Revenues and Segment Information, Revenue by Product (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenue by Segment
Revenues	[1]	$ 113,977	$ 64,912	$ 108,324
Corporate [Member]
Revenue by Segment
Revenues		0	0	2
Corporate [Member] | Other Revenues [Member]
Revenue by Segment
Revenues		0	0	2
Refining [Member]
Revenue by Segment
Revenues		106,947	60,840	103,746
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		49,534	26,278	42,798
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		45,939	28,234	51,942
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		11,474	6,328	9,006
Renewable Diesel [Member]
Revenue by Segment
Revenues		1,874	1,055	970
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		1,874	1,055	970
Ethanol [Member]
Revenue by Segment
Revenues		5,156	3,017	3,606
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		4,122	2,353	2,889
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 1,034	$ 664	$ 717

[1] Includes excise taxes on sales by certain of our foreign operations of $5,645 million, $4,797 million, and $5,595 million for the years ended December 31, 2021, 2020, and 2019.