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Share-Based Payment Plans - Stock Options (Details) - Exercise price range one shares in Millions	12 Months Ended
	Dec. 31, 2021 shares CAD ($)
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Number of options (in shares) | shares	3.2
Weighted average remaining contractual life (in years)	4 years 2 months 12 days
Weighted average exercise price (in dollars per share)	$ 7.54
Minimum
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise price of outstanding share options (in dollars per share)	5.00
Maximum
Disclosure of number and weighted average remaining contractual life of outstanding share options [line items]
Exercise price of outstanding share options (in dollars per share)	$ 9.00

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The exercise price of outstanding share options.

+ References

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The number of share options outstanding in a share-based payment arrangement.

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