Stock Based Compensation Plans (Details) (USD $)
12 Months Ended
Oct. 31, 2011
Oct. 31, 2010
Oct. 31, 2009
Stock-based compensation expense:      
Stock options (under the 2008 Plan) $ 31,536,000 $ 32,225,000 $ 34,305,000
Restricted shares (under the 2008 Plan) 17,180,000 13,065,000 5,920,000
Phantom stock units (under the 2008 Plan) 264,000 301,000 195,000
Employee stock purchase plan 782,000 1,099,000 897,000
Incentive Plan - Stock Alternative Expense 373,000 342,000 153,000
ACM Plan 639,000 408,000 200,000
PPA Plan 1,520,000 720,000  
Total stock-based compensation expense 52,294,000 48,160,000 41,670,000
Tax benefits expected to be realized for tax deductions from option exercises $ 16,500,000 $ 15,000,000 $ 12,000,000