XML 93 R80.htm IDEA: XBRL DOCUMENT v2.4.0.6
Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Y
Dec. 31, 2011
Dec. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Retirement eligible age under the plan 62    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 37.2    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition 1 year 6 months    
Stock options granted during period (in shares) 0    
Stock options forfeited or expired during period (in shares) 0    
Intrinsic value of stock options exercised $ 6.4 $ 11.8 $ 14.9
Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting service 3 years    
Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting service 4 years    
Incentive compensation and stock plan
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock shares authorized for awards (in shares) 48,000,000    
Stock options
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting service 3 years    
Share-based compensation arrangement by share-based payment award, expiration period 10 years    
Restricted stock units (RSUs)
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of stock units outstanding to active and nonemployee directors (in units) 879,000    
Restricted stock | Minimum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting service 3 years    
Restricted stock | Maximum
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting service 4 years    
Performance shares
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected payout shares (in shares) 194,000    
Vesting date January 2015    
Market based award
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Expected payout shares (in shares) 0    
Shares converted to common stock | Incentive compensation and stock plan
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Common stock shares authorized for awards (in shares) 18,000,000    
Shares reserved for existing awards | Incentive compensation and stock plan
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares reserved to satisfy existing awards (in shares) 3,800,000    
Shares available for future awards | Incentive compensation and stock plan
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares available for future awards (in shares) 21,300,000    
Subsequent event information
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Vesting date 1/2/2013    
Restricted stock awards vested and issued subsequent event
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of shares issued to employees under restricted stock awards (in shares) 1,100,000