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Significant accounting policies (Details) - Schedule of useful lives of intangible assets	12 Months Ended
	Dec. 31, 2022
Data Access Agreement [Member]
Schedule of useful lives of intangible assets [Abstract]
Range	Straight-line over 14 years
Data Purchases [Member]
Schedule of useful lives of intangible assets [Abstract]
Range	Indefinite life intangible asset

X

- Definition

Range.

+ References

No definition available.

+ Details

Name:	cve_CategoryRange
Namespace Prefix:	cve_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	cve_SignificantaccountingpoliciesDetailsScheduleofusefullivesofintangibleassetsLineItems
Namespace Prefix:	cve_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=cve_DataAccessAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_CategoriesOfRelatedPartiesAxis=cve_DataPurchasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: