Revenues and Segment Information, Revenue by Product (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Revenue by Segment
Revenues	[1]	$ 122,687	$ 129,881	$ 144,766
Refining [Member]
Revenue by Segment
Revenues		116,158	123,853	136,470
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		50,917	56,014	61,538
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		55,077	55,636	63,664
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		10,164	12,203	11,268
Renewable Diesel [Member]
Revenue by Segment
Revenues		2,508	2,410	3,823
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		2,073	2,316	3,665
Renewable Diesel [Member] | Renewable Naphtha [Member]
Revenue by Segment
Revenues		138	94	158
Renewable Diesel [Member] | Neat SAF [Member]
Revenue by Segment
Revenues		297	0	0
Ethanol [Member]
Revenue by Segment
Revenues		4,021	3,618	4,473
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		3,174	2,647	3,300
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 847	$ 971	$ 1,173

[1] Includes excise taxes on sales by certain of our foreign operations of $6,748 million, $5,907 million, and $5,765 million for the years ended December 31, 2025, 2024, and 2023.