Shares Used In Computing Net Income Per Share

9 Months Ended

Sep. 30, 2011

Shares Used In Computing Net Income Per Share [Abstract]

Shares Used In Computing Net Income Per Share

5. Shares Used in Computing Net Income Per Share

The computation of shares used in calculating basic and diluted net income per common share is as follows:

	Three Months Ended September 30,				Nine Months Ended September 30,
(In millions)	2011		2010		2011		2010
Weighted-average shares outstanding used for the calculation of net income per share—basic		141.1		149.7		143.2		151.2
Common stock equivalents		1.5		1.2		1.6		1.2
Total shares used for the calculation of net income per share—diluted		142.6		150.9		144.8		152.4

For the three months ended September 30, 2011 and 2010, stock options for 1.0 million and 2.9 million shares, respectively, were excluded from the calculation of diluted weighted-average outstanding shares because their impact was anti-dilutive. For the nine months ended September 30, 2011 and 2010, stock options for 0.9 million and 2.9 million shares, respectively, were excluded from the calculation of diluted weighted-average outstanding shares because their impact was anti-dilutive.