XML 166 R131.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Contingent Payment - Summary of Contingent Payment (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Disclosure of contingent liabilities in business combination [abstract] |  |
Contingent liabilities recognised in business combination at beginning of period | $ 63 | $ 143
Re-measurement | 575 | (80)
Liabilities Settled or Payable | (402) | 0
Contingent liabilities recognised in business combination at end of period | $ 236 | $ 63

X
- Definition Re-measurement of contingent payments. + References No definition available. + Details
Name: | cve_ReMeasurementOfContingentPayments
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of contingent liabilities recognised in a business combination. [Refer: Contingent liabilities [member]; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B67 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_ContingentLiabilitiesRecognisedInBusinessCombination
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | ifrs-full_DisclosureOfContingentLiabilitiesInBusinessCombinationAbstract
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of contingent liabilities recognised in a business combination that were settled. [Refer: Contingent liabilities recognised in business combination] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B67 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
Name: | ifrs-full_SettledLiabilitiesContingentLiabilitiesRecognisedInBusinessCombination
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration