Earnings per share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Number of Shares Used in the Earnings Per Share Calculations

For the year ended December 31 (in millions of Canadian dollars, except per share data)	2023		2022		2021
Net income attributable to controlling shareholders	$	3,927	$	3,517	$	2,852
Weighted-average basic shares outstanding (millions)	931.3		930.0		679.7
Dilutive effect of stock options (millions)	2.4		2.9		3.1
Weighted-average diluted shares outstanding (millions)	933.7		932.9		682.8
Earnings per share – basic	$	4.22	$	3.78	$	4.20
Earnings per share – diluted	$	4.21	$	3.77	$	4.18