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Revenues and Segment Information, Disaggregation of Revenue by Product (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2024	Mar. 31, 2023
Revenue by Segment
Revenues	[1]	$ 31,759	$ 36,439
Refining [Member]
Revenue by Segment
Revenues		30,143	34,407
Refining [Member] | Gasoline and Blendstocks [Member]
Revenue by Segment
Revenues		13,126	15,048
Refining [Member] | Distillates [Member]
Revenue by Segment
Revenues		14,128	16,838
Refining [Member] | Other Product Revenues [Member]
Revenue by Segment
Revenues		2,889	2,521
Renewable Diesel [Member]
Revenue by Segment
Revenues		702	935
Renewable Diesel [Member] | Renewable Diesel [Member]
Revenue by Segment
Revenues		679	876
Renewable Diesel [Member] | Renewable Naphtha [Member]
Revenue by Segment
Revenues		23	59
Ethanol [Member]
Revenue by Segment
Revenues		914	1,097
Ethanol [Member] | Ethanol [Member]
Revenue by Segment
Revenues		638	763
Ethanol [Member] | Distillers Grains [Member]
Revenue by Segment
Revenues		$ 276	$ 334
[1] Includes excise taxes on sales by certain of our foreign operations of $1,387 million and $1,422 million for the three months ended March 31, 2024 and 2023, respectively.

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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