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v3.3.1.900

Inventories (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule of Inventories |  |  |
Refinery feedstocks | $ 2,404 | $ 2,269 |
Refined products and blendstocks | 3,774 | 3,926 |
Ethanol feedstocks and products | 242 | 195 |
Materials and supplies | 244 | 233 |
Inventories, before lower of cost or market inventory valuation reserve | 6,664 | 6,623 |
Lower of cost or market inventory valuation reserve | (766) | 0 |
Inventories | 5,898 | 6,623 |
Inventories (Textual) |  |  |
Lower of cost or market inventory valuation adjustment | 790 | 0 | $ 0
Excess of market value over carrying amount of LIFO inventories |  | 857 |
Effect of LIFO inventory liquidation on income, decrease |  |  | $ 17
Inventory not valued at LIFO | $ 668 | $ 906 |

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- Definition Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(a)(4),(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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