XML 135 R107.htm IDEA: XBRL DOCUMENT
v3.22.1

Supplemental Disclosure of Cash Flow Information - Liabilities Arising From Financing Activities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | $ 23,115 | $ 22,592 |
Changes from financing cash flows: |  |  |
Issue (repayment) of long-term debt | (6,779) | 719 |
Settlement of long-term debt acquired | (183) | (397) | $ 0
Proceeds on settlement of cross currency swaps | 0 | 166 | 0
Payment of lease liabilities | (209) | (225) | (237)
Non-cash changes: |  |  |
Lease additions | 88 | 148 |
Changes in foreign exchange and fair value | (56) | (285) |
Liabilities arising from financing activities, ending balance | 16,159 | 23,115 | 22,592
Long-term debt |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | 21,453 | 20,982 |
Changes from financing cash flows: |  |  |
Issue (repayment) of long-term debt | (6,779) | 719 |
Non-cash changes: |  |  |
Changes in foreign exchange and fair value | 20 | (248) |
Liabilities arising from financing activities, ending balance | 14,694 | 21,453 | 20,982
Cash flow hedges on US dollar debt securities |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | (28) | (199) |
Changes from financing cash flows: |  |  |
Proceeds on settlement of cross currency swaps |  | 166 |
Non-cash changes: |  |  |
Changes in foreign exchange and fair value | (91) | 5 |
Liabilities arising from financing activities, ending balance | (119) | (28) | (199)
Lease liabilities |  |  |
Disclosure of reconciliation of liabilities arising from financing activities [line items] |  |  |
Liabilities arising from financing activities, beginning balance | 1,690 | 1,809 |
Changes from financing cash flows: |  |  |
Payment of lease liabilities | (209) | (225) |
Non-cash changes: |  |  |
Lease additions | 88 | 148 |
Changes in foreign exchange and fair value | 15 | (42) |
Liabilities arising from financing activities, ending balance | 1,584 | 1,690 | $ 1,809
Painted Pony Energy Ltd |  |  |
Changes from financing cash flows: |  |  |
Settlement of long-term debt acquired |  | (397) |
Non-cash changes: |  |  |
Assumption of long-term debt |  | 397 |
Painted Pony Energy Ltd | Long-term debt |  |  |
Changes from financing cash flows: |  |  |
Settlement of long-term debt acquired |  | (397) |
Non-cash changes: |  |  |
Assumption of long-term debt |  | $ 397 |
STORM Resources Ltd |  |  |
Changes from financing cash flows: |  |  |
Settlement of long-term debt acquired | (183) |  |
Non-cash changes: |  |  |
Assumption of long-term debt | 183 |  |
STORM Resources Ltd | Long-term debt |  |  |
Changes from financing cash flows: |  |  |
Settlement of long-term debt acquired | (183) |  |
Non-cash changes: |  |  |
Assumption of long-term debt | $ 183 |  |

X
- Definition Increase (Decrease) Through Financing Cash Flows, Proceeds (Payments) from Long-Term Borrowings, Liabilities Arising From Financing Activities + References No definition available. + Details
Name: | cnq_IncreaseDecreaseThroughFinancingCashFlowsProceedsPaymentsfromLongTermBorrowingsLiabilitiesArisingFromFinancingActivities
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Non-Cash Changes + References No definition available. + Details
Name: | cnq_NonCashChangesAbstract
Namespace Prefix: | cnq_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Proceeds From Settlement Of Cross Currency Swaps, Classified As Financing Activities + References No definition available. + Details
Name: | cnq_ProceedsFromSettlementOfCrossCurrencySwapsClassifiedAsFinancingActivities
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition The increase (decrease) in liabilities arising from financing activities resulting from obtaining or losing control of subsidiaries or other businesses. [Refer: Liabilities arising from financing activities; Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_IncreaseDecreaseThroughObtainingOrLosingControlOfSubsidiariesOrOtherBusinessesLiabilitiesArisingFromFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase (decrease) in liabilities arising from financing activities resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_IncreaseDecreaseThroughOtherChangesLiabilitiesArisingFromFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The increase in liabilities arising from financing activities resulting from new leases. [Refer: Liabilities arising from financing activities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Section A Statement of cash flows for an entity other than a financial institution -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&doctype=Illustrative%20Examples&dita_xref=IAS07_IE_A__IAS07_IE_A_TI -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44B -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44B&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_IncreaseThroughNewLeasesLiabilitiesArisingFromFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of liabilities for which cash flows were, or future cash flows will be, classified in the statement of cash flows as cash flows from financing activities. [Refer: Cash flows from (used in) financing activities; Liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 44D -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_44D&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_LiabilitiesArisingFromFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow for payment of lease liabilities, classified as financing activities. [Refer: Lease liabilities] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_PaymentsOfLeaseLiabilitiesClassifiedAsFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash outflow to settle borrowings, classified as financing activities. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 7 -IssueDate 2021-01-01 -Paragraph 17 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2021-en-r&anchor=para_17_d&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_RepaymentsOfBorrowingsClassifiedAsFinancingActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis=ifrs-full_AssetsHeldToHedgeLiabilitiesArisingFromFinancingActivitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_LiabilitiesArisingFromFinancingActivitiesAxis=ifrs-full_LeaseLiabilitiesMember
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: |

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