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Goodwill and Intangible Assets - Summary of Carrying Amounts of Goodwill and Intangible Assets (Detail) - CAD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Goodwill Beginning balance | $ 5,651 | $ 5,714
Total intangible assets Beginning balance | 4,264 | 4,215
Goodwill Net additions/ (disposals) | 255 | (5)
Total intangible assets Net additions/ (disposals) | 433 | 326
Effect of changes in foreign exchange rates | 108 | (58)
Goodwill Ending balance | 6,014 | 5,651
Total goodwill and intangible assets Net additions/ (disposals) | 688 | 321
Total goodwill and intangible assets Beginning balance | 9,915 | 9,929
Effect of changes in foreign exchange rates | 152 | (31)
Amortization expense | 344 | 246
Effect of changes in foreign exchange rates - Total intangible assets | 260 | (89)
Total goodwill and intangible assets Ending balance | 10,519 | 9,915
Total intangible assets Ending balance | 4,505 | 4,264
Distribution networks [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 888 | 806
Total intangible assets Net additions/ (disposals) | 6 | 131
Amortization expense | 47 | 44
Effect of changes in foreign exchange rates - Total intangible assets | 34 | (5)
Total intangible assets Ending balance | 881 | 888
Customer relationships [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 687 | 738
Total intangible assets Net additions/ (disposals) |  | (2)
Amortization expense | 56 | 48
Effect of changes in foreign exchange rates - Total intangible assets | 12 | (1)
Total intangible assets Ending balance | 643 | 687
Software [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 1,091 | 1,059
Total intangible assets Net additions/ (disposals) | 192 | 198
Amortization expense | 235 | 148
Effect of changes in foreign exchange rates - Total intangible assets | 20 | (18)
Total intangible assets Ending balance | 1,068 | 1,091
Other [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 49 | 52
Total intangible assets Net additions/ (disposals) | 7 | 2
Amortization expense | 6 | 6
Effect of changes in foreign exchange rates - Total intangible assets | 2 | 1
Total intangible assets Ending balance | 52 | 49
Finite life intangible assets [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 2,715 | 2,655
Total intangible assets Net additions/ (disposals) | 205 | 329
Amortization expense | 344 | 246
Effect of changes in foreign exchange rates - Total intangible assets | 68 | (23)
Total intangible assets Ending balance | 2,644 | 2,715
Brand [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 761 | 764
Effect of changes in foreign exchange rates - Total intangible assets | 52 | (3)
Total intangible assets Ending balance | 813 | 761
Fund management contracts and other [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 788 | 796
Total intangible assets Net additions/ (disposals) | 228 | (3)
Effect of changes in foreign exchange rates - Total intangible assets | 32 | (5)
Total intangible assets Ending balance | 1,048 | 788
Indefinite life intangible assets [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 1,549 | 1,560
Total intangible assets Net additions/ (disposals) | 228 | (3)
Effect of changes in foreign exchange rates - Total intangible assets | 84 | (8)
Total intangible assets Ending balance | $ 1,861 | $ 1,549

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- Definition The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 118 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e_i&doctype=Standard -URIDate 2022-03-24 + Details
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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 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 amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 38 -IssueDate 2022-03-24 -Paragraph 118 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2022-en-r&anchor=para_118_e&doctype=Standard -URIDate 2022-03-24 Reference 2: 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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