XML 117 R67.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Commitments and Contingencies - Renewable Fuel Standard (Details) - Petroleum Segment - Environmental, Health, and Safety Matters - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Loss Contingencies [Line Items]      
Expense (benefit) for compliance with RFS $ (51) $ (11)  
RFS obligation $ 294   $ 329