Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2016

Earnings Per Share [Abstract]

Number Of Shares Used In the Earnings Per Share Calculations

The number of shares used and the earnings per share calculations are reconciled as follows:

(in millions of Canadian dollars, except per share data)	2016		2015		2014
Net income	$	1,599	$	1,352	$	1,476
Weighted average basic shares outstanding (millions)	149.6		159.7		172.8
Dilutive effect of weighted average number of stock options (millions)	0.9		1.3		1.6
Weighted average diluted shares outstanding (millions)	150.5		161.0		174.4
Earnings per share – basic	$	10.69	$	8.47	$	8.54
Earnings per share – diluted	$	10.63	$	8.40	$	8.46