XML 95 R70.htm IDEA: XBRL DOCUMENT
v3.22.2

Update to Significant Accounting Policies, Critical Accounting Judgements and Key Sources of Estimation Uncertainty - Schedule of Revision (Details) - CAD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Mar. 31, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales | $ 20,747 |  | $ 11,170 | [1] | $ 38,130 | $ 20,836 | [1]
Purchased Product | 9,396 | $ 7,482 | 5,255 | [1] | 16,878 | 9,458 | [1]
Transportation and Blending | 3,048 | 2,975 | 1,854 | [1] | 6,023 | 3,673 | [1]
Gross Sales Less Purchased Product And Transportation And Blending |  | 10,457 | 4,061 |  |  | 7,705 |
Oil Sands |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales |  |  | 5,075 |  |  | 9,993 |
Purchased Product |  | 1,212 | 430 |  |  | 1,119 |
Transportation and Blending |  | 3,156 | 1,984 |  |  | 3,934 |
Gross Sales Less Purchased Product And Transportation And Blending |  | 4,368 | 2,661 |  |  | 4,940 |
Corporate and Eliminations |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales | (1,782) |  | (1,276) |  | (3,543) | (2,425) |
Purchased Product | (1,111) | (1,282) | (964) |  | (2,393) | (1,799) |
Transportation and Blending | $ (188) | (221) | (152) |  | $ (409) | (305) |
Gross Sales Less Purchased Product And Transportation And Blending |  | (1,503) | (1,116) |  |  | (2,104) |
Previously Reported |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales |  |  | 11,110 |  |  | 20,633 |
Purchased Product |  | 7,538 | 5,253 |  |  | 9,347 |
Transportation and Blending |  | 2,919 | 1,796 |  |  | 3,581 |
Gross Sales Less Purchased Product And Transportation And Blending |  | 10,457 | 4,061 |  |  | 7,705 |
Previously Reported | Oil Sands |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales |  |  | 5,015 |  |  | 9,790 |
Purchased Product |  | 1,483 | 574 |  |  | 1,292 |
Transportation and Blending |  | 2,885 | 1,780 |  |  | 3,558 |
Gross Sales Less Purchased Product And Transportation And Blending |  | 4,368 | 2,661 |  |  | 4,940 |
Previously Reported | Corporate and Eliminations |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Purchased Product |  | (1,497) | (1,110) |  |  | (2,083) |
Transportation and Blending |  | (6) | (6) |  |  | (21) |
Gross Sales Less Purchased Product And Transportation And Blending |  | (1,503) | (1,116) |  |  | (2,104) |
Revisions |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales |  |  | 60 |  |  | 203 |
Purchased Product |  | (56) | 2 |  |  | 111 |
Transportation and Blending |  | 56 | 58 |  |  | 92 |
Gross Sales Less Purchased Product And Transportation And Blending |  | 0 | 0 |  |  | 0 |
Revisions | Oil Sands |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Gross Sales |  |  | 60 |  |  | 203 |
Purchased Product |  | (271) | (144) |  |  | (173) |
Transportation and Blending |  | 271 | 204 |  |  | 376 |
Gross Sales Less Purchased Product And Transportation And Blending |  | 0 | 0 |  |  | 0 |
Revisions | Corporate and Eliminations |  |  |  |  |  |  |
Disclosure of changes in accounting estimates [line items] |  |  |  |  |  |  |
Purchased Product |  | 215 | 146 |  |  | 284 |
Transportation and Blending |  | (215) | (146) |  |  | (284) |
Gross Sales Less Purchased Product And Transportation And Blending |  | $ 0 | $ 0 |  |  | $ 0 |
[1] | See Note 3 for revisions to prior period results.

X
- Definition Gross Sales Less Purchased Product And Transportation And Blending + References No definition available. + Details
Name: | cve_GrossSalesLessPurchasedProductAndTransportationAndBlending
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 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_DisclosureOfChangesInAccountingEstimatesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
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 2021-01-01 -Paragraph 102 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_102&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 99 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_99&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_RawMaterialsAndConsumablesUsed
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_SegmentsAxis=cve_OilSandsSegmentMember
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: |

X
- Details
Name: | srt_RestatementAxis=srt_ScenarioPreviouslyReportedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RestatementAxis=srt_RestatementAdjustmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |