XML 127 R97.htm IDEA: XBRL DOCUMENT
v3.21.2

Debt and Capital Structure - Additional Information (Detail) | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2021 CAD ($) | Oct. 07, 2021 USD ($) | Sep. 30, 2021 USD ($) | Jan. 01, 2021 CAD ($) | Dec. 31, 2020 CAD ($) | Dec. 31, 2020 USD ($)
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | $ 0 |  |  |  | $ 0 |
Maximum debt to capitalization ratio | 65.00% |  | 65.00% |  |  |
Outstanding letters of credit | $ 507,000,000 |  |  |  | 441,000,000 |
Amount remaining under prospectus for permitted offerings |  |  | $ 2,400,000,000 |  |  |
Debt offering, maximum amount |  | $ 5,000,000,000 |  |  |  |
WRB Refining LP |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | 48,000,000 |  |  |  | 121,000,000 |
Sunrise Oil Sands Partnership |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | 0 |  |  |  | 0 |
Top of range |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | 2,400,000,000 |  |  |  | 1,600,000,000 |
Amount of undrawn facilities for general purposes | 1,300,000,000 |  |  |  | 600,000,000 |
Top of range | WRB Refining LP |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities |  |  | 300,000,000 |  |  |
Top of range | WRB Refining LP | Cenovus Energy Inc |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities |  |  | 150,000,000 |  |  |
Top of range | Sunrise Oil Sands Partnership |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | 10,000,000 |  |  |  |  |
Top of range | Sunrise Oil Sands Partnership | Cenovus Energy Inc |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities | 5,000,000 |  |  |  |  |
Cenovus And Husky Merger |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Outstanding letters of credit |  |  |  | $ 427,000,000 |  |
Cenovus And Husky Merger | Top of range |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Committed demand facilities |  |  |  | 975,000,000 |  |
Amount of undrawn facilities for general purposes |  |  |  | 850,000,000 |  |
Undrawn borrowing facilities |  |  |  | $ 40,000,000 |  |
Long-Term Debt |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Total debt principal | $ 12,700,000,000 |  | $ 7,810,000,000 |  | $ 7,510,000,000 | $ 5,898,000,000
Top of range |  |  |  |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |  |  |  |
Target Net Debt to Adjusted EBITDA Ratio | 2.0 |  |  |  |  |

X
- Definition Amount remaining under prospectus for permitted offerings + References No definition available. + Details
Name: | cve_AmountRemainingUnderProspectusForPermittedOfferings
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Borrowings, Maximum Debt Offering Amount + References No definition available. + Details
Name: | cve_BorrowingsMaximumDebtOfferingAmount
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Letters of credit issued as security for performance. + References No definition available. + Details
Name: | cve_LettersOfCreditIssuedAsSecurityForPerformance
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The debt to capitalization ratio the company cannot exceed under the committed credit facility agreement. + References No definition available. + Details
Name: | cve_MaximumDebtToCapitalizationRatioPercentage
Namespace Prefix: | cve_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Target net debt to adjusted earnings before interest taxes depreciation depletion and amortization ratio. + References No definition available. + Details
Name: | cve_TargetNetDebtToAdjustedEarningsBeforeInterestTaxesDepreciationDepletionAndAmortizationRatio
Namespace Prefix: | cve_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of undrawn borrowing facilities that may be available for general purposes. + References No definition available. + Details
Name: | cve_UndrawnBorrowingFacilitiesForGeneralPurposes
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Undrawn Borrowing Facilities, Outstanding + References No definition available. + Details
Name: | cve_UndrawnBorrowingFacilitiesOutstanding
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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 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 amount of undrawn borrowing facilities that may be available for future operating activities and to settle capital commitments. [Refer: Capital commitments] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 50 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_50_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_UndrawnBorrowingFacilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_JointOperationsAxis=cve_WRBRefiningLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointOperationsAxis=cve_SunriseOilSandsPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=cve_CenovusEnergyIncMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=cve_CenovusAndHuskyMergerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfFinancialLiabilitiesAxis=ifrs-full_LongtermBorrowingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |