Income (Loss) per Share

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Income (Loss) per Share

Income per Share

Basic income or loss per share is based on the weighted average number of common shares outstanding during the period. Diluted income or loss per share includes additional common shares that would have been outstanding if potential common shares with a dilutive effect had been issued.

For the three months endedMarch 31, 2013, we incurred losses from continuing operations attributable to company shareholders and accordingly excluded all potentially dilutive securities from the determination of diluted loss per share as their impact was antidilutive. Excluded from this computation are four million shares of common stock associated with awards granted under employee stock plans as well as options to purchase four million shares of common stock that were outstanding during the three months endedMarch 31, 2013.

For the three months endedMarch 31, 2012, differences between basic and diluted weighted average common shares outstanding resulted from the dilutive effect of awards granted under employee stock plans. Excluded from the computation of diluted income per share during the three months endedMarch 31, 2012 are options to purchase five million shares of common stock that were outstanding. These options were outstanding but were excluded because they were antidilutive, as the option exercise price was greater than the average market price of the common shares.