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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
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | $ 9,164 | $ 11,132
Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 305 | 298
Asia [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 1,458 | 1,696
Asia [member] | Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 35 | 37
Canada [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 1,426 | 1,336
Canada [member] | Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 136 | 126
U.S. [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 458 | 1,824
U.S. [member] | Real estate management services [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 126 | 128
Other revenue [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 8,415 | 8,701
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 | 3,750 | 3,897
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 | 3,579 | 3,723
Other revenue [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 1,086 | 1,081
Other revenue [member] | Asia [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 669 | 755
Other revenue [member] | Asia [member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 234 | 217
Other revenue [member] | Asia [member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 292 | 287
Other revenue [member] | Asia [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 143 | 251
Other revenue [member] | Canada [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 1,151 | 1,168
Other revenue [member] | Canada [member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 242 | 230
Other revenue [member] | Canada [member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 866 | 918
Other revenue [member] | Canada [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 43 | 20
Other revenue [member] | U.S. [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 534 | 576
Other revenue [member] | U.S. [member] | Investment management and other related fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 445 | 499
Other revenue [member] | U.S. [member] | Transaction processing, administration, and service fees [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 13 | 12
Other revenue [member] | U.S. [member] | Distribution fees and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 76 | 65
Revenue from non-service lines [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 749 | 2,431
Revenue from non-service lines [Member] | Asia [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 789 | 941
Revenue from non-service lines [Member] | Canada [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 275 | 168
Revenue from non-service lines [Member] | U.S. [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | (76) | 1,248
Global wealth and asset management [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | 6,350 | 6,513
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 |
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 | 6,363 | 6,514
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 | 3,079 | 3,198
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 | 2,416 | 2,517
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 | 868 | 799
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 | (13) | (1)
Corporate and other [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | (528) | (237)
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 | 8 | 7
Corporate and other [member] | Other revenue [member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | (302) | (312)
Corporate and other [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 | (250) | (247)
Corporate and other [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 | (8) | (11)
Corporate and other [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 | (44) | (54)
Corporate and other [member] | Revenue from non-service lines [Member] |  |
Disclosure of disaggregation of revenue from contracts with customers [line items] |  |
Revenue from contracts with customers | $ (226) | $ 75

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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 2022-03-24 -Paragraph 114 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_114&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 15 -IssueDate 2022-03-24 -Paragraph 113 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2022-en-r&anchor=para_113_a&doctype=Standard -URIDate 2022-03-24 + Details
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