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Stock Plans (Narrative) (Details) (USD $)
12 Months Ended
Oct. 31, 2012
Oct. 31, 2011
Oct. 31, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Cash received from exercises under all share-based payment arrangements $ 55,053,000 $ 82,035,000 $ 11,096,000
Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award expiration date (in years) 10 years    
Expected requisite service period for options granted to employees (in months) 48 months    
Total intrinsic value of options exercised 56,600,000    
Total unrecognized compensation cost expected to be recognized 7,600,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 2 years 6 months    
Performance Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Performance cycle 3 years    
Percentage of performance units granted 150.00%    
Total unrecognized compensation cost expected to be recognized 7,000,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 1 year 7 months 6 days    
Expected to be awarded in fiscal 2013 98,700    
Performance Units [Member] | Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance units granted 150.00%    
Performance Units [Member] | Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance units granted 0.00%    
2006 Directors Plan [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of non-employee directors in committee 2    
Number of shares authorized granted to Non-Employee Directors 950,000    
Shares remaining for future grant 294,566    
2006 Directors Plan [Member] | Board of Directors Chairman [Member] | November 15 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to purchase shares of common stock awarded 1,650    
2006 Directors Plan [Member] | Board of Directors Chairman [Member] | November 1 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to purchase shares of common stock awarded 4,950    
2006 Directors Plan [Member] | Non Employee Directors [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to purchase shares of common stock awarded, per share amount $ 0.10    
2006 Directors Plan [Member] | Non Employee Directors [Member] | November 15 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to purchase shares of common stock awarded 1,500    
2006 Directors Plan [Member] | Non Employee Directors [Member] | November 1 [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Right to purchase shares of common stock awarded 4,500    
2006 Directors Plan [Member] | Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 1 year    
Weighted average fair value of options granted $ 25.24 $ 18.96  
2007 LTIP [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of non-employee directors in committee 2    
Number of shares authorized granted to Non-Employee Directors 5,230,000    
Shares remaining for future grant 1,784,977    
Percentage fair market value of equity awards on grant date 100.00%    
Award expiration date (in years) 10 years    
Award vesting period (in years) 4 years    
2007 LTIP [Member] | Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Weighted average fair value of options granted $ 25.40 $ 21.15  
2007 LTIP [Member] | Stock Options [Member] | Maximum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award expiration date (in years) 10 years    
Award vesting period (in years) 5 years    
2007 LTIP [Member] | Stock Options [Member] | Minimum [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 3 years 6 months    
2007 LTIP [Member] | Restricted Stock Units (RSUs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award vesting period (in years) 4 years    
Total unrecognized compensation cost expected to be recognized $ 28,600,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 2 years 8 months 19 days