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Revenue (Disaggregated by Product Line) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Sales and other operating revenues	[1]	$ 33,799	$ 37,914	$ 65,316	$ 70,620
Refining & Marketing
Sales and other operating revenues	[1]	31,828	36,163	61,285	67,137
Refining & Marketing | Refined products
Sales and other operating revenues		29,945	33,605	57,372	62,342
Refining & Marketing | Crude oil
Sales and other operating revenues		1,419	2,099	2,984	3,887
Refining & Marketing | Services and other
Sales and other operating revenues		464	459	929	908
Midstream
Sales and other operating revenues	[1]	1,340	1,260	2,781	2,481
Midstream | Refined products
Sales and other operating revenues		472	393	1,002	766
Midstream | Services and other
Sales and other operating revenues		868	867	1,779	1,715
Renewable Diesel
Sales and other operating revenues		631	491	1,250	1,002
Renewable Diesel | Refined products
Sales and other operating revenues		629	489	1,244	999
Renewable Diesel | Services and other
Sales and other operating revenues		$ 2	$ 2	$ 6	$ 3
[1] Includes sales to related parties. See Note 6 for additional information. See Note 17 for the disaggregation of our revenue from external customers by segment and product line.

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Amount, excluding 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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