XML 122 R86.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Description of Business and Segmented Disclosures - Schedule of Segment and Operational Information (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Revenues |  |  |
Gross Sales |  | $ 55,474 | $ 71,765
Less: Royalties |  | 3,270 | 4,868
Revenues |  | 52,204 | 66,897
Expenses |  |  |
Purchased Product | [1] | 24,715 | 33,958
Transportation and Blending | [1] | 10,141 | 11,126
Operating | [1] | 6,352 | 5,816
(Gain) Loss on Risk Management |  | 61 | 1,636
Depreciation, Depletion and Amortization |  | 4,644 | 4,679
Exploration Expense |  | 42 | 101
(Income) Loss From Equity-Accounted Affiliates |  | (51) | (15)
Segment Income (Loss) |  | 6,300 | 9,596
General and Administrative |  | 688 | 865
Finance Costs |  | 671 | 820
Interest Income |  | (133) | (81)
Integration, Transaction and Other Costs |  | 85 | 106
Foreign Exchange (Gain) Loss, Net |  | (67) | 343
Revaluation (Gain) Loss |  | 34 | (549)
Re-measurement of Contingent Payment |  | 59 | 162
(Gain) Loss on Divestiture of Assets |  | (14) | (269)
Other (Income) Loss, Net |  | (63) | (532)
Total Non-operating (Income) Expense |  | 1,260 | 865
Earnings (Loss) Before Income Tax |  | 5,040 | 8,731
Income Tax Expense (Recovery) |  | 931 | 2,281
Net Earnings (Loss) |  | 4,109 | 6,450
Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 9 | 1,762
Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 52 | (126)
Upstream |  |  |
Revenues |  |  |
Gross Sales |  | 31,082 | 41,142
Less: Royalties |  | 3,270 | 4,868
Revenues |  | 27,812 | 36,274
Expenses |  |  |
Purchased Product |  | 3,152 | 6,741
Transportation and Blending |  | 11,088 | 12,301
Operating |  | 3,690 | 3,789
Operating Margin |  | 9,870 | 11,824
Depreciation, Depletion and Amortization |  | 3,866 | 3,718
Exploration Expense |  | 42 | 101
(Income) Loss From Equity-Accounted Affiliates |  | (51) | (15)
Segment Income (Loss) |  | 6,017 | 8,075
Upstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 12 | 1,619
Upstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (4) | (55)
Downstream |  |  |
Revenues |  |  |
Gross Sales |  | 32,626 | 38,010
Less: Royalties |  | 0 | 0
Revenues |  | 32,626 | 38,010
Expenses |  |  |
Purchased Product |  | 28,273 | 32,409
Transportation and Blending |  | 0 | 0
Operating |  | 3,201 | 3,050
Operating Margin |  | 1,152 | 2,439
Depreciation, Depletion and Amortization |  | 671 | 848
Exploration Expense |  | 0 | 0
(Income) Loss From Equity-Accounted Affiliates |  | 0 | 0
Segment Income (Loss) |  | 498 | 1,573
Downstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 112
Downstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (17) | 18
Oil Sands |  |  |
Revenues |  |  |
Gross Sales |  |  | 34,683
Expenses |  |  |
Purchased Product |  |  | 4,718
Oil Sands | Upstream |  |  |
Revenues |  |  |
Gross Sales |  | 26,192 | 34,683
Less: Royalties |  | 3,059 | 4,493
Revenues |  | 23,133 | 30,190
Expenses |  |  |
Purchased Product |  | 1,457 | 4,718
Transportation and Blending |  | 10,774 | 12,036
Operating |  | 2,716 | 2,930
Operating Margin |  | 8,169 | 8,979
Depreciation, Depletion and Amortization |  | 2,993 | 2,763
Exploration Expense |  | 19 | 9
(Income) Loss From Equity-Accounted Affiliates |  | 6 | 8
Segment Income (Loss) |  | 5,136 | 6,267
Oil Sands | Upstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 17 | 1,527
Oil Sands | Upstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 15 | (68)
Conventional |  |  |
Revenues |  |  |
Gross Sales |  |  | 4,439
Expenses |  |  |
Transportation and Blending |  |  | 250
Conventional | Upstream |  |  |
Revenues |  |  |
Gross Sales |  | 3,273 | 4,439
Less: Royalties |  | 112 | 298
Revenues |  | 3,161 | 4,141
Expenses |  |  |
Purchased Product |  | 1,695 | 2,023
Transportation and Blending |  | 298 | 250
Operating |  | 590 | 541
Operating Margin |  | 583 | 1,235
Depreciation, Depletion and Amortization |  | 386 | 370
Exploration Expense |  | 6 | 1
(Income) Loss From Equity-Accounted Affiliates |  | 0 | 0
Segment Income (Loss) |  | 210 | 851
Conventional | Upstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (5) | 92
Conventional | Upstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (19) | 13
Offshore | Upstream |  |  |
Revenues |  |  |
Gross Sales |  | 1,617 | 2,020
Less: Royalties |  | 99 | 77
Revenues |  | 1,518 | 1,943
Expenses |  |  |
Purchased Product |  | 0 | 0
Transportation and Blending |  | 16 | 15
Operating |  | 384 | 318
Operating Margin |  | 1,118 | 1,610
Depreciation, Depletion and Amortization |  | 487 | 585
Exploration Expense |  | 17 | 91
(Income) Loss From Equity-Accounted Affiliates |  | (57) | (23)
Segment Income (Loss) |  | 671 | 957
Offshore | Upstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 0
Offshore | Upstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 0
Canadian Refining | Downstream |  |  |
Revenues |  |  |
Gross Sales |  | 6,233 | 7,792
Less: Royalties |  | 0 | 0
Revenues |  | 6,233 | 7,792
Expenses |  |  |
Purchased Product |  | 4,919 | 6,389
Transportation and Blending |  | 0 | 0
Operating |  | 639 | 704
Operating Margin |  | 675 | 699
Depreciation, Depletion and Amortization |  | 185 | 208
Exploration Expense |  | 0 | 0
(Income) Loss From Equity-Accounted Affiliates |  | 0 | 0
Segment Income (Loss) |  | 490 | 491
Canadian Refining | Downstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 0
Canadian Refining | Downstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 0
U.S. Refining |  |  |
Revenues |  |  |
Gross Sales |  |  | 30,218
Expenses |  |  |
Purchased Product |  |  | 26,020
U.S. Refining | Downstream |  |  |
Revenues |  |  |
Gross Sales |  | 26,393 | 30,218
Less: Royalties |  | 0 | 0
Revenues |  | 26,393 | 30,218
Expenses |  |  |
Purchased Product |  | 23,354 | 26,020
Transportation and Blending |  | 0 | 0
Operating |  | 2,562 | 2,346
Operating Margin |  | 477 | 1,740
Depreciation, Depletion and Amortization |  | 486 | 640
Exploration Expense |  | 0 | 0
(Income) Loss From Equity-Accounted Affiliates |  | 0 | 0
Segment Income (Loss) |  | 8 | 1,082
U.S. Refining | Downstream | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | 0 | 112
U.S. Refining | Downstream | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (17) | 18
Corporate and Eliminations |  |  |
Revenues |  |  |
Gross Sales |  | (8,234) | (7,387)
Less: Royalties |  | 0 | 0
Revenues |  | (8,234) | (7,387)
Expenses |  |  |
Purchased Product |  | (6,710) | (5,192)
Transportation and Blending |  | (947) | (1,175)
Operating |  | (539) | (1,023)
Depreciation, Depletion and Amortization |  | 107 | 113
Exploration Expense |  | 0 | 0
(Income) Loss From Equity-Accounted Affiliates |  | 0 | 0
Segment Income (Loss) |  | (215) | (52)
General and Administrative |  | 688 | 865
Finance Costs |  | 671 | 820
Interest Income |  | (133) | (81)
Integration, Transaction and Other Costs |  | 85 | 106
Foreign Exchange (Gain) Loss, Net |  | (67) | 343
Revaluation (Gain) Loss |  | 34 | (549)
Re-measurement of Contingent Payment |  | 59 | 162
(Gain) Loss on Divestiture of Assets |  | (14) | (269)
Other (Income) Loss, Net |  | (63) | (532)
Total Non-operating (Income) Expense |  | 1,260 | 865
Corporate and Eliminations | Realized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | (3) | 31
Corporate and Eliminations | Unrealized (Gain) Loss |  |  |
Expenses |  |  |
(Gain) Loss on Risk Management |  | $ 73 | $ (89)
[1] | Comparative periods reflect certain revisions. See Note 39.

X
- Definition Corporate and eliminations reportable segment costs. + References No definition available. + Details
Name: | cve_CorporateAndEliminationsReportableSegmentCosts
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Integration Costs + References No definition available. + Details
Name: | cve_IntegrationCosts
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Revenues less purchased product, transportation and blending, operating expenses, production and mineral taxes plus realized gains less realized losses on risk management activities. + References No definition available. + Details
Name: | cve_OperatingMargin
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The profit (loss) from reportable segment. + References No definition available. + Details
Name: | cve_ReportableSegmentProfitLoss
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revaluation Gains (Losses) + References No definition available. + Details
Name: | cve_RevaluationGainsLosses
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Income before the deduction of royalty expense. + References No definition available. + Details
Name: | cve_RevenueFromGrossSales
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense arising from transportation services and cost of diluent used for blending. + References No definition available. + Details
Name: | cve_TransportationAndBlendingExpense
Namespace Prefix: | cve_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of depreciation expense, amortisation expense and impairment loss (reversal of impairment loss) recognised in profit or loss. [Refer: Depreciation and amortisation expense; Impairment loss (reversal of impairment loss) recognised in profit or loss] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_DepreciationAmortisationAndImpairmentLossReversalOfImpairmentLossRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of expense arising from the search for mineral resources, including minerals, oil, natural gas and similar non-regenerative resources after the entity has obtained legal rights to explore in a specific area, as well as the determination of the technical feasibility and commercial viability of extracting the mineral resource. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 6 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=6&code=ifrs-tx-2023-en-r&anchor=para_24_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ExpenseArisingFromExplorationForAndEvaluationOfMineralResources
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of costs associated with financing activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 82 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_82_b&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_FinanceCosts
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of income associated with interest and other financing activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_FinanceIncome
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_GainsLossesOnChangeInFairValueOfDerivatives
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The gains (losses) on disposals of non-current assets. [Refer: Non-current assets] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_GainsLossesOnDisposalsOfNoncurrentAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of exchange differences recognised in profit or loss that arise from foreign currency transactions, excluding those arising on financial instruments measured at fair value through profit or loss in accordance with IFRS 9. [Refer: At fair value [member]; Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 21 -IssueDate 2023-01-01 -Paragraph 52 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=21&code=ifrs-tx-2023-en-r&anchor=para_52_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 35 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_35&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_GainsLossesOnExchangeDifferencesOnTranslationRecognisedInProfitOrLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of expense relating to general and administrative activities of the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_GeneralAndAdministrativeExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate amount included in the determination of profit (loss) for the period in respect of current tax and deferred tax. [Refer: Current tax expense (income); Deferred tax expense (income)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -Subparagraph h -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23_h&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 26 -IssueDate 2023-01-01 -Paragraph 35 -Subparagraph b -Clause viii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=26&code=ifrs-tx-2023-en-r&anchor=para_35_b_viii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 79 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_79&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph c -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_c_i&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph c -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_c_ii&doctype=Standard -URIDate 2023-03-23 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B13 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B13_g&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 82 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_82_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_IncomeTaxExpenseContinuingOperations
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase (decrease) in contingent liabilities recognised in a business combination. [Refer: Contingent liabilities recognised in business combination; Business combinations [member]; Contingent liabilities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2023-01-01 -Paragraph B67 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_c&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
Name: | ifrs-full_IncreaseDecreaseInContingentLiabilitiesRecognisedInBusinessCombination
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The amount of all operating expenses. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_OperatingExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The gains (losses) that the entity does not separately disclose in the same statement or note. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_OtherGainsLosses
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total of income less expenses from continuing and discontinued operations, excluding the components of other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2023-01-01 -Paragraph 18 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=7&code=ifrs-tx-2023-en-r&anchor=para_18_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2023-01-01 -Paragraph 32 -Subparagraph a -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2023-en-r&anchor=para_32_a_ii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 1 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=1&code=ifrs-tx-2023-en-r&anchor=para_24_b&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 28 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_28_b&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23&doctype=Standard -URIDate 2023-03-23 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B10 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 17 -IssueDate 2023-01-01 -Paragraph 113 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=17&code=ifrs-tx-2023-en-r&anchor=para_113_b&doctype=Standard -URIDate 2023-03-23 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 81A -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_81A_a&doctype=Standard -URIDate 2023-03-23 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 106 -Subparagraph d -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_106_d_i&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProfitLoss
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The profit (loss) before tax expense or income. [Refer: Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2023-en-r&anchor=para_33_b_i&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 28 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_28_b&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ProfitLossBeforeTax
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of raw materials and consumables used in the production process or in the rendering of services. [Refer: Current raw materials] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_99&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RawMaterialsAndConsumablesUsed
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The income arising in the course of an entity's ordinary activities. Income is increases in assets, or decreases in liabilities, that result in increases in equity, other than those relating to contributions from holders of equity claims. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 28 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_28_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 23 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_23_a&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 32 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_32&doctype=Standard -URIDate 2023-03-23 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 5 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=5&code=ifrs-tx-2023-en-r&anchor=para_33_b_i&doctype=Standard -URIDate 2023-03-23 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 33 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_33_a&doctype=Standard -URIDate 2023-03-23 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 34 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_34&doctype=Standard -URIDate 2023-03-23 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B12 -Subparagraph b -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B12_b_v&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 8: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B10 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B10_b&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 82 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_82_a&doctype=Standard -URIDate 2023-03-23 Reference 10: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 Reference 11: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_102&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_Revenue
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The amount of expense arising from royalties. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_RoyaltyExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The entity's share of the profit (loss) of joint ventures accounted for using the equity method. [Refer: Investments accounted for using equity method; Joint ventures [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_ShareOfProfitLossOfJointVenturesAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=cve_RealisedGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialInstrumentsAxis=cve_UnrealisedGainLossMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cve_UpstreamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cve_DownstreamMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_OilSandsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_ConventionalSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_OffshoreMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_CanadianRefiningMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_USRefiningMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_CorporateAndEliminationsSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |