Annual report pursuant to Section 13 and 15(d)

Stock-Based Compensations (Grants) (Details)

v2.4.0.6
Stock-Based Compensations (Grants) (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum 44.80% 44.80% 36.00%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 7.32 $ 7.11 $ 3.57
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum 47.50% 46.40% 46.40%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding options, Beginning Balance 47,583,000    
Options granted 6,158,000 10,600,000 17,500,000
Options exercised (2,805,000)    
Options forfeited/cancelled (5,713,000)    
Outstanding options, Ending Balance 45,223,000 47,583,000  
Exercisable options 16,155,000    
Outstanding WAEP, Beginning of Period $ 12.10    
WAEP granted $ 15.96    
WAEP exercised $ 4.79    
WAEP forfeited/cancelled $ 20.25    
Outstanding WAEP, End of Period $ 12.06 $ 12.10  
Exercisable WAEP $ 12.96    
Common Class B [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding options, Beginning Balance 7,491,000    
Options granted 0    
Options exercised 0    
Options forfeited/cancelled (7,041,000)    
Outstanding options, Ending Balance 450,000    
Exercisable options 450,000    
Outstanding WAEP, Beginning of Period $ 23.41    
WAEP granted $ 0.00    
WAEP exercised $ 0.00    
WAEP forfeited/cancelled $ 23.64    
Outstanding WAEP, End of Period $ 19.74    
Exercisable WAEP $ 19.74    
Series A [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]      
Outstanding options, Ending Balance 45,223,000    
Exercisable options 16,155,000    
Outstanding WAEP, End of Period $ 12.06    
Exercisable WAEP $ 12.96