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Stock Plans (Narrative) (Details) (USD $)
12 Months Ended
Oct. 31, 2013
Oct. 31, 2012
Oct. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Current Fiscal Year End Date --10-31    
Cash received from exercises under all share-based payment arrangements $ 19,287,000 $ 55,053,000 $ 82,035,000
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 9,800,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 1 year 8 months 12 days    
Expected to be awarded in fiscal 2014 106,787    
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) 60 months    
Total intrinsic value of options exercised 55,800,000    
Total unrecognized compensation cost expected to be recognized 9,000,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 3 years 1 month 5 days    
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 to be granted 950,000    
Shares remaining for future grant 246,516    
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] | Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 1 year    
Weighted average fair value of options granted $ 32.20 $ 25.24  
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 to be granted 5,230,000    
Shares remaining for future grant 1,609,325    
Percentage fair market value of equity awards on grant date 100.00%    
Award expiration date (in years) 10 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 $ 31.51 $ 25.40  
2007 LTIP [Member] | Restricted Stock Units (RSUs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Total unrecognized compensation cost expected to be recognized 36,700,000    
Total unrecognized compensation cost expected to be recognized over a remaining weighted-average vesting period (in years) 3 years 1 month 5 days    
November 15 [Member] | 2006 Directors Plan [Member] | Non Employee Directors [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred Compensation Arrangement With Individual Amounts Authorized For Issuance 135,000    
November 15 [Member] | 2006 Directors Plan [Member] | Non Executive Chairman [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred Compensation Arrangement With Individual Amounts Authorized For Issuance 148,000    
November 1 [Member] | 2006 Directors Plan [Member] | Non Employee Directors [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred Compensation Arrangement With Individual Amounts Authorized For Issuance 135,000    
November 1 [Member] | 2006 Directors Plan [Member] | Non Executive Chairman [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Deferred Compensation Arrangement With Individual Amounts Authorized For Issuance $ 148,500    
Minimum [Member] | Performance Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance units granted 0.00%    
Minimum [Member] | 2007 LTIP [Member] | Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years 6 months    
Minimum [Member] | 2007 LTIP [Member] | Restricted Stock Units (RSUs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 4 years    
Maximum [Member] | Performance Units [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Percentage of performance units granted 150.00%    
Maximum [Member] | 2007 LTIP [Member] | Stock Options [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Award expiration date (in years) 10 years    
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years    
Maximum [Member] | 2007 LTIP [Member] | Restricted Stock Units (RSUs) [Member]
     
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 5 years