Earnings Per Share

9 Months Ended

Sep. 30, 2016

The following table sets forth a reconciliation of basic and diluted shares (in millions):



	Three months ended September 30,		Nine months ended September 30,
	2016	2015	2016	2015
Average common shares outstanding	125.4	124.8	125.3	124.5
Effect of dilutive securities - share-based compensation	1.3	—	1.1	—
Average shares for diluted computations	126.7	124.8	126.4	124.5

Share options, share appreciation rights and restricted share units granted under share-based compensation plans are anti-dilutive and excluded from diluted earnings per share when the hypothetical number of shares that could be repurchased under the treasury stock method exceeds the number of shares that can be exercised, or when the Company reports a net loss from continuing operations. Anti-dilutive shares, which could potentially dilute earnings per share in the future, are set forth below (in millions):



	Three months ended September 30,		Nine months ended September 30,
	2016	2015	2016	2015
Share options and appreciation rights	1.6	1.3	1.7	1.4
Restricted share units	0.7	1.2	1.3	1.7
Total potentially dilutive shares	2.3	2.5	3.0	3.1