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Commitments and Contingencies Energy Narrative (Details) (Energy Segment [Member], USD $) | 3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 6 Months Ended | 5 Months Ended | 1 Months Ended | 6 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | 0 Months Ended | 6 Months Ended | 1 Months Ended | 6 Months Ended | 0 Months Ended |  | 6 Months Ended |  | 6 Months Ended
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Jun. 30, 2012 | Jun. 30, 2012 | Jun. 30, 2012 CVR Energy, Inc. [Member] | Jun. 30, 2012 CVR Energy, Inc. [Member] | Jun. 30, 2012 CRRM [Member] | Dec. 31, 2011 CRNF [Member] | Dec. 31, 2010 CRNF [Member] | Dec. 31, 2009 CRNF [Member] | Dec. 31, 2008 CRNF [Member] | Jun. 30, 2012 WRC [Member] | Jul. 31, 2009 Crude Oil, Indirect Supplier [Member] OKLAHOMA CRRM [Member] Dismissed Without Prejudice [Member] litigation_cases | Jul. 31, 2009 Crude Oil, Indirect Supplier [Member] NEW MEXICO CRRM [Member] Dismissed Without Prejudice [Member] litigation_cases | May 31, 2010 Crude Oil, Indirect Supplier [Member] OKLAHOMA and KANSAS [Member] CRRM [Member] Pending Litigation [Member] litigation_cases | Jun. 30, 2012 Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Pending Litigation [Member] | Jun. 30, 2010 Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Pending Litigation [Member] plaintiffs | May 31, 2008 Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Settled [Member] plaintiffs | Jun. 30, 2010 Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Pending Litigation and Settled, Aggregate [Member] plaintiffs | Feb. 10, 2010 EPA, Second Consent Decree, Clean Air Act [Member] CRRM [Member] | Jun. 30, 2012 EPA, Second Consent Decree, Clean Air Act [Member] CRRM [Member] | Aug. 31, 2011 ODEQ [Member] WRC [Member] | Jun. 30, 2012 ODEQ [Member] WRC [Member] | Oct. 25, 2010 U.S. Coast Guard / EPA [Member] Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Pending Litigation [Member] | Jun. 30, 2012 U.S. Coast Guard / EPA [Member] Crude Oil Discharge [Member] KANSAS CVR Energy, Inc. [Member] Pending Litigation [Member] | Jun. 30, 2012 Air Emissions Reduction and Water Conservation [Member] EPA, Second Consent Decree, Clean Air Act [Member] CRRM [Member] | Jun. 30, 2012 Coffeyville, Kansas Refinery and Phillipsburg, Kansas Terminal Facility [Member] KANSAS CRRM and CRT [Member] | Jun. 30, 2012 CVR Energy, Inc. [Member]
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lease expense |  |  | $ 2,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000
Lawsuits Filed Against Company |  |  |  |  |  |  |  |  |  |  | 15 | 2 | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Average increase in annual property tax expense |  |  |  |  |  | 11,000,000 | 12,000,000 | 11,000,000 | 11,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of claimants / plaintiffs |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 16 | 3 |  |  |  |  |  |  |  |  |
Compensatory damages sought |  |  |  | 18,500,000 |  |  |  |  |  |  |  |  |  |  |  | 4,000,000 | 3,000,000 | 1,000,000 |  |  |  | 2,000,000 |  |  |  |
Civil penalties, anticipated minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  |
Insurance proceeds under primary environmental liability insurance policy |  |  |  |  |  |  |  |  |  |  |  |  |  | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Accrued environmental liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |
Estimated closure and post-closure costs included in accred environmental liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |
Capital expenditures to comply with environmental rules |  |  |  |  | 45,000,000 |  |  |  |  | 49,000,000 |  |  |  |  |  |  |  |  | 49,000,000 |  | 2,000,000 |  |  | 1,000,000 |  |
Percentage of all fuel used required to be renewable fuel |  |  |  |  | 8.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proposed percentage of all fuel used required to be renewable fuel |  |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. refineries entered into environmental regulatory concent decree, minimum percentage of U.S. refining capacity |  |  |  |  | 90.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Civil penalty, anticipated maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000,000 |  |  |  |  |  |  |
Capital expenditures to comply with environmental rules, expected to be capital expenditures |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 47,000,000 |  |  |  |  |  |  |
Civil penalty paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 950,000 |  |  |  |  |  |
Environmental expenditures capitalized | $ 4,000,000 | $ 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

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