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Reinsurance - Schedule of Reinsurance Expenses and Benefits (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Insurance Contracts [Abstract] |  |
Recovered claims and benefits | $ 2,233 | $ 2,182
Commissions | 65 | 69
Reserve adjustments | 45 | 22
Operating expenses and other | 82 | 80
Total reinsurance (expenses) recoveries | $ 2,425 | 2,353
Loss recognized from entrance of reinsurance agreement |  | $ 66

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- Definition The gains (losses) recognised in profit or loss on the entity's purchase of reinsurance. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 4 -IssueDate 2021-01-01 -Paragraph 37 -Subparagraph b -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=4&code=ifrs-tx-2021-en-b&anchor=para_37_b_i&doctype=Standard&book=b -URIDate 2021-03-24 + Details
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