Revenues and Segment Information, Activity (Details) $ in Millions		12 Months Ended
		Dec. 31, 2024 USD ($) segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Segment Information for our Reportable Segments
Revenues	[1]	$ 129,881	$ 144,766	$ 176,383
Cost of sales:
Cost of materials and other	[2]	116,516	123,087	150,770
Operating expenses (excluding depreciation and amortization expense reflected below)		5,831	6,089	6,389
Depreciation and amortization expense		2,729	2,658	2,428
Total cost of sales		125,076	131,834	159,587
Asset impairment loss		0	0	61
Other operating expenses		44	33	66
General and administrative expenses (excluding depreciation and amortization expense reflected below)		961	998	934
Depreciation and amortization expense		45	43	45
Operating income		3,755	11,858	15,690
Other income, net		499	502	179
Interest and debt expense, net of capitalized interest		(556)	(592)	(562)
Income before income tax expense		3,698	11,768	15,307
Total expenditures for long-lived assets	[3]	$ 2,057	1,916	2,737
Segment Information (Textual)
Number of reportable segments | segment		3
Corporate, Reconciling Items, and Eliminations[Member]
Segment Information for our Reportable Segments
Revenues		$ (3,534)	(4,272)	(2,814)
Cost of sales:
Operating income		(1,011)	(1,058)	(997)
Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		(3,534)	(4,272)	(2,814)
Cost of sales:
Cost of materials and other	[2]	(3,524)	(4,259)	(2,796)
Operating expenses (excluding depreciation and amortization expense reflected below)		(1)	8	0
Depreciation and amortization expense		(4)	(4)	0
Total cost of sales		(3,529)	(4,255)	(2,796)
Other operating expenses		0	0	0
Corporate [Member]
Segment Information for our Reportable Segments
Revenues		0	0	0
Cost of sales:
Asset impairment loss				0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		961	998	934
Depreciation and amortization expense		45	43	45
Total expenditures for long-lived assets	[3]	67	91	73
Refining [Member]
Segment Information for our Reportable Segments
Revenues		123,853	136,470	168,154
Refining [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		123,863	136,488	168,210
Cost of sales:
Cost of materials and other	[2]	112,538	117,401	144,588
Operating expenses (excluding depreciation and amortization expense reflected below)		4,946	5,208	5,509
Depreciation and amortization expense		2,391	2,351	2,247
Total cost of sales		119,875	124,960	152,344
Asset impairment loss				0
Other operating expenses		17	17	63
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0
Depreciation and amortization expense		0	0	0
Operating income		3,971	11,511	15,803
Total expenditures for long-lived assets	[3]	1,635	1,488	1,763
Refining [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		10	18	56
Renewable Diesel [Member]
Segment Information for our Reportable Segments
Revenues		2,410	3,823	3,483
Renewable Diesel [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		5,066	6,991	5,501
Cost of sales:
Cost of materials and other	[2]	3,944	5,550	4,350
Operating expenses (excluding depreciation and amortization expense reflected below)		350	358	255
Depreciation and amortization expense		265	231	122
Total cost of sales		4,559	6,139	4,727
Asset impairment loss				0
Other operating expenses		0	0	0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0
Depreciation and amortization expense		0	0	0
Operating income		507	852	774
Total expenditures for long-lived assets	[3]	321	294	879
Segment Information (Textual)
Blender's tax credit		1,300	1,200	761
Renewable Diesel [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		2,656	3,168	2,018
Ethanol [Member]
Segment Information for our Reportable Segments
Revenues		3,618	4,473	4,746
Ethanol [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		4,486	5,559	5,486
Cost of sales:
Cost of materials and other	[2]	3,558	4,395	4,628
Operating expenses (excluding depreciation and amortization expense reflected below)		536	515	625
Depreciation and amortization expense		77	80	59
Total cost of sales		4,171	4,990	5,312
Asset impairment loss				61
Other operating expenses		27	16	3
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0
Depreciation and amortization expense		0	0	0
Operating income		288	553	110
Total expenditures for long-lived assets	[3]	34	43	22
Ethanol [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		$ 868	$ 1,086	$ 740

[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.

[2] Cost of materials and other for our Renewable Diesel segment is net of the blender’s tax credit on qualified fuel mixtures of $1.3 billion, $1.2 billion, and $761 million for the years ended December 31, 2024, 2023, and 2022, respectively.

[3] Total expenditures for long-lived assets includes amounts related to capital expenditures; deferred turnaround and catalyst costs; and property, plant, and equipment for acquisitions.