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Basis of Presentation and Summary of Significant Accounting Policies (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |  |  | 12 Months Ended |  | 12 Months Ended | 1 Months Ended | 12 Months Ended
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Dec. 31, 2013 plants refineries branded_wholesale_sites | Dec. 31, 2011 | Aug. 01, 2011 | Dec. 31, 2013 Minimum [Member] | Dec. 31, 2013 Maximum [Member] | Dec. 31, 2013 Valero Energy Partners LP [Member] | Dec. 31, 2013 Diamond Green Holdings LLC [Member] | Dec. 31, 2013 Diamond Green Holdings LLC [Member] Variable Interest Entity, Primary Beneficiary [Member] | Dec. 31, 2013 Diamond Green Holdings LLC [Member] Variable Interest Entity, Not Primary Beneficiary [Member] | Dec. 31, 2012 PI Dock Facilities LLC [Member] | Dec. 31, 2013 PI Dock Facilities LLC [Member] | Dec. 31, 2013 PI Dock Facilities LLC [Member] Variable Interest Entity, Primary Beneficiary [Member] | Dec. 31, 2013 PI Dock Facilities LLC [Member] Variable Interest Entity, Not Primary Beneficiary [Member]
Basis of Presentation and Summary of Significant Accounting Policies (Textual) |  |  |  |  |  |  |  |  |  |  |  |  |
Number of refineries owned | 16 |  |  |  |  |  |  |  |  |  |  |  |
Combined total throughput capacity of petroleum refining | 3,100,000 |  |  |  |  |  |  |  |  |  |  |  |
Number of branded wholesale sites | 7,400 |  |  |  |  |  |  |  |  |  |  |  |
Number of ethanol plants owned | 10 |  |  |  |  |  |  |  |  |  |  |  |
Combined capacity of ethanol (gallons per year) | 1,200,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Noncontrolling interest, ownership percentage by parent |  | 15.00% | 85.00% |  |  | 70.60% |  |  |  |  |  |  |
Feed capacity of diesel plants |  |  |  |  |  |  | 10,000 |  |  |  |  |  |
Joint venture ownership percentage |  |  |  |  |  |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00%
Amount of joint venture construction financing |  |  |  |  |  |  | $ 221 |  |  | $ 90 | $ 13 |  |
Property, plant, and equipment, useful life |  |  |  | 25 years | 30 years |  |  |  |  |  |  |  |

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