Revenues and Segment Information, Total Assets by Reportable Segments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Total Assets by Reportable Segments
Reportable segment assets	$ 60,143	$ 63,056
Equity Method Investments (Textual):
Investments in nonconsolidated joint ventures	695	713
Corporate and Eliminations [Member]
Total Assets by Reportable Segments
Reportable segment assets	6,189	6,686
Refining [Member]
Equity Method Investments (Textual):
Investments in nonconsolidated joint ventures	695	713
Refining [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	46,729	49,031
Renewable Diesel [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	5,680	5,790
Ethanol [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	$ 1,545	$ 1,549