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Selected Quarterly Financial Information (unaudited) (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Sep. 30, 2013	Dec. 31, 2013
Unusual or Infrequent Item [Line Items]
Lower of FIFO cost or market inventory adjustment	$ 36.8us-gaap_InventoryWriteDown
Coffeyville Refinery Incident, Fire Isomerization Unit | CVR Refining, LP
Unusual or Infrequent Item [Line Items]
Property damage gross repair and other costs		6.3cvi_PropertyDamageGrossRepairandOtherCosts / dei_LegalEntityAxis = cvi_CVRRefiningLimitedPartnershipMember / us-gaap_UnusualOrInfrequentItemAxis = cvi_CoffeyvilleRefineryIncidentFireIsomerizationUnitMember
Coffeyville refinery | Fluid Catalytic Cracking Unit Outage
Unusual or Infrequent Item [Line Items]
Number of days offline			55 days
Wynnewood refinery | Fluid Catalytic Cracking Unit Outage
Unusual or Infrequent Item [Line Items]
Number of days offline	16 days
Direct Operating Expenses | Coffeyville Refinery Incident, Fire Isomerization Unit | CVR Refining, LP
Unusual or Infrequent Item [Line Items]
Property damage gross repair and other costs		6.3cvi_PropertyDamageGrossRepairandOtherCosts / us-gaap_IncomeStatementLocationAxis = cvi_DirectOperatingCostsMember / dei_LegalEntityAxis = cvi_CVRRefiningLimitedPartnershipMember / us-gaap_UnusualOrInfrequentItemAxis = cvi_CoffeyvilleRefineryIncidentFireIsomerizationUnitMember
Direct Operating Expenses | Coffeyville refinery | Fluid Catalytic Cracking Unit Outage
Unusual or Infrequent Item [Line Items]
Property damage gross repair and other costs				21.1cvi_PropertyDamageGrossRepairandOtherCosts / us-gaap_IncomeStatementLocationAxis = cvi_DirectOperatingCostsMember / cvi_MajorMaintenanceActivitiesByFacilityAxis = cvi_CoffeyvilleRefineryMember / us-gaap_UnusualOrInfrequentItemAxis = cvi_FluidCatalyticCrackingUnitOutageMember
Direct Operating Expenses | Wynnewood refinery | Fluid Catalytic Cracking Unit Outage
Unusual or Infrequent Item [Line Items]
Property damage gross repair and other costs	8.5cvi_PropertyDamageGrossRepairandOtherCosts / us-gaap_IncomeStatementLocationAxis = cvi_DirectOperatingCostsMember / cvi_MajorMaintenanceActivitiesByFacilityAxis = cvi_WynnewoodRefineryMember / us-gaap_UnusualOrInfrequentItemAxis = cvi_FluidCatalyticCrackingUnitOutageMember
Cost of Goods Sold, Excluding Depreciation, Depletion, and Amortization
Unusual or Infrequent Item [Line Items]
Lower of FIFO cost or market inventory adjustment	$ 36.8us-gaap_InventoryWriteDown / us-gaap_IncomeStatementLocationAxis = cvi_CostofGoodsSoldExcludingDepreciationDepletionandAmortizationMember

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- Definition

Charge to cost of goods sold that represents the reduction of the carrying amount of inventory, generally attributable to obsolescence or market conditions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.2)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 330

-SubTopic 10

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