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Commitments and Contingencies (Details 8)	Sep. 28, 2012 employee
Wynnewood refinery incident
Loss Contingencies [Line Items]
Number of employees fatally injured	2

X

- Definition

Represents the number of employees fatally injured.

+ References

No definition available.

+ Details

Name:	cvi_NumberOfEmployeesFatallyInjured
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_LossContingenciesLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=cvi_WynnewoodRefineryIncidentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: