Earnings per share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Number Of Shares Used In the Earnings Per Share Calculations

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

(in millions of Canadian dollars, except per share data)	2021		2020		2019
Net income	$	2,852	$	2,444	$	2,440
Weighted-average basic shares outstanding (millions)	679.7		677.2		693.8
Dilutive effect of stock options (millions)	3.1		2.7		2.5
Weighted-average diluted shares outstanding (millions)	682.8		679.9		696.3
Earnings per share – basic	$	4.20	$	3.61	$	3.52
Earnings per share – diluted	$	4.18	$	3.59	$	3.50