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Income Taxes - Components of Income Tax Expense (Recovery) Recognized in Other Comprehensive Income ("OCI") (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021
Major components of tax expense (income) [abstract] |  |
Current income tax expense (recovery) | $ (323) | $ (3)
Deferred income tax expense (recovery) | (863) | (61)
Total income tax expense (recovery) | $ (1,186) | $ (64)

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- Definition The amount of income tax relating to amounts recognised in other comprehensive income. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2022-03-24 -Paragraph 81 -Subparagraph ab -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_ab&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 90 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_90&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition Current tax relating to items credited charged directly to other comprehensive income. + References No definition available. + Details
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- Definition Deferred tax relating to items credited charged directly to other comprehensive income. + References No definition available. + Details
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