XML 130 R100.htm IDEA: XBRL DOCUMENT v3.21.2

Debt and Capital Structure - Unsecured Notes (Details) $ in Millions, $ in Millions		1 Months Ended		3 Months Ended		9 Months Ended
	Oct. 20, 2021 CAD ($)	Sep. 30, 2021 CAD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2021 CAD ($)	Sep. 30, 2020 CAD ($)	Sep. 30, 2021 CAD ($)	Sep. 30, 2020 CAD ($)	Oct. 20, 2021 USD ($)	Sep. 30, 2021 USD ($)	Sep. 24, 2021 USD ($)	Sep. 16, 2021 USD ($)	Sep. 13, 2021 CAD ($)	Jan. 01, 2021 CAD ($)	Jan. 01, 2021 USD ($)	Dec. 31, 2020 CAD ($)
Disclosure of detailed information about borrowings [line items]
Long-Term Debt		$ 12,986		$ 12,986		$ 12,986									$ 7,441
Repayments of long-term debt				$ 2,336	$ 0	$ 2,336	$ 112
Unsecured Notes
Disclosure of detailed information about borrowings [line items]
Repayments of long-term debt			$ 1,800
Loss on repurchase of debt		$ 115
Total debt principal									$ 1,700
Canadian Dollar Denominated Unsecured Notes | The Arrangement
Disclosure of detailed information about borrowings [line items]
Long-term debt, fair value													$ 2,900
Long-Term Debt													2,800
U.S. Dollar Denominated Unsecured Notes
Disclosure of detailed information about borrowings [line items]
Long-Term Debt								$ 7,400
U.S. Dollar Denominated Unsecured Notes | The Arrangement
Disclosure of detailed information about borrowings [line items]
Long-term debt, fair value													3,400
Long-Term Debt													$ 3,000	$ 2,400
Senior Unsecured Notes
Disclosure of detailed information about borrowings [line items]
Long-Term Debt												$ 1,250
Senior unsecured notes, 2.65%, maturing January 15, 2032
Disclosure of detailed information about borrowings [line items]
Long-Term Debt												$ 500
Long-term debt, interest rate												2.65%
Senior unsecured notes, 3.75%, maturing February 15, 2052
Disclosure of detailed information about borrowings [line items]
Long-Term Debt												$ 750
Long-term debt, interest rate												3.75%
Unsecured notes, 3.95%, maturing 2022
Disclosure of detailed information about borrowings [line items]
Long-term debt, interest rate								3.95%			3.95%
Principal amount of debt repayments											$ 254
Unsecured notes, 3.00%, maturing 2022
Disclosure of detailed information about borrowings [line items]
Long-term debt, interest rate								3.00%			3.00%
Principal amount of debt repayments											$ 321
Unsecured notes, 3.80%, maturing 2023
Disclosure of detailed information about borrowings [line items]
Long-term debt, interest rate										3.80%
Principal amount of debt repayments										$ 335
Unsecured notes, 4.00%, maturing 2024
Disclosure of detailed information about borrowings [line items]
Long-term debt, interest rate										4.00%
Principal amount of debt repayments										$ 481
Unsecured notes, 5.38%, maturing 2025
Disclosure of detailed information about borrowings [line items]
Long-term debt, interest rate										5.38%
Principal amount of debt repayments										$ 334
Unsecured Notes, 3.95 and 3.00 Percent, Maturing 2022
Disclosure of detailed information about borrowings [line items]
Long-Term Debt								$ 425
Principal amount of debt repayments								$ 433
Net premium on debt redemption	$ 6

X

- Definition

Borrowings, Fair Value

+ References

No definition available.

+ Details

Name:	cve_BorrowingsFairValue
Namespace Prefix:	cve_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Borrowings, Repayments of Principal

+ References

No definition available.

+ Details

Name:	cve_BorrowingsRepaymentsOfPrincipal
Namespace Prefix:	cve_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Net premium on debt redemption

+ References

No definition available.

+ Details

Name:	cve_NetPremiumOnDebtRedemption
Namespace Prefix:	cve_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The amount of outstanding funds that the entity is obligated to repay.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 55
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_Borrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IFRS
-Number 7
-IssueDate 2021-01-01
-Paragraph 7
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_7&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_BorrowingsInterestRate
Namespace Prefix:	ifrs-full_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

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

X

- Definition

The gain (loss) arising from the difference between the carrying amount of the financial liability extinguished and the measurement of the consideration paid (equity instruments issued) to the creditor. [Refer: Carrying amount [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRIC
-Number 19
-IssueDate 2021-01-01
-Paragraph 11
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRIC&num=19&code=ifrs-tx-2021-en-r&anchor=para_11&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_GainLossArisingFromDifferenceBetweenCarryingAmountOfFinancialLiabilityExtinguishedAndConsiderationPaid
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2021-01-01
-Paragraph 112
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_NotionalAmount
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The cash outflow for repayments of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 7
-IssueDate 2021-01-01
-Paragraph 17
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_RepaymentsOfNoncurrentBorrowings
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_CanadianDollarDenominatedUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	cve_DebtInstrument1Axis=cve_TheArrangementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_USDollarDenominatedUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_SeniorUnsecuredNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_SeniorUnsecuredNotes265PercentMaturingJanuary152032Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_SeniorUnsecuredNotes375PercentMaturingFebruary152052Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes395PercentMaturing2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes300PercentMaturing2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes380PercentMaturing2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes400PercentMaturing2024Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes538PercentMaturing2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_BorrowingsByNameAxis=cve_UnsecuredNotes395And300PercentMaturing2022Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: