v2.4.0.6
Compensation Plans and Programs (Details) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Equity Available for Grant [Roll Forward]      
Equity Instruments Available for Grant as of December 31, 2010 3,209,000    
RSUs granted (156,000)    
Options Expired and RSUs cancelled 441,000    
Equity Instruments Available for Grant as of December 31, 2011 3,494,000 3,209,000  
Number of Shares Authorized 3,000,000    
Minimum Exercise Price Per Share Options 100.00%    
Stock Options, Outstanding [Roll Forward]      
Outstanding Options, as of December 31, 2010 675,000    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period 0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period (333,000)    
Outstanding Options, as of December 31, 2011 342,000 675,000  
Weighted Average Excercise Price, as of December 31, 2010 $ 13.94    
Cancellations in Period, Weighted Average Exercise Price $ 0.00    
Exercises in Period, Weighted Average Exercise Price $ 13.50    
Weighted Average Exercise Price, as of December 31, 2011 $ 14.37 $ 13.94  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term 14.6    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Lower Range Limit $ 8.25    
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Upper Range Limit $ 11.63    
Intrinsic Value of Stock Options Exercised During Period $ 12,100,000 $ 25,300,000 $ 11,200,000
Stock Options, Outstanding, Intrinsic Value 10,000,000    
Proceeds from Stock Options Exercised 4,497,000 21,520,000 7,635,000
Vested in Period, Total Fair Value 8,000,000 7,800,000 6,300,000
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options 300,000 700,000  
Proceeds From Stock Options If Exercised 4,900,000 9,400,000  
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Minimum 0    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Maximum 3    
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures 0    
Performance Based RSU Minimum Payout 0    
Performance Based RSU Max Payout 3    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
RSUs granted 156,000    
RSUs, Grants in Period, Weighted Average Grant Date Fair Value $ 42.17 $ 31.77 $ 26.91
Common Stock, Shares, Issued 69,118,000 68,602,000 25,563
Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights 100,000    
Estimated Performance Based Awards Payout Ratio 100.00%    
Share-based Compensation 8,115,000 5,801,000 9,789,000
Other Postretirement Benefit Expense 1,000,000    
Accrued Liabilities 0   600,000
Short Term Incentive Performance Based Payout 30.00%    
Performance Based Awards Cycle 5 and 6 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Estimated Performance Based Awards Payout Ratio 100.00%    
Revised Estimate Performance Based Awards Payout Ratio 50.00%    
Other Labor-related Expenses 5,700,000    
LTCP Cash Cycle 3 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Estimated Performance Based Awards Payout Ratio   50.00% 100.00%
Revised Estimate Performance Based Awards Payout Ratio     50.00%
Actual Performance Based Awards Payout Ratio   86.00%  
Other Labor-related Expenses   3,300,000 (2,300,000)
RSU Cycle 4 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Actual Performance Based Awards Payout Ratio 31.00%    
Share-based Compensation 1,300,000    
Performance Based Awards Cash Payout [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Other Labor-related Expenses 1,800,000 11,200,000 100,000
Performance Based Awards Cash Payout [Member] | Managers and Technical Equivalent and/or Above [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 100.00%    
Stock Options Outstaning which have an Indefinite Contractual Term [Member]
     
Stock Options, Outstanding [Roll Forward]      
Outstanding Options, as of December 31, 2011 100,000    
RSU Awards [Member]
     
Equity Available for Grant [Roll Forward]      
RSUs granted 156,000    
Stock Options, Outstanding [Roll Forward]      
Vested in Period, Total Fair Value 5,100,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
RSUs, Nonvested, Number,Beginning of Period 976,000    
RSUs granted (156,000)    
RSUs, Forfeited in Period (441,000)    
RSUs, Vested in Period (193,000)    
RSUs, Nonvested, Number, End of Period 498,000    
RSUs, Nonvested Weighted Average Grant Date Fair Value $ 28,760    
RSUs, Grants in Period, Weighted Average Grant Date Fair Value $ 42,170    
RSUs, Forfeited in Period, Weighted Average Grant Date Fair Value $ 27,060    
RSUs, Vested in Period, Weighted Average Grant Date Fair Value $ 27,290    
RSUs Nonvested, Weighted Average Grant Date Fair Value CLONE $ 35,930    
Restricted Stock Units (RSU) and/or Restricted Stock [Member]
     
Equity Available for Grant [Roll Forward]      
RSUs granted 200,000 200,000  
Stock Options, Outstanding [Roll Forward]      
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures 100,000    
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized $ 6,000,000 $ 7,600,000  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
RSUs granted (200,000) (200,000)  
Time Based Awards [Member] | Below Manager [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 100.00%    
Time Based Awards [Member] | Employees Below Manager [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 75.00%    
Time Based Awards [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 25.00%    
Time Based Awards [Member] | Executives [Member] [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 50.00%    
Time Based Awards [Member] | Year One [Member] | Employees Below Manager [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 33.00%    
Time Based Awards [Member] | Year One [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 25.00%    
Time Based Awards [Member] | Year One [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Time Based Awards [Member] | Year Two [Member] | Employees Below Manager [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 33.00%    
Time Based Awards [Member] | Year Two [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 25.00%    
Time Based Awards [Member] | Year Two [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Time Based Awards [Member] | Year Three [Member] | Employees Below Manager [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 34.00%    
Time Based Awards [Member] | Year Three [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 25.00%    
Time Based Awards [Member] | Year Three [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 50.00%    
Performance Based Awards [Member]
     
Equity Available for Grant [Roll Forward]      
RSUs granted 100,000    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
RSUs granted (100,000)    
Performance Based Awards [Member] | Year One [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Performance Based Awards [Member] | Year One [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Performance Based Awards [Member] | Year Two [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Performance Based Awards [Member] | Year Two [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 0.00%    
Performance Based Awards [Member] | Year Three [Member] | Managers and Technical Equivalent [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 25.00%    
Performance Based Awards [Member] | Year Three [Member] | Senior Officers [Member]
     
Stock Options, Outstanding [Roll Forward]      
RSU Vest Schedule 50.00%    
Performance Based Awards Equity Payout [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Performance Based RSU Maximum Payout 300.00%    
Performance Base Cash Maximum Payout 225.00%    
Performance Based Awards Equity Payout [Member] | Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Common Stock, Shares, Issued 0    
Performance Based Awards Equity Payout [Member] | Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Common Stock, Shares, Issued 100,000    
Performance Based Awards Equity Payout [Member] | Managers and Technical Equivalent and/or Above [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 25.00%    
Performance Based Awards Equity Payout [Member] | Executives [Member] [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 50.00%    
Performance Based Awards Cash or Equity Payout [Member] [Member] | Managers and Technical Equivalent and/or Above [Member]
     
Stock Options, Outstanding [Roll Forward]      
Type of Long-Term Compensation Award 75.00%    
Performance Based Incentive Max Payout 200.00%    
Short-Term Incentive Plan Restricted Stock [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]      
Estimated Performance Based Awards Payout Ratio 100.00%