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Revenues and Segment Information, Components of Operating Income (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2018 USD ($) refinery ethanol_plant segment | Mar. 31, 2017 USD ($)
Segment Information for our Reportable Segments |  |  |
Revenues | [1] | $ 26,439 | $ 21,772
Cost of materials and other |  | 23,756 | 19,428
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 1,136 | 1,124
Depreciation and amortization expense |  | 485 | 488
Total cost of sales |  | 25,377 | 21,040
Other operating expenses |  | 10 | 0
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 238 | 192
Depreciation and amortization expense |  | 13 | 12
Operating income |  | $ 801 | 528
Disclosure of Entity's Reportable Segments (Textual) |  |  |
Number of reportable segments | segment |  | 3 |
Number of petroleum refineries | refinery |  | 15 |
Number of ethanol plants | ethanol_plant |  | 11 |
Corporate, Reconciling Items And Eliminations [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | $ (181) | (166)
Operating income |  | (250) | (204)
Corporate [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 1 | 0
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 238 | 192
Depreciation and amortization expense |  | 13 | 12
Intersegment Eliminations [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | (182) | (166)
Cost of materials and other |  | (181) | (166)
Operating expenses (excluding depreciation and amortization expense reflected below) |  | (1) | 0
Depreciation and amortization expense |  | 0 | 0
Total cost of sales |  | (182) | (166)
Other operating expenses |  | 0 |
Refining [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 25,561 | 20,887
Refining [Member] | Operating Segments [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 25,565 | 20,887
Cost of materials and other |  | 23,188 | 18,807
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 997 | 991
Depreciation and amortization expense |  | 448 | 449
Total cost of sales |  | 24,633 | 20,247
Other operating expenses |  | 10 |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 0 | 0
Depreciation and amortization expense |  | 0 | 0
Operating income |  | 922 | 640
Refining [Member] | Intersegment Eliminations [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 4 | 0
Ethanol [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 877 | 885
Ethanol [Member] | Operating Segments [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 923 | 945
Cost of materials and other |  | 749 | 787
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 111 | 109
Depreciation and amortization expense |  | 18 | 27
Total cost of sales |  | 878 | 923
Other operating expenses |  | 0 |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 0 | 0
Depreciation and amortization expense |  | 0 | 0
Operating income |  | 45 | 22
Ethanol [Member] | Intersegment Eliminations [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 46 | 60
VLP [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 0 | 0
VLP [Member] | Operating Segments [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | 132 | 106
Cost of materials and other |  | 0 | 0
Operating expenses (excluding depreciation and amortization expense reflected below) |  | 29 | 24
Depreciation and amortization expense |  | 19 | 12
Total cost of sales |  | 48 | 36
Other operating expenses |  | 0 |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  | 0 | 0
Depreciation and amortization expense |  | 0 | 0
Operating income |  | 84 | 70
VLP [Member] | Intersegment Eliminations [Member] |  |  |
Segment Information for our Reportable Segments |  |  |
Revenues |  | $ 132 | $ 106
[1] | Includes excise taxes on sales by certain of our international operations of $1,464 million and $1,272 million for the three months ended March 31, 2018 and 2017, respectively.

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