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Segment Information, Total Assets by Reportable Segments (Details) - USD ($) $ in Millions | Dec. 31, 2015 | Dec. 31, 2014
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Total assets by reportable segments |  |
Reportable segment assets | $ 44,343 | $ 45,550
Refining [Member] |  |
Total assets by reportable segments |  |
Reportable segment assets | 38,142 | 40,103
Ethanol [Member] |  |
Total assets by reportable segments |  |
Reportable segment assets | 1,016 | 954
Corporate [Member] |  |
Total assets by reportable segments |  |
Reportable segment assets | $ 5,185 | $ 4,493

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 + Details
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- Definition Reportable Segment Total Assets [Abstract] + References No definition available. + Details
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- Details
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- Details
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- Details
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