XML 132 R104.htm IDEA: XBRL DOCUMENT
v3.22.1

Financial Instruments - Maturity Dates for Financial Liabilities (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of detailed information about financial instruments [line items] |  |  |
Accounts payable | $ 803 | $ 667 |
Accrued liabilities | 3,064 | 2,346 |
Long-term debt | 14,694 | 21,453 |
Other long-term liabilities | 8,384 | 7,564 |
Interest and other financing expense | 743 | 828 | $ 912
Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 14,781 | $ 21,560 |
Less than 1 year | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 1,000 |  |
1 to less than 2 years | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 2,906 |  |
Thereafter | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 7,624 |  |
Liquidity risk | Less than 1 year |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Accounts payable | 803 |  |
Accrued liabilities | 3,064 |  |
Other long-term liabilities | 282 |  |
Lease payments included In liablities | 185 |  |
Liquidity risk | Less than 1 year | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 1,000 |  |
Interest and other financing expense | 650 |  |
Liquidity risk | 1 to less than 2 years |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Accounts payable | 0 |  |
Accrued liabilities | 0 |  |
Other long-term liabilities | 181 |  |
Lease payments included In liablities | 149 |  |
Liquidity risk | 1 to less than 2 years | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 2,906 |  |
Interest and other financing expense | 583 |  |
Liquidity risk | 2 to less than 5 years |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Accounts payable | 0 |  |
Accrued liabilities | 0 |  |
Other long-term liabilities | 430 |  |
Lease payments included In liablities | 426 |  |
Liquidity risk | 2 to less than 5 years | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 3,251 |  |
Interest and other financing expense | 1,503 |  |
Liquidity risk | Thereafter |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Accounts payable | 0 |  |
Accrued liabilities | 0 |  |
Other long-term liabilities | 824 |  |
Lease payments included In liablities | 824 |  |
Liquidity risk | Thereafter | Gross carrying amount |  |  |
Disclosure of detailed information about financial instruments [line items] |  |  |
Long-term debt | 7,624 |  |
Interest and other financing expense | $ 3,971 |  |

X
- Definition Lease Payments Included In Liablities + References No definition available. + Details
Name: | cnq_LeasePaymentsIncludedInLiablities
Namespace Prefix: | cnq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of accruals classified as current. [Refer: Accruals] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AccrualsClassifiedAsCurrent
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The amount of outstanding funds that the entity is obligated to repay. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_Borrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
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 2021-01-01 -Paragraph 82 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_82_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_FinanceCosts
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The amount of non-current liabilities that the entity does not separately disclose in the same statement or note. [Refer: Non-current liabilities] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_55&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_OtherNoncurrentLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The current amount of payment due to suppliers for goods and services used in entity's business. [Refer: Current liabilities; Trade payables] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 70 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_70&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_TradeAndOtherCurrentPayablesToTradeSuppliers
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_CarryingAmountAccumulatedDepreciationAmortisationAndImpairmentAndGrossCarryingAmountAxis=ifrs-full_GrossCarryingAmountMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfRisksAxis=ifrs-full_LiquidityRiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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