments (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative instruments not designated as hedging instruments, gain (loss), net $ (65) $ (23) $ (505)
Commodity | Sales and other operating revenues      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative instruments not designated as hedging instruments, gain (loss), net (102) (57) (304)
Commodity | Purchased crude oil and products      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative instruments not designated as hedging instruments, gain (loss), net 44 28 (154)
Commodity | Other income (loss)      
Derivative Instruments, Gain (Loss) [Line Items]      
Derivative instruments not designated as hedging instruments, gain (loss), net $ (7) $ 6 $ (47)