Represents the estimated closure and post-closure costs included in environmental accrual.

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations pertains to Biofuels blending. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Capital Expenditures, Expense Incurred to Date

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the civil penalty paid under the Second Consent Decree.

+ References

No definition available.

+ Details

Name:	cvi_EnvironmentalLossContingenciesCivilPenalty
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the payment of civil penalties.

+ References

No definition available.

+ Details

Name:	cvi_EnvironmentalLossContingenciesCivilPenaltyPaid
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the expected remaining costs under the Wynnewood Consent Order.

+ References

No definition available.

+ Details

Name:	cvi_EnvironmentalLossContingenciesExpectedRemainingCosts
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of refining capacity

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the costs related to comply with the Second Consent Decree.

+ References

No definition available.

+ Details

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Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the expense incurred for the purchase of Renewable Identification Numbers.

+ References

No definition available.

+ Details

Name:	cvi_ExpenseIncurredToPurchaseRenewableIdentificationNumbers
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the number of marquee issues under the Clean Air Act.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of landfills.

+ References

No definition available.

+ Details

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

- Definition

Total costs accrued as of the balance sheet date for environmental loss contingencies.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 25

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

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Balance Type:	na
Period Type:	duration

- Definition

Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 20

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 7

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.20)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section 45

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=28358313&loc=d3e6911-107765

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 50

-Paragraph 10

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of environmental remediation costs capitalized. These expenditures may relate to long-lived improvements in operating facilities.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 410

-SubTopic 30

-Section 25

-Paragraph 18

-URI http://asc.fasb.org/extlink&oid=39739230&loc=d3e11660-110855

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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Namespace Prefix:
Data Type:	na
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- Details

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- Details

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Commitments and Contingencies (Details 5) (USD $)	12 Months Ended			1 Months Ended
Commitments and Contingencies (Details 5) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Aug. 31, 2011	Mar. 31, 2012 issue
Environmental, Health, and Safety ("EHS") Matters
Expenses related to environmental, health and safety ("EHS") matters	$ 100,600,000	$ 111,300,000	$ 28,400,000
WRC
Environmental, Health, and Safety ("EHS") Matters
Payment of civil penalties				950,000
Expected remaining costs under consent order	3,000,000
EHS
Environmental, Health, and Safety ("EHS") Matters
Environmental accruals	1,100,000	1,500,000
Environmental accruals included in other current liabilities	200,000	300,000
Estimated closure and post-closure costs	900,000	700,000
Number of landfills	2	2
EHS \| CRRM
Environmental, Health, and Safety ("EHS") Matters
Cost of renewable identification numbers	127,200,000	180,500,000	21,000,000
Biofuel blending obligation recorded in other current liabilities	52,300,000	17,400,000
Marquee issues under the Clean Air Act					4
Percentage of refining capacity					90.00%
Environmental civil penalty					700,000
Remaining costs associated with Second Consent Decree	44,000,000
MSAT II \| CRRM
Environmental, Health, and Safety ("EHS") Matters
Expense incurred to date	47,600,000
MSAT II \| WRC
Environmental, Health, and Safety ("EHS") Matters
Expense incurred to date	$ 88,300,000