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EARNINGS PER COMMON SHARE (Details) - CAD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
EARNINGS PER COMMON SHARE
Net earnings	$ 2,899	$ 3,293
Weighted average number of common shares	1,559.0	1,623.0
Dilutive Securities:
Effect of share options	2.0	6.0
Weighted average number of diluted common shares	1,561.0	1,629.0
Basic earnings per share	$ 1.86	$ 2.03
Diluted earnings per share	$ 1.86	$ 2.02

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The weighted average number of ordinary shares outstanding plus the weighted average number of ordinary shares that would be issued on the conversion of all the dilutive potential ordinary shares into ordinary shares. [Refer: Ordinary shares [member]; Weighted average [member]]

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