XML 106 R71.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Decommissioning Liabilities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
Provision for decommissioning, restoration and rehabilitation costs [abstract] |
Summary of Decommissioning Provision |
| 2021 |  |  | 2020 |
Decommissioning Liabilities, Beginning of Year |  | 1,248 |  |  |  | 1,235 |
Acquisitions (Note 5) |  | 2,856 |  |  |  | — |
Liabilities Incurred |  | 30 |  |  |  | 14 |
Liabilities Settled |  | (144) |  |  |  | (42) |
Liabilities Disposed |  | (140) |  |  |  | (2) |
Transfers to Liabilities Related to Assets Held for Sale (Note 16) |  | (128) |  |  |  | — |
Change in Estimated Future Cash Flows |  | (472) |  |  |  | 13 |
Change in Discount Rates |  | 450 |  |  |  | (28) |
Unwinding of Discount on Decommissioning Liabilities (Note 7) |  | 199 |  |  |  | 57 |
Foreign Currency Translation |  | 7 |  |  |  | 1 |
Decommissioning Liabilities, End of Year |  | 3,906 |  |  |  | 1,248 |
Description Of Major Assumptions Made Concerning Future Events Other Provisions Explanatory | Changes to the credit-adjusted risk-free rate or the inflation rate would have the following impact on the decommissioning liabilities:
| Sensitivity |  | 2021 |  |  | 2020 |
As at December 31, | Range |  | Increase |  |  | Decrease |  |  | Increase |  |  | Decrease |
Credit-Adjusted Risk Free Rate | ± one percent |  |  | (623) |  |  |  | 875 |  |  |  | (228) |  |  |  | 313 |
Inflation Rate | ± one percent |  |  | 873 |  |  |  | (625) |  |  |  | 321 |  |  |  | (235) |

X
- Definition Description of major assumptions made concerning future events other provisions. + References No definition available. + Details
Name: | cve_DescriptionOfMajorAssumptionsMadeConcerningFutureEventsOtherProvisionsExplanatoryTableTextBlock
Namespace Prefix: | cve_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of other provisions. [Refer: Other provisions] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 37 -IssueDate 2021-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=37&code=ifrs-tx-2021-en-r&anchor=para_84&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfOtherProvisionsExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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