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Goodwill and Intangible Assets - Summary of Impairment Testing of Goodwill (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | $ 5,651 | $ 5,714
Goodwill Additions/ disposals | 255 | (5)
Effect of changes in foreign exchange rates | 108 | (58)
Goodwill Ending balance | 6,014 | 5,651
Asia Insurance, excluding Japan [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 152 | 159
Goodwill Additions/ disposals |  | (5)
Effect of changes in foreign exchange rates | 10 | (2)
Goodwill Ending balance | 162 | 152
Japan insurance [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 386 | 433
Effect of changes in foreign exchange rates | (26) | (47)
Goodwill Ending balance | 360 | 386
Canadian insurance [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 1,955 | 1,955
Effect of changes in foreign exchange rates | 5 |
Goodwill Ending balance | 1,960 | 1,955
US insurance [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 336 | 338
Effect of changes in foreign exchange rates | 24 | (2)
Goodwill Ending balance | 360 | 336
Asia wealth and asset management [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 183 | 185
Goodwill Additions/ disposals | 255 |
Effect of changes in foreign exchange rates | 12 | (2)
Goodwill Ending balance | 450 | 183
Canada wealth and asset management [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 1,436 | 1,436
Effect of changes in foreign exchange rates | 0 |
Goodwill Ending balance | 1,436 | 1,436
US wealth and asset management [member] |  |
Disclosure of reconciliation of changes in goodwill [Line items] |  |
Goodwill Beginning balance | 1,203 | 1,208
Effect of changes in foreign exchange rates | 83 | (5)
Goodwill Ending balance | $ 1,286 | $ 1,203

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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 2022-03-24 -Paragraph B67 -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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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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- 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: Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Paragraph 134 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_134_a&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2022-03-24 -Paragraph 135 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2022-en-r&anchor=para_135_a&doctype=Standard -URIDate 2022-03-24 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2022-03-24 -Paragraph B67 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B -URIDate 2022-03-24 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 54 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_54_c&doctype=Standard -URIDate 2022-03-24 + 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 2022-03-24 -Paragraph B67 -Subparagraph d -Clause vi -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2022-en-r&anchor=para_B67_d_vi&doctype=Appendix&subtype=B -URIDate 2022-03-24 + Details
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