XML 115 R95.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Payments (Stock Option Activity) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding in Shares [Roll Forward]    
Number of shares outstanding at December 31, 2010 (shares) 7,086,080  
Number of shares granted 81,040  
Number of shares exercised (744,509)  
Number of shares cancelled (527,340)  
Number of shares outstanding at December 31, 2011 (shares) 5,895,271  
Number of shares exercisable at December 31, 2011 (shares) 4,066,056  
Weighted average exercise price granted $ 54  
Weighted average exercise price exercised $ 30  
Weighted average exercise price cancelled $ 78  
Weighted average exercise price outstanding $ 63 $ 60
Weighted average exercise price exercisable at December 31, 2011 $ 65  
Aggregate intrinsic value outstanding $ 15.2 $ 29.1
Aggregate intrinsic value exercisable at December 31, 2011 $ 14.9