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Trade Accounts Payable and Other Liabilities - Schedule of Trade Accounts Payable and Other Liabilities (Detail) - CAD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
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Disclosure of detailed information about financial instruments [line items] |  |
Trade accounts payable and accruals | $ 1,653 | $ 1,428
Capital project accruals | 546 | 599
Payroll-related liabilities | 293 | 266
Accrued interest | 100 | 104
Commercial and government royalties | 325 | 229
Current portion of provisions (Note 23(a)) | 210 | 173
Settlement payables (Note 29(b)) | 9 | 6
Contract liabilities - consignment sales | 30 | 15
Other | 59 | 34
Trade account payable and other liabilities | 3,255 | 2,909
Sale and Purchase Contracts |  |
Disclosure of detailed information about financial instruments [line items] |  |
Settlement payables (Note 29(b)) | $ 39 | $ 61

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- Definition The amount of current interest payable. [Refer: Interest payable] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition The amount of current payables for the purchase of non-current assets. [Refer: Payables for purchase of non-current assets] + 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
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- 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
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