Revenues and Segment Information, Revenue by Product (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue by Segment
Revenues	[1]	$ 129,881	$ 144,766	$ 176,383
Refining [Member]
Revenue by Segment
Revenues		123,853	136,470	168,154
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		56,014	61,538	70,496
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		55,636	63,664	82,521
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		12,203	11,268	15,137
Renewable Diesel [Member]
Revenue by Segment
Revenues		2,410	3,823	3,483
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		2,316	3,665	3,333
Renewable Diesel [Member] | Renewable Naphtha [Member]
Revenue by Segment
Revenues		94	158	150
Ethanol [Member]
Revenue by Segment
Revenues		3,618	4,473	4,746
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		2,647	3,300	3,653
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 971	$ 1,173	$ 1,093

[1] Includes excise taxes on sales by certain of our foreign operations of $5,907 million, $5,765 million, and $5,194 million for the years ended December 31, 2024, 2023, and 2022.