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Revenues and Segment Information, Components of Operating Income (Loss) (Details) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 USD ($) refinery ethanol_plant | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) segment ethanol_plant refinery | Sep. 30, 2019 USD ($)
Segment Information for our Reportable Segments |  |  |  |  |
Revenues | [1] | $ 15,809 | $ 27,249 | $ 48,308 | $ 80,445
Cost of materials and other |  | 14,801 | 24,335 | 43,832 | 72,396
LCM inventory valuation adjustment |  | (313) | 0 | (19) | 0
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 1,117 | 1,239 | 3,268 | 3,629
Depreciation and amortization expense |  | 602 | 556 | 1,737 | 1,645
Total cost of sales |  | 16,207 | 26,130 | 48,818 | 77,670
Other operating expenses |  | 25 | 10 | 30 | 14
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 186 | 217 | 532 | 625
Depreciation and amortization expense |  | 12 | 11 | 37 | 39
Operating income (loss) |  | $ (621) | 881 | $ (1,109) | 2,097
Disclosure of Entity's Reportable Segments (Textual) |  |  |  |  |
Number of reportable segments | segment |  |  |  | 3 |
Number of petroleum refineries | refinery |  | 15 |  | 15 |
Number of ethanol plants | ethanol_plant |  | 14 |  | 14 |
Corporate, Reconciling Items And Eliminations [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | $ (100) | (108) | $ (316) | (346)
Operating income (loss) |  | (198) | (228) | (571) | (664)
Corporate [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 0 | 1 | 0 | 2
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 186 | 217 | 532 | 625
Depreciation and amortization expense |  | 12 | 11 | 37 | 39
Intersegment Eliminations [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | (100) | (109) | (316) | (348)
Cost of materials and other |  | (100) | (108) | (314) | (346)
LCM inventory valuation adjustment |  | 0 |  | 0 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 0 | 0 | 0 | 0
Depreciation and amortization expense |  | 0 | 0 | 0 | 0
Total cost of sales |  | (100) | (108) | (314) | (346)
Other operating expenses |  | 0 | 0 | 0 | 0
Refining [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 14,727 | 26,145 | 45,327 | 77,109
Refining [Member] | Operating Segments [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 14,729 | 26,147 | 45,333 | 77,121
Cost of materials and other |  | 14,103 | 23,432 | 41,769 | 69,769
LCM inventory valuation adjustment |  | (296) |  | (19) |
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 989 | 1,100 | 2,912 | 3,197
Depreciation and amortization expense |  | 538 | 518 | 1,607 | 1,539
Total cost of sales |  | 15,334 | 25,050 | 46,269 | 74,505
Other operating expenses |  | 24 | 10 | 29 | 13
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) |  | (629) | 1,087 | (965) | 2,603
Refining [Member] | Intersegment Eliminations [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 2 | 2 | 6 | 12
Renewable Diesel [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 305 | 212 | 850 | 686
Renewable Diesel [Member] | Operating Segments [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 345 | 262 | 1,000 | 860
Cost of materials and other |  | 128 | 164 | 393 | 577
LCM inventory valuation adjustment |  | 0 |  | 0 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 23 | 18 | 63 | 54
Depreciation and amortization expense |  | 10 | 15 | 33 | 38
Total cost of sales |  | 161 | 197 | 489 | 669
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) |  | 184 | 65 | 511 | 191
Renewable Diesel [Member] | Intersegment Eliminations [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 40 | 50 | 150 | 174
Ethanol [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 777 | 891 | 2,131 | 2,648
Ethanol [Member] | Operating Segments [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | 835 | 948 | 2,291 | 2,810
Cost of materials and other |  | 670 | 847 | 1,984 | 2,396
LCM inventory valuation adjustment |  | (17) |  | 0 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 105 | 121 | 293 | 378
Depreciation and amortization expense |  | 54 | 23 | 97 | 68
Total cost of sales |  | 812 | 991 | 2,374 | 2,842
Other operating expenses |  | 1 | 0 | 1 | 1
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) |  | 22 | (43) | (84) | (33)
Ethanol [Member] | Intersegment Eliminations [Member] |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |
Revenues |  | $ 58 | $ 57 | $ 160 | $ 162
[1] | Includes excise taxes on sales by certain of our international operations of $1,339 million and $1,399 million for the three months ended September 30, 2020 and 2019, respectively, and $3,491 million and $4,139 million for the nine months ended September 30, 2020 and 2019, respectively.

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