Share Capital (Tables)

12 Months Ended

Dec. 31, 2019



	2019					2018
Issued Common shares	Number of shares (thousands)		Amount			Number of shares (thousands)		Amount
Balance – beginning of year	1,201,886		$	9,323		1,222,769		$	9,109
Issued upon exercise of stock options	10,871		360			9,975		332
Previously recognized liability on stock options exercised for common shares	—		53			—		120
Purchase of common shares under Normal Course Issuer Bid	(25,900	)	(203		)	(30,858	)	(238		)
Balance – end of year	1,186,857		$	9,533		1,201,886		$	9,323

The following table summarizes information relating to stock options outstanding at December 31, 2019 and 2018:



	2019				2018
	Stock options (thousands)		Weighted average exercise price		Stock options (thousands)		Weighted average exercise price
Outstanding – beginning of year	46,685		$	37.92	56,036		$	36.67
Granted	16,314		$	34.84	4,256		$	43.75
Surrendered for cash settlement	(1,003	)	$	34.52	(392	)	$	33.46
Exercised for common shares	(10,871	)	$	33.16	(9,975	)	$	33.28
Forfeited	(3,479	)	$	37.65	(3,240	)	$	38.76
Outstanding – end of year	47,646		$	38.04	46,685		$	37.92
Exercisable – end of year	17,057		$	38.74	19,436		$	36.03

The range of exercise prices of stock options outstanding and exercisable at December 31, 2019 was as follows:



			Stock options outstanding				Stock options exercisable
Range of exercise prices			Stock options outstanding (thousands)	Weighted average remaining term (years)	Weighted average exercise price		Stock options exercisable (thousands)	Weighted average exercise price
$22.90	-	$24.99	2,361	1.03	$	22.90	1,579	$	22.90
$25.00	-	$29.99	3,524	1.04	$	28.85	2,236	$	28.85
$30.00	-	$34.99	5,174	4.97	$	32.38	536	$	32.58
$35.00	-	$39.99	16,635	3.91	$	36.85	2,263	$	37.62
$40.00	-	$44.99	16,117	2.24	$	43.60	8,939	$	43.58
$45.00	-	$46.74	3,835	3.06	$	45.20	1,504	$	45.13
			47,646	3.04	$	38.04	17,057	$	38.74