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v3.25.3

Financial Instruments - Additional Information (Details) - CAD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
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Disclosure of detailed information about financial instruments [Line Items] |  |
Long-term debt | $ 7,156 | $ 7,534
Level 2 of fair value hierarchy |  |
Disclosure of detailed information about financial instruments [Line Items] |  |
Debt, fair value | $ 6,700 | $ 6,900

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- Definition Fair value debt carried at amortized cost. + References No definition available. + Details
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Balance Type: | credit
Period Type: | instant

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- Definition The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard -URIDate 2024-03-27 + Details
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Balance Type: | credit
Period Type: | instant

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- 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
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- Details
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