XML 133 R105.htm IDEA: XBRL DOCUMENT
v3.22.1

Commitments and Contingencies (Details) - CAD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
2022 |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | $ 967 |
North West Redwater Partnership service toll | 122 |
Other | 37 |
2023 |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | 1,107 |
North West Redwater Partnership service toll | 123 |
Other | 27 |
2024 |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | 914 |
North West Redwater Partnership service toll | 121 |
Other | 22 |
2025 |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | 870 |
North West Redwater Partnership service toll | 119 |
Other | 20 |
2026 |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | 816 |
North West Redwater Partnership service toll | 97 |
Other | 15 |
Thereafter |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation | 10,028 |
North West Redwater Partnership service toll | 3,671 |
Other | $ 0 |
Commitments for oil and gas transportation, period of agreement | 20 years |
North West Redwater Partnership |  |
Disclosure Of Commitments [Line Items] |  |
Percent of pro rata share of debt company has committed paying to joint venture, toll payer percent | 25.00% | 25.00%
Interest payable included in service toll | $ 1,486 |
Term of commitment to joint venture | 40 years |
Offshore vessels and equipment | 2022 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | $ 62 |
Offshore vessels and equipment | 2023 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 0 |
Offshore vessels and equipment | 2024 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 0 |
Offshore vessels and equipment | 2025 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 0 |
Offshore vessels and equipment | 2026 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 0 |
Offshore vessels and equipment | Thereafter |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 0 |
Field equipment and power | 2022 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 25 |
Field equipment and power | 2023 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 21 |
Field equipment and power | 2024 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 21 |
Field equipment and power | 2025 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 21 |
Field equipment and power | 2026 |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 21 |
Field equipment and power | Thereafter |  |
Disclosure Of Commitments [Line Items] |  |
Offshore vessels and equipment, field equipment and power | 225 |
STORM Resources Ltd |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation and processing obligation, unrecorded | $ 298 |
Painted Pony Energy Ltd |  |
Disclosure Of Commitments [Line Items] |  |
Product transportation and processing obligation, unrecorded |  | $ 2,400

X
- Definition Commitments For Oil And Gas Transportation And Processing + References No definition available. + Details
Name: | cnq_CommitmentsForOilAndGasTransportationAndProcessing
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments For Oil And Gas Transportation, Period Of Agreement + References No definition available. + Details
Name: | cnq_CommitmentsForOilAndGasTransportationPeriodOfAgreement
Namespace Prefix: | cnq_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Commitments For Service Toll + References No definition available. + Details
Name: | cnq_CommitmentsForServiceToll
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments In Relation To Joint Ventures, Interest Payable + References No definition available. + Details
Name: | cnq_CommitmentsInRelationToJointVenturesInterestPayable
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Commitments In Relation To Joint Ventures, Percentage Pro Rata Share Of Monthly Debt Cost + References No definition available. + Details
Name: | cnq_CommitmentsInRelationToJointVenturesPercentageProRataShareOfMonthlyDebtCost
Namespace Prefix: | cnq_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Commitments In Relation To Joint Ventures, Term + References No definition available. + Details
Name: | cnq_CommitmentsInRelationToJointVenturesTerm
Namespace Prefix: | cnq_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition [Line Items] for Disclosure Of Commitments [Table] + References No definition available. + Details
Name: | cnq_DisclosureOfCommitmentsLineItems
Namespace Prefix: | cnq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum Lease Payments Payable Under Non-Cancellable Lease + References No definition available. + Details
Name: | cnq_MinimumLeasePaymentsPayableUnderNonCancellableLease
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Other Commitments + References No definition available. + Details
Name: | cnq_OtherCommitments
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Product Transportation And Processing Obligation, Unrecorded + References No definition available. + Details
Name: | cnq_ProductTransportationAndProcessingObligationUnrecorded
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=cnq_NorthWestRedwaterPartnershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cnq_OffshoreVesselsAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=cnq_FieldEquipmentAndPowerMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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