Revenues and Segment Information, Activity (Details) $ in Millions		12 Months Ended
		Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Information for our Reportable Segments
Revenues	[1]	$ 113,977	$ 64,912	$ 108,324
Cost of sales:
Cost of materials and other	[2]	102,714	58,933	96,476
LCM inventory valuation adjustment		0	(19)	0
Operating expenses (excluding depreciation and amortization expense reflected below)		5,776	4,435	4,868
Depreciation and amortization expense		2,358	2,303	2,202
Total cost of sales		110,848	65,652	103,546
Other operating expenses		87	35	21
General and administrative expenses (excluding depreciation and amortization expense reflected below)		865	756	868
Depreciation and amortization expense		47	48	53
Operating income (loss)		2,130	(1,579)	3,836
Total expenditures for long-lived assets	[3]	$ 2,458	2,436	2,846
Segment Information (Textual)
Number of reportable segments | segment		3
Corporate, Reconciling Items, and Eliminations[Member]
Segment Information for our Reportable Segments
Revenues		$ (915)	(446)	(494)
Cost of sales:
Operating income (loss)		(914)	(806)	(921)
Corporate [Member]
Segment Information for our Reportable Segments
Revenues		0	0	2
Cost of sales:
General and administrative expenses (excluding depreciation and amortization expense reflected below)		865	756	868
Depreciation and amortization expense		47	48	53
Total expenditures for long-lived assets	[3]	17	27	58
Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		(915)	(446)	(496)
Cost of sales:
Cost of materials and other	[2]	(911)	(444)	(494)
LCM inventory valuation adjustment			0
Operating expenses (excluding depreciation and amortization expense reflected below)		(2)	0	0
Depreciation and amortization expense		0	0	0
Total cost of sales		(913)	(444)	(494)
Other operating expenses		0	0	0
Refining [Member]
Segment Information for our Reportable Segments
Revenues		106,947	60,840	103,746
Refining [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		106,961	60,848	103,764
Cost of sales:
Cost of materials and other	[2]	97,759	56,093	93,371
LCM inventory valuation adjustment			(19)
Operating expenses (excluding depreciation and amortization expense reflected below)		5,088	3,944	4,289
Depreciation and amortization expense		2,169	2,138	2,062
Total cost of sales		105,016	62,156	99,722
Other operating expenses		83	34	20
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0
Depreciation and amortization expense		0	0	0
Operating income (loss)		1,862	(1,342)	4,022
Total expenditures for long-lived assets	[3]	1,374	1,838	2,581
Refining [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		14	8	18
Renewable Diesel [Member]
Segment Information for our Reportable Segments
Revenues		1,874	1,055	970
Renewable Diesel [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		2,342	1,267	1,217
Cost of sales:
Cost of materials and other	[2]	1,438	500	360
LCM inventory valuation adjustment			0
Operating expenses (excluding depreciation and amortization expense reflected below)		134	85	75
Depreciation and amortization expense		58	44	50
Total cost of sales		1,630	629	485
Other operating expenses		3	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 (loss)		709	638	732
Total expenditures for long-lived assets	[3]	1,049	548	160
Segment Information (Textual)
Blender's tax credit		371	288	431
Blender's tax credit, volumes blended in prior year				156
Renewable Diesel [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		468	212	247
Ethanol [Member]
Segment Information for our Reportable Segments
Revenues		5,156	3,017	3,606
Ethanol [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		5,589	3,243	3,837
Cost of sales:
Cost of materials and other	[2]	4,428	2,784	3,239
LCM inventory valuation adjustment			0
Operating expenses (excluding depreciation and amortization expense reflected below)		556	406	504
Depreciation and amortization expense		131	121	90
Total cost of sales		5,115	3,311	3,833
Other operating expenses		1	1	1
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0
Depreciation and amortization expense		0	0	0
Operating income (loss)		473	(69)	3
Total expenditures for long-lived assets	[3]	18	23	47
Ethanol [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		$ 433	$ 226	$ 231

[1] Includes excise taxes on sales by certain of our foreign operations of $5,645 million, $4,797 million, and $5,595 million for the years ended December 31, 2021, 2020, and 2019.

[2] Cost of materials and other for our Renewable Diesel segment is net of blender’s tax credit on qualified fuel mixtures of $371 million, $288 million, and $431 million for the years ended December 31, 2021, 2020, and 2019, respectively. Of the amount recognized in 2019, $156 million related to volumes blended during 2018, given that the legislation that retroactively reinstated the credit was passed and signed into law in December 2019.

[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.