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Revenues and Segment Information, Revenue by Product (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Revenue by Segment
Revenues	[1]	$ 44,476	$ 29,889	$ 76,857	$ 60,147
Refining [Member]
Revenue by Segment
Revenues		42,300	28,324	73,105	57,081
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		17,417	12,721	29,848	25,095
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		20,688	12,778	36,149	26,154
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		4,195	2,825	7,108	5,832
Renewable Diesel [Member]
Revenue by Segment
Revenues		1,176	565	1,887	1,058
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		1,057	470	1,623	861
Renewable Diesel [Member] | Renewable Naphtha [Member]
Revenue by Segment
Revenues		39	46	76	85
Renewable Diesel [Member] | Neat SAF [Member]
Revenue by Segment
Revenues		80	49	188	112
Ethanol [Member]
Revenue by Segment
Revenues		1,000	1,000	1,865	2,008
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		789	780	1,465	1,567
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 211	$ 220	$ 400	$ 441
[1] Includes excise taxes on sales by certain of our foreign operations of $1,660 million and $1,662 million for the three months ended June 30, 2026 and 2025, respectively, and $3,385 million and $3,166 million for the six months ended June 30, 2026 and 2025, respectively.

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