v3.26.1
Financial and Derivative Instruments - Narrative (Details)
bbl in Millions, $ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
bbl
Jun. 30, 2025
USD ($)
Dec. 31, 2025
bbl
Derivative Instruments, Gain (Loss) [Line Items]          
Loss reclassified from designated hedges $ 153 $ 23 $ 143 $ 40  
Before-tax deferred gains in accumulated other comprehensive gains (129)   (129)    
Obligation to return cash not offset $ 139   $ 139    
Crude Oil | Commodity          
Derivative Instruments, Gain (Loss) [Line Items]          
Notional amount, volume | bbl     31   29
Cash Flow Hedging | Income Statement Location [Axis]: us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax          
Derivative Instruments, Gain (Loss) [Line Items]          
Loss reclassified from designated hedges     $ 143 $ 40