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Inventories (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of Inventories [Line Items] |  |
Crude oil | $ 2,127 | $ 2,224
Refined products | 2,244 | 2,014
Materials, supplies and merchandise | 994 | 834
Reclassified to assets held for sale (note 33) |  | (14)
Total current inventories | 5,365 | 5,058
Crude oil held for trading purpose | 113 | 131
Product inventory expensed | $ 18,200 | 21,700
Reclassification |  |
Disclosure of Inventories [Line Items] |  |
Crude oil |  | (149)
Materials, supplies and merchandise |  | $ 149

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- Definition The amount of inventories recognised as an expense during the period. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 36 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_36_d&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A classification of current inventory representing the amount of unrefined, unprocessed oil. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_37&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A classification of current inventory representing the amount of materials and supplies to be consumed in a production process or while rendering services. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_37&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A classification of current inventory representing the amount of products derived from crude oil and natural gas. [Refer: Current crude oil; Current natural gas] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 37 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_37&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of current inventories. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2023-01-01 -Paragraph 36 -Subparagraph b -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=2&code=ifrs-tx-2023-en-r&anchor=para_36_b&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph g -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_g&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 68 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_68&doctype=Standard -URIDate 2023-03-23 + Details
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