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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, 2023 | Dec. 31, 2022
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Goodwill Beginning balance | $ 6,014 | $ 5,651
Total intangible assets Beginning balance | 4,505 | 4,264
Goodwill Net additions/ (disposals) |  | 255
Effect of changes in foreign exchange rates | (95) | 108
Total intangible assets Net additions/ (disposals) | 312 | 433
Goodwill Ending balance | 5,919 | 6,014
Total goodwill and intangible assets Net additions/ (disposals) | 312 | 688
Total goodwill and intangible assets Beginning balance | 10,519 | 9,915
Amortization expense | (328) | (344)
Effect of changes in foreign exchange rates - Total intangible assets | 193 | 260
Effect of changes in foreign exchange rates | (98) | 152
Total goodwill and intangible assets Ending balance | 10,310 | 10,519
Total intangible assets Ending balance | 4,391 | 4,505
Distribution networks [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 881 | 888
Total intangible assets Net additions/ (disposals) | 31 | 6
Amortization expense | (53) | (47)
Effect of changes in foreign exchange rates - Total intangible assets | (25) | 34
Total intangible assets Ending balance | 834 | 881
Customer relationships [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 643 | 687
Total intangible assets Net additions/ (disposals) | (4) |
Amortization expense | (53) | (56)
Effect of changes in foreign exchange rates - Total intangible assets | (4) | 12
Total intangible assets Ending balance | 582 | 643
Software [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 1,068 | 1,091
Total intangible assets Net additions/ (disposals) | 274 | 192
Amortization expense | (217) | (235)
Effect of changes in foreign exchange rates - Total intangible assets | (23) | 20
Total intangible assets Ending balance | 1,102 | 1,068
Other [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 52 | 49
Total intangible assets Net additions/ (disposals) | 11 | 7
Amortization expense | (5) | (6)
Effect of changes in foreign exchange rates - Total intangible assets | (10) | 2
Total intangible assets Ending balance | 48 | 52
Finite life intangible assets [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 2,644 | 2,715
Total intangible assets Net additions/ (disposals) | 312 | 205
Amortization expense | (328) | (344)
Effect of changes in foreign exchange rates - Total intangible assets | (62) | 68
Total intangible assets Ending balance | 2,566 | 2,644
Brand [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 813 | 761
Effect of changes in foreign exchange rates - Total intangible assets | (22) | 52
Total intangible assets Ending balance | 791 | 813
Fund management contracts and other [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 1,048 | 788
Total intangible assets Net additions/ (disposals) |  | 228
Effect of changes in foreign exchange rates - Total intangible assets | (14) | 32
Total intangible assets Ending balance | 1,034 | 1,048
Indefinite life intangible assets [Member] |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [Line Items] |  |
Total intangible assets Beginning balance | 1,861 | 1,549
Total intangible assets Net additions/ (disposals) |  | 228
Effect of changes in foreign exchange rates - Total intangible assets | (36) | 84
Total intangible assets Ending balance | $ 1,825 | $ 1,861

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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 2023-01-01 -Paragraph B67 -Subparagraph d -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2023-en-r&anchor=para_B67_d_ii&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated 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: Intangible assets and goodwill] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 38 -IssueDate 2023-01-01 -Paragraph 118 -Subparagraph e -Clause vii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=38&code=ifrs-tx-2023-en-r&anchor=para_118_e_vii&doctype=Standard -URIDate 2023-03-23 + Details
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