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Inventories (Details) (USD $) | Jun. 30, 2014 | Dec. 31, 2013
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Schedule of Inventories |  |
Refinery feedstocks | $ 3,380,000,000 | $ 2,135,000,000
Refined products and blendstocks | 2,732,000,000 | 3,231,000,000
Ethanol feedstocks and products | 182,000,000 | 166,000,000
Materials and supplies | 232,000,000 | 226,000,000
Inventories | 6,526,000,000 | 5,758,000,000
Inventories (Textual) |  |
Excess of market value over carrying amount of LIFO inventories | 7,200,000,000 | 6,900,000,000
Amount of non-LIFO inventory | $ 914,000,000 | $ 851,000,000

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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 SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a -Article 5 Reference 2: 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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