Basic earnings (loss) per common share (EPS) is computed by dividing net income (loss) attributable to common stock by the weighted-average number of common shares outstanding for the period. Diluted EPS reflects the potential dilution of common stock equivalent shares that could occur if securities or other contracts to issue common stock were exercised or converted into common stock.

Our dilutive common stock equivalent shares consist of stock options and other stock-based compensation awards. The following table presents stock options that were not dilutive and were excluded from the computation of diluted EPS in each period, as well as the dilutive common stock equivalent shares:

	Quarter Ended September 30,				Nine Months Ended September 30,

	2011		2010		2011		2010

	(In millions)
Non-dilutive stock options		4.1		5.8		4.2		5.5
Dilutive common stock equivalent shares		2.0		1.7		1.7		1.7

As a result of the Company incurring a loss for the quarter and nine months ended September 30, 2010, dilutive common stock equivalent shares were not included in calculating diluted EPS for these periods.