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Segmented Information - Schedule of Non-Current Assets and Gross Revenue by Geographical Areas (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Disclosure of geographical areas [line items]
Non-current assets	$ 2,542.9	$ 2,716.4
Gross revenue	4,730.1	4,827.3
Canada
Disclosure of geographical areas [line items]
Non-current assets	646.0	760.5
Gross revenue	1,238.5	1,283.1
United States
Disclosure of geographical areas [line items]
Non-current assets	1,430.0	1,486.2
Gross revenue	2,655.2	2,688.1
United Kingdom
Disclosure of geographical areas [line items]
Non-current assets	142.4	143.3
Gross revenue	321.5	279.1
Other global geographies
Disclosure of geographical areas [line items]
Non-current assets	324.5	326.4
Gross revenue	$ 514.9	$ 577.0

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The amount of non-current assets other than financial instruments, deferred tax assets, post-employment benefit assets and rights arising under insurance contracts. [Refer: Deferred tax assets; Financial instruments, class [member]; Non-current assets; Types of insurance contracts [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 8
-IssueDate 2020-01-01
-Paragraph 33
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_33_b&doctype=Standard
-URIDate 2020-01-01

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- Definition

Revenue from continuing operations.

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