Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Summary of Information Related to Common Share Balances

The following table summarizes information related to Common Share balances as at December 31:

(number of shares in millions)	2019		2018		2017
Share capital, January 1	140.5		144.9		146.3
CP Common Shares repurchased	(3.8	)	(4.6	)	(1.9	)
Shares issued under stock option plan	0.3		0.2		0.5
Share capital, December 31	137.0		140.5		144.9

Activities Under the Share Repurchase Programs

The following table provides the activities under the share repurchase programs for each of the years ended December 31:

	2019		2018		2017
Number of Common Shares repurchased(1)	3,794,149		4,683,162		1,888,100
Weighted-average price per share(2)	$	300.65	$	240.68	$	201.53
Amount of repurchase (in millions)(2)	$	1,141	$	1,127	$	381

⁽¹⁾ Includes shares repurchased but not yet cancelled at year end.

⁽²⁾ Includes brokerage fees.