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Other Liabilities - Schedule of Borrowings (Details) - CAD ($) $ in Millions | Dec. 31, 2020 | Dec. 31, 2019
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Disclosure of detailed information about borrowings [line items] |  |
Borrowed funds | $ 401 | $ 320
Encumbrances on real estate, Maturing in 2033 |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowed funds | 292 | 320
Encumbrances on real estate in US Dollars, Maturing in 2020 |  |
Disclosure of detailed information about borrowings [line items] |  |
Borrowed funds | $ 109 | $ 0

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- Definition The amount of borrowings that the entity does not separately disclose in the same statement or note. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_112_c&doctype=Standard -URIDate 2019-03-27 + Details
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