Earnings Per Share ("EPS")

9 Months Ended

Sep. 30, 2012

Earnings Per Share ("EPS")

5. Earnings Per Share (“EPS”)

Basic EPS is calculated based on income available to common stockholders and the weighted-average number of shares outstanding during the reported period. Diluted EPS reflects additional dilution from potential common stock issuable upon the exercise of outstanding stock options. The following table sets forth a reconciliation of the weighted average number of common shares outstanding to the weighted average number of shares outstanding on a diluted basis:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
(In millions)	2012		2011		2012		2011
Weighted average common shares outstanding - basic		139.5		143.7		140.4		143.3
Dilutive effect of stock options		2.7		2.6		2.7		2.6
Weighted average common shares outstanding - diluted		142.2		146.3		143.1		145.9
Antidilutive stock options outstanding		0.9		0.6		1.5		1.1