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Revenue from Service Contracts - Summary of Revenue from Service Contracts by Service Lines and Reporting Segments (Detail) - CAD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | $ 6,746 | $ 6,186
Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 303 | 305
Asia Canada US Africa Corporate And Other [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 37 | (205)
Asia Canada US Africa Corporate And Other [Member] | Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 303 | 305
Other revenue [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 6,617 | 6,447
Other revenue [member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 2,886 | 2,764
Other revenue [member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 2,835 | 2,684
Other revenue [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 896 | 999
Other revenue [member] | Asia Canada US Africa Corporate And Other [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | (89) | 42
Other revenue [member] | Asia Canada US Africa Corporate And Other [Member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | (412) | (315)
Other revenue [member] | Asia Canada US Africa Corporate And Other [Member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 269 | 268
Other revenue [member] | Asia Canada US Africa Corporate And Other [Member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 54 | 89
Revenue from non-service lines [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 129 | (261)
Revenue from non-service lines [Member] | Asia Canada US Africa Corporate And Other [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 126 | (247)
Global wealth and asset management [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 6,709 | 6,391
Global wealth and asset management [member] | Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 0 | 0
Global wealth and asset management [member] | Other revenue [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 6,706 | 6,405
Global wealth and asset management [member] | Other revenue [member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 3,298 | 3,079
Global wealth and asset management [member] | Other revenue [member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 2,566 | 2,416
Global wealth and asset management [member] | Other revenue [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 842 | 910
Global wealth and asset management [member] | Revenue from non-service lines [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | $ 3 | $ (14)

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- Definition The amount of revenue from contracts with customers. A customer is a party that has contracted with an entity to obtain goods or services that are an output of the entity’s ordinary activities in exchange for consideration. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_114&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2023-01-01 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2023-en-r&anchor=para_113_a&doctype=Standard -URIDate 2023-03-23 + Details
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