XML 60 R72.htm IDEA: XBRL DOCUMENT v2.4.0.8
STOCKHOLDERS' EQUITY 8 (Details) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Employee Stock Purchase Plan      
Purchase price of the entity's common stock expressed as percentage of fair market value at the commencement or end of the offering period 85.00%    
Share Based Compensation, Arrangement by Share Based Payment Award, Offering Period 6 months    
Assumptions used to estimate the fair value of the Company ESPPs shares      
Expected dividend yield 0.00% 0.00% 0.00%
Common Stock Repurchase Program      
Authorized amount under stock repurchase program $ 1,000,000,000    
Remaining authorized amount available for stock repurchase 339,500,000    
Shares of common stock repurchased 12,200,000 22,700,000 28,800,000
Average price of shares repurchased (in dollars per share) $ 7.20 $ 7.92 $ 10.57
Reduction in common stock and additional paid-in capital by stock repurchases, excluding commission 87,800,000 179,600,000 304,200,000
1991 Employee Stock Purchase Plan
     
Employee Stock Purchase Plan      
Percentage of employee's eligible compensation as limitation on purchases 10.00%    
Shares purchased     800,000
Average purchase price per share     $ 4.85
Employee Stock Purchase Plan 2010 [Member]
     
Employee Stock Purchase Plan      
Shares purchased 1,900,000 1,800,000 700,000
Average purchase price per share $ 5.52 $ 6.19 $ 8.56
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized 25,000,000    
Number of shares available for issuances 20,600,000    
Employee stock purchase plan
     
Assumptions used to estimate the fair value of the Company ESPPs shares      
Risk-free interest rate (as a percent) 0.10% 0.15% 0.12%
Expected life (in years) 6 months 6 months 6 months
Expected volatility (as a percent) 44.00% 51.00% 46.00%
Weighted-average fair value of the rights to purchase shares (in dollars per share) $ 1.49 $ 1.75 $ 2.70
Cash proceeds from the issuance of shares $ 10,600,000 $ 11,000,000 $ 9,400,000