Instruments With Potential Future Dilutive Effect Not Included In Calculation Of Diluted Earnings Per Share, Shares

No definition available.

Name:	cve_InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareShares
Namespace Prefix:	cve_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Instruments With Potential Future Dilutive Effect Not Included In Calculation Of Diluted Earnings Per Share, Value

+ References

No definition available.

+ Details

Name:	cve_InstrumentsWithPotentialFutureDilutiveEffectNotIncludedInCalculationOfDilutedEarningsPerShareValue
Namespace Prefix:	cve_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount of dividends proposed or declared after the reporting period but before financial statements are authorised for issue. Such dividends are not recognised as a liability at the end of the reporting period because no obligation exists at that time.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 10
-IssueDate 2022-03-24
-Paragraph 13
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=10&code=ifrs-tx-2022-en-r&anchor=para_13&doctype=Standard
-URIDate 2022-03-24

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 137
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_137_a&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwners
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Definition

The amount, per share, of dividends proposed or declared before financial statements were authorised for issue but not recognised as distribution to owners.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2022-03-24
-Paragraph 137
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_137_a&doctype=Standard
-URIDate 2022-03-24

+ Details

Name:	ifrs-full_DividendsProposedOrDeclaredBeforeFinancialStatementsAuthorisedForIssueButNotRecognisedAsDistributionToOwnersPerShare
Namespace Prefix:	ifrs-full_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	ifrs-full_TypesOfSharebasedPaymentArrangementsAxis=cve_NetSettlementRightsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_PotentialOrdinaryShareTransactionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_PreferenceSharesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=cve_PreferredStockDividendTransactionsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Per Share Amounts - Additional Information (Detail) - CAD ($) $ / shares in Units, shares in Millions, $ in Millions		12 Months Ended
	Feb. 15, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net settlement rights
Disclosure of non-adjusting events after reporting period [line items]
Instruments excluded from calculation, shares (in shares)			18.0	31.0
Common shares
Disclosure of non-adjusting events after reporting period [line items]
Instruments excluded from calculation, value		$ 52	$ 22	$ 0
Instruments excluded from calculation, shares (in shares)		1.6	1.9	0.0
Common shares \| Potential ordinary share transactions
Disclosure of non-adjusting events after reporting period [line items]
Dividends declared (in CAD per share)	$ 0.105
Preference shares \| Preferred Stock Dividend Transactions
Disclosure of non-adjusting events after reporting period [line items]
Dividends declared	$ 9