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Commitments and Contingencies - Schedule of Pledged Assets (Detail) - CAD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
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Debt securities [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | $ 4,134 | $ 3,818
Debt securities [Member] | Derivatives [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 3,655 | 3,189
Debt securities [Member] | Regulatory requirements [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 412 | 398
Debt securities [Member] | Repurchase agreements [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 64 | 228
Debt securities [Member] | Other [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 3 | 3
Other [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 907 | 815
Other [Member] | Derivatives [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 102 | 44
Other [Member] | Regulatory requirements [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 84 | 86
Other [Member] | Real estate [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount |  | 2
Other [Member] | Non-registered retirement plans in trust [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | 420 | 412
Other [Member] | Other [Member] |  |
Disclosure Of Pledged Assets [line items] |  |
Pledged amount | $ 301 | $ 271

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- Definition The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Contingent liabilities [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2018-01-01 -Paragraph 14 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=7&date=2018-03-01&anchor=para_14_a&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition Pledged assets. + References No definition available. + Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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- Details
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