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Goodwill and Intangible Assets - Goodwill Impairment Testing (Details) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | $ 5,919 | $ 6,014
Net additions/(disposals) | 150 | 0
Effect of changes in foreign exchange rates | 206 | (95)
Goodwill at end of period | 6,275 | 5,919
Asia Insurance (excluding Japan) |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 159 | 162
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | 11 | (3)
Goodwill at end of period | 170 | 159
Japan Insurance |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 328 | 360
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | (7) | (32)
Goodwill at end of period | 321 | 328
Canada Insurance |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 1,958 | 1,960
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | 8 | (2)
Goodwill at end of period | 1,966 | 1,958
U.S. Insurance |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 350 | 360
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | 32 | (10)
Goodwill at end of period | 382 | 350
Asia WAM |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 438 | 450
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | 41 | (12)
Goodwill at end of period | 479 | 438
Canada WAM |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 1,436 | 1,436
Net additions/(disposals) | 0 | 0
Effect of changes in foreign exchange rates | 0 | 0
Goodwill at end of period | 1,436 | 1,436
U.S. WAM |  |
Disclosure of reconciliation of changes in goodwill [line items] |  |
Goodwill at beginning of period | 1,250 | 1,286
Net additions/(disposals) | 150 | 0
Effect of changes in foreign exchange rates | 121 | (36)
Goodwill at end of period | $ 1,521 | $ 1,250

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- Definition The amount of additional goodwill recognised, except goodwill included in a disposal group that, on acquisition, meets the criteria to be classified as held for sale in accordance with IFRS 5. [Refer: Goodwill; Disposal groups classified as held for sale [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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- Definition The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Total for all business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2024-01-01 -Paragraph 134 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_134_a&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2024-01-01 -Paragraph 135 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2024-en-r&anchor=para_135_a&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B -URIDate 2024-03-27 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2024-01-01 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_54_c&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The increase (decrease) in goodwill resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2024-01-01 -Paragraph B67 -Subparagraph d -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&anchor=para_B67_d_vi&doctype=Appendix&subtype=B -URIDate 2024-03-27 + Details
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