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Employee Costs from Continuing Operations - Schedule of Employee Benefits Cost (Details) - CAD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Analysis of income and expense [abstract]
Wages, salaries, and benefits	$ 2,670.3	$ 2,629.9
Pension costs	79.3	75.0
Share-based compensation	16.4	18.1
Total employee costs	2,766.0	2,723.0
Direct labor	1,754.0	1,702.9
Indirect labor	$ 1,012.0	$ 1,020.1

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The expense of all forms of consideration given by an entity in exchange for a service rendered by employees or for the termination of employment.

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The amount of expense from share-based payment transactions with employees.

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The amount of expense from employee benefits (other than termination benefits) that are expected to be settled wholly within twelve months after the end of the annual reporting period in which the employees render the related services.

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Direct labor costs.

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Employee pension costs.

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Indirect labor costs.

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