XML 116 R91.htm IDEA: XBRL DOCUMENT
v3.24.3

Financial Instruments - Summary of Fair Value Hierarchy for Risk Management Assets and Liabilities Carried at Fair Value (Detail) - CAD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure Of Levels Of Fair Value Hierarchy [Line Items] |  |
Fair value of derivative financial instruments net | $ (11) | $ 12
Level 2 of fair value hierarchy |  |
Disclosure Of Levels Of Fair Value Hierarchy [Line Items] |  |
Fair value of derivative financial instruments | 2 | (6)
Fair value of derivative financial instruments net | (11) | 12
Level 3 of fair value hierarchy |  |
Disclosure Of Levels Of Fair Value Hierarchy [Line Items] |  |
Fair value of derivative financial instruments | $ (13) | $ 18

X
- Definition Disclosure of levels of fair value hierarchy. + References No definition available. + Details
Name: | cve_DisclosureOfLevelsOfFairValueHierarchyLineItems
Namespace Prefix: | cve_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair Value Of Derivative Financial Instruments + References No definition available. + Details
Name: | cve_FairValueOfDerivativeFinancialInstruments
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of derivative financial instruments net. + References No definition available. + Details
Name: | cve_FairValueOfDerivativeFinancialInstrumentsNet
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level2OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_LevelsOfFairValueHierarchyAxis=ifrs-full_Level3OfFairValueHierarchyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |