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Operating, Selling and General Expense (Details) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Operating, Selling and General Expense |  |
Employee and contract service costs | $ 8,037 | $ 7,409
Materials and equipment | 1,901 | 1,931
Commodities | 2,196 | 1,523
Travel, marketing and other | 673 | 503
Operating, Selling and General Expense | $ 12,807 | 11,366
Reclassification adjustment |  |
Operating, Selling and General Expense |  |
Employee and contract service costs |  | (564)
Materials and equipment |  | 564
Commodities |  | 23
Materials and Travel, marketing and other |  | $ (23)

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- Definition The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 102 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_102&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_99&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 104 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_104&doctype=Standard -URIDate 2022-03-24 + Details
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