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Goodwill - Additional Information (Detail) - CAD ($) | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Goodwill [Abstract] |  |
Goodwill impairments | $ 0 | $ 0

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- Definition Goodwill abstract. + References No definition available. + Details
Name: | cve_GoodwillAbstract
Namespace Prefix: | cve_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition The amount of impairment loss recognised in profit or loss for goodwill. [Refer: Impairment loss recognised in profit or loss; Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B67 -Subparagraph d -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d_v&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
Name: | ifrs-full_ImpairmentLossRecognisedInProfitOrLossGoodwill
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration