Earnings per share (Tables)

12 Months Ended

Dec. 31, 2024

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)	2024		2023		2022
Net income attributable to controlling shareholders	$	3,718	$	3,927	$	3,517
Weighted-average basic shares outstanding (millions)	933.0		931.3		930.0
Dilutive effect of stock options (millions)	1.6		2.4		2.9
Weighted-average diluted shares outstanding (millions)	934.6		933.7		932.9
Earnings per share - basic	$	3.98	$	4.22	$	3.78
Earnings per share - diluted	$	3.98	$	4.21	$	3.77