Revenues and Segment Information, Components of Operating Income (Loss) (Details) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)
Segment Information for our Reportable Segments
Revenues	[1]	$ 51,641	$ 27,748	$ 90,183	$ 48,554
Cost of sales:
Cost of materials and other	[2]	42,946	25,249	77,895	44,241
Operating expenses (excluding depreciation and amortization expense reflected below)		1,626	1,214	3,005	2,870
Depreciation and amortization expense		590	576	1,185	1,142
Total cost of sales		45,162	27,039	82,085	48,253
Other operating expenses		15	12	34	50
General and administrative expenses (excluding depreciation and amortization expense reflected below)		233	176	438	384
Depreciation and amortization expense		12	12	23	24
Operating income (loss)		6,219	509	$ 7,603	(157)
Segment Information (Textual)
Number of reportable segments | segment				3
Corporate, Reconciling Items And Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		(808)	(161)	$ (1,325)	(303)
Cost of sales:
Operating income (loss)		(246)	(187)	(463)	(408)
Corporate [Member]
Segment Information for our Reportable Segments
Revenues		0	0	0	0
Cost of sales:
General and administrative expenses (excluding depreciation and amortization expense reflected below)		233	176	438	384
Depreciation and amortization expense		12	12	23	24
Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		(808)	(161)	(1,325)	(303)
Cost of sales:
Cost of materials and other	[2]	(806)	(162)	(1,322)	(303)
Operating expenses (excluding depreciation and amortization expense reflected below)		(1)	0	(1)	0
Depreciation and amortization expense		0	0	0	0
Total cost of sales		(807)	(162)	(1,323)	(303)
Other operating expenses		0	0	0	0
Refining [Member]
Segment Information for our Reportable Segments
Revenues		49,495	25,968	86,308	45,437
Refining [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		49,506	25,969	86,323	45,441
Cost of sales:
Cost of materials and other	[2]	41,313	24,000	74,919	42,022
Operating expenses (excluding depreciation and amortization expense reflected below)		1,402	1,064	2,595	2,535
Depreciation and amortization expense		565	544	1,114	1,077
Total cost of sales		43,280	25,608	78,628	45,634
Other operating expenses		14	12	32	50
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0	0
Depreciation and amortization expense		0	0	0	0
Operating income (loss)		6,212	349	7,663	(243)
Refining [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		11	1	15	4
Renewable Diesel [Member]
Segment Information for our Reportable Segments
Revenues		855	496	1,450	848
Renewable Diesel [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		1,451	572	2,432	1,003
Cost of sales:
Cost of materials and other	[2]	1,213	281	1,968	468
Operating expenses (excluding depreciation and amortization expense reflected below)		58	31	109	60
Depreciation and amortization expense		28	12	54	24
Total cost of sales		1,299	324	2,131	552
Other operating expenses		0	0	0	0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0	0
Depreciation and amortization expense		0	0	0	0
Operating income (loss)		152	248	301	451
Segment Information (Textual)
Blender's tax credit		198	84	354	163
Renewable Diesel [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		596	76	982	155
Ethanol [Member]
Segment Information for our Reportable Segments
Revenues		1,291	1,284	2,425	2,269
Ethanol [Member] | Operating Segments [Member]
Segment Information for our Reportable Segments
Revenues		1,492	1,368	2,753	2,413
Cost of sales:
Cost of materials and other	[2]	1,226	1,130	2,330	2,054
Operating expenses (excluding depreciation and amortization expense reflected below)		167	119	302	275
Depreciation and amortization expense		(3)	20	17	41
Total cost of sales		1,390	1,269	2,649	2,370
Other operating expenses		1	0	2	0
General and administrative expenses (excluding depreciation and amortization expense reflected below)		0	0	0	0
Depreciation and amortization expense		0	0	0	0
Operating income (loss)		101	99	102	43
Ethanol [Member] | Intersegment Eliminations [Member]
Segment Information for our Reportable Segments
Revenues		$ 201	$ 84	$ 328	$ 144

[1] Includes excise taxes on sales by certain of our foreign operations of $1,254 million and $1,422 million for the three months ended June 30, 2022 and 2021, respectively, and $2,677 million and $2,542 million for the six months ended June 30, 2022 and 2021, respectively.

[2] Cost of materials and other for our Renewable Diesel segment is net of the blender’s tax credit on qualified fuel mixtures of $198 million and $84 million for the three months ended June 30, 2022 and 2021, respectively, and $354 million and $163 million for the six months ended June 30, 2022 and 2021, respectively.