Revenues and Segment Information, Total Assets by Reportable Segments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Total Assets by Reportable Segments
Reportable segment assets	$ 57,888	$ 51,774
Equity Method Investments (Textual):
Investments in nonconsolidated joint ventures	734	972
Corporate and Eliminations [Member]
Total Assets by Reportable Segments
Reportable segment assets	5,274	5,448
Refining [Member]
Equity Method Investments (Textual):
Investments in nonconsolidated joint ventures	734	972
Refining [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	47,365	42,939
Renewable Diesel [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	1,812	1,728
Ethanol [Member] | Operating Segments [Member]
Total Assets by Reportable Segments
Reportable segment assets	$ 3,437	$ 1,659