Net Income per Share (Notes)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Net Income Per Share [Text Block]

Net Income per Share

The Company computed basic and diluted net income per share as follows (in millions, except per share amounts):

	Three Months Ended March 31,
	2013		2012
Numerator:
Net income	$	91.0	$	16.3
Denominator:
Weighted-average shares used to compute basic net income per share	504.7		527.2
Dilutive effect of employee stock awards	8.0		6.5
Weighted-average shares used to compute diluted net income per share	512.7		533.7
Net income per share:
Basic	$	0.18	$	0.03
Diluted	$	0.18	$	0.03

Basic net income per share is computed using net income available to common stockholders and the weighted-average number of common shares outstanding for the period. Diluted net income per share is computed using net income available to common stockholders and the weighted-average number of common shares outstanding plus potentially dilutive common shares outstanding during the period. Dilutive potential common shares consist of common shares issuable upon exercise of stock options, ESPP issuances, and vesting of RSUs, RSAs, and PSAs.

The Company excludes both outstanding stock options with exercise prices that are greater than the average market price and RSUs and RSAs with grant date fair market value that are greater than the average market price from the calculation of diluted net income per share because their effect would be anti-dilutive. The Company includes the common shares underlying PSAs in the calculation of diluted net income per share when they become contingently issuable and excludes such shares when they are not contingently issuable. Potentially dilutive common shares of approximately 24.7 million and 30.6 million shares were outstanding but were not included in the computation of diluted earnings per share for the three months ended March 31, 2013 and March 31, 2012, respectively.