NET EARNINGS PER SHARE (Tables)

12 Months Ended

Dec. 31, 2017

Schedule of Basic and Diluted Earnings per Share

Calculation of Weighted Average Number of Outstanding Common Shares - Dilutive

SHARES IN THOUSANDS
	2017	2016	2015
Weighted average number of outstanding shares - basic	753,085	718,560	516,371
Dilutive potential common shares:
Stock options	2,571	2,672	2,342
Restricted stock units	582	756	381
Performance share units	428	413	524
Total effect of outstanding dilutive potential common shares	3,581	3,841	3,247
Weighted average number of outstanding common shares - dilutive	756,666	722,401	519,618

Potential Shares Not Included in the Computation of Diluted Earnings per Share

Potential Shares Not Included in the Computation of Diluted Earnings per Share

SHARES IN THOUSANDS
	2017	2016	2015
Stock options	1,351	1,462	5,016
Performance share units	799	384	155
Preference shares(1)	—	—	25,307
(1) See Note 15: Shareholders' Interest for more information.