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Revenue - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Nitrogen Fertilizer Segment
Schedule of Contract with Customer, Liability, Activity [Line Items]
Recognized revenue	$ 49	$ 14

X

- Definition

[Line Items] for Schedule of Contract with Customer, Liability, Activity [Table]

+ References

No definition available.

+ Details

Name:	cvi_ScheduleOfContractWithCustomerLiabilityActivityLineItems
Namespace Prefix:	cvi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-8

+ Details

Name:	us-gaap_ContractWithCustomerLiabilityRevenueRecognized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=cvi_NitrogenFertilizerSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: