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Segment Information, Activity (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 USD ($) | [1] | Sep. 30, 2017 USD ($) | Jun. 30, 2017 USD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Sep. 30, 2016 USD ($) | [2] | Jun. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2017 USD ($) segment | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($)
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues | $ 26,392 | $ 23,562 | $ 22,254 | $ 21,772 | $ 20,712 | $ 19,649 | $ 19,584 | [3] | $ 15,714 | [4] | $ 93,980 | [5] | $ 75,659 | [5] | $ 87,804 | [5]
Cost of materials and other |  |  |  |  |  |  |  |  |  |  | 83,037 |  | 65,962 |  | 73,861 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 4,462 |  | 4,207 |  | 4,243 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 1,934 |  | 1,846 |  | 1,795 |
Lower of cost or market inventory valuation adjustment |  |  |  |  |  |  | (454) |  | (293) |  | 0 |  | (747) |  | 790 |
Total cost of sales |  |  |  |  |  |  |  |  |  |  | 89,433 |  | 71,268 |  | 80,689 |
Other operating expenses |  |  |  |  |  |  |  |  |  |  | 61 |  | 0 |  | 0 |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 835 |  | 715 |  | 710 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 52 |  | 48 |  | 47 |
Asset impairment loss |  |  |  |  |  |  | 56 |  |  |  | 0 |  | 56 |  | 0 |
Operating income by segment | $ 853 | $ 1,338 | $ 871 | $ 537 | $ 620 | $ 892 | $ 1,231 | [3] | $ 829 | [4] | 3,599 |  | 3,572 |  | 6,358 |
Total expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  | $ 1,948 |  | 1,996 |  | 2,350 |
Segment Information (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | segment |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |
Corporate, Reconciling Items, and Eliminations[Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | $ (629) |  | (573) |  | (395) |
Operating income by segment |  |  |  |  |  |  |  |  |  |  | (882) |  | (763) |  | (757) |
Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 5 |  | 0 |  | 0 |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 835 |  | 715 |  | 710 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 52 |  | 48 |  | 47 |
Asset impairment loss |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Total expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  | 44 |  | 38 |  | 29 |
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | (634) |  | (573) |  | (395) |
Cost of materials and other |  |  |  |  |  |  |  |  |  |  | (632) |  | (573) |  | (395) |
Operating expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | (2) |  | 0 |  | 0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Total cost of sales |  |  |  |  |  |  |  |  |  |  | (634) |  | (573) |  | (395) |
Other operating expenses |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
Refining [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 90,651 |  | 71,968 |  | 84,521 |
Refining [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 90,657 |  | 71,968 |  | 84,521 |
Cost of materials and other |  |  |  |  |  |  |  |  |  |  | 80,865 |  | 63,405 |  | 71,512 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 3,917 |  | 3,696 |  | 3,689 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 1,800 |  | 1,734 |  | 1,699 |
Lower of cost or market inventory valuation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | (697) |  | 740 |
Total cost of sales |  |  |  |  |  |  |  |  |  |  | 86,582 |  | 68,138 |  | 77,640 |
Other operating expenses |  |  |  |  |  |  |  |  |  |  | 58 |  |  |  |  |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Asset impairment loss |  |  |  |  |  |  |  |  |  |  |  |  | 56 |  |  |
Operating income by segment |  |  |  |  |  |  |  |  |  |  | 4,017 |  | 3,774 |  | 6,881 |
Total expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  | 1,710 |  | 1,867 |  | 2,216 |
Refining [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 6 |  | 0 |  | 0 |
Ethanol [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 3,324 |  | 3,691 |  | 3,283 |
Ethanol [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 3,500 |  | 3,901 |  | 3,434 |
Cost of materials and other |  |  |  |  |  |  |  |  |  |  | 2,804 |  | 3,130 |  | 2,744 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 443 |  | 415 |  | 448 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 81 |  | 66 |  | 50 |
Lower of cost or market inventory valuation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | (50) |  | 50 |
Total cost of sales |  |  |  |  |  |  |  |  |  |  | 3,328 |  | 3,561 |  | 3,292 |
Other operating expenses |  |  |  |  |  |  |  |  |  |  | 0 |  |  |  |  |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Asset impairment loss |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Operating income by segment |  |  |  |  |  |  |  |  |  |  | 172 |  | 340 |  | 142 |
Total expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  | 84 |  | 68 |  | 67 |
Ethanol [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 176 |  | 210 |  | 151 |
VLP [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
VLP [Member] | Operating Segments [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | 452 |  | 363 |  | 244 |
Cost of materials and other |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Operating expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 104 |  | 96 |  | 106 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 53 |  | 46 |  | 46 |
Lower of cost or market inventory valuation adjustment |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |
Total cost of sales |  |  |  |  |  |  |  |  |  |  | 157 |  | 142 |  | 152 |
Other operating expenses |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |
General and administrative expenses (excluding depreciation and amortization expense reflected below) |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Depreciation and amortization expense |  |  |  |  |  |  |  |  |  |  | 0 |  | 0 |  | 0 |
Asset impairment loss |  |  |  |  |  |  |  |  |  |  |  |  | 0 |  |  |
Operating income by segment |  |  |  |  |  |  |  |  |  |  | 292 |  | 221 |  | 92 |
Total expenditures for long-lived assets |  |  |  |  |  |  |  |  |  |  | 110 |  | 23 |  | 38 |
VLP [Member] | Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Information for our Reportable Segments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  |  |  |  |  |  |  |  |  |  | $ 452 |  | $ 363 |  | $ 244 |
[1] | During the quarter ended December 31, 2017, we recognized an income tax benefit of $1.9 billion related to Tax Reform as described in Note 14.
[2] | During the quarter ended September 30, 2016, we recognized a tax benefit of $42 million related to the Aruba Disposition as described in Note 2.
[3] | During the quarter ended June 30, 2016, we recognized a favorable noncash lower of cost or market inventory valuation adjustment of $454 million as described in Note 4 and an asset impairment loss of $56 million related to the Aruba Disposition as described in Note 2.
[4] | During the quarter ended March 31, 2016, we recognized a favorable noncash lower of cost or market inventory valuation adjustment of $293 million as described in Note 4.
[5] | Includes excise taxes on sales by certain of our international operations of $5,573 million, $5,493 million, and $5,980 million for the years ended December 31, 2017, 2016, and 2015.

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