Revenues and Segment Information, Disaggregation of Revenue by Product (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenue by Segment
Revenues	[1]	$ 51,641	$ 27,748	$ 90,183	$ 48,554
Refining [Member]
Revenue by Segment
Revenues		49,495	25,968	86,308	45,437
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		20,604	12,432	36,164	21,161
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		24,427	10,875	41,871	19,456
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		4,464	2,661	8,273	4,820
Renewable Diesel [Member]
Revenue by Segment
Revenues		855	496	1,450	848
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		855	496	1,450	848
Ethanol [Member]
Revenue by Segment
Revenues		1,291	1,284	2,425	2,269
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		979	983	1,854	1,735
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 312	$ 301	$ 571	$ 534

[1] Includes excise taxes on sales by certain of our foreign operations of $1,254 million and $1,422 million for the three months ended June 30, 2022 and 2021, respectively, and $2,677 million and $2,542 million for the six months ended June 30, 2022 and 2021, respectively.