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Stock-based Compensation Plans - Schedule of Stock Based Compensation Other than Options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Oct. 31, 2017
Oct. 31, 2016
Oct. 31, 2015
Oct. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value     $ 10.53  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate 0.00%      
Allocated Share-based Compensation Expense $ 25.0 $ 15.0 $ 9.0  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized $ 20.0      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition 1 year      
Proceeds from exercise of stock options $ 12.0 $ 0.0 $ 1.0  
Performance-based Stock Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 0 244 292  
Equity Instruments Other than Options, Forfeited in Period 0 (244) (48)  
Equity Instruments Other than Options, Nonvested, Number 0 0 244 292
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0.00 $ 28.73 $ 28.48  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 0.00 28.73 27.24  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0.00 $ 0.00 $ 28.73 $ 28.48
Market-based Stock Options [Member] [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 567 615 670  
Equity Instruments Other than Options, Vested in Period   (130) 0 0
Equity Instruments Other than Options, Forfeited in Period (6) (48) (55)  
Equity Instruments Other than Options, Nonvested, Number 431 567 615 670
Equity Instruments Other Than Options, Exercisable, Number 431 567 0  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.24 $ 27.24 $ 27.24  
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value   27.24 0.00 $ 0.00
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 27.24 27.24 27.24  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.24 $ 27.24 $ 27.24 $ 27.24
Share-Settled Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 613 69 188  
Equity Instruments Other than Options, Grants in Period 210 624 0  
Equity Instruments Other than Options, Vested in Period (204) (66) (114)  
Equity Instruments Other than Options, Forfeited in Period 0 (14) (5)  
Equity Instruments Other than Options, Nonvested, Number 619 613 69 188
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 8.74 $ 28.60 $ 28.75  
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 27.28 8.76 0.00  
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 8.74 28.66 28.91  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 0.00 13.07 27.24  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 15.04 $ 8.74 $ 28.60 $ 28.75
Performance-based Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 973 1,409 941  
Equity Instruments Other than Options, Grants in Period 0 0 729  
Equity Instruments Other than Options, Forfeited in Period (374) (436) (261)  
Equity Instruments Other than Options, Nonvested, Number 599 973 1,409 941
Equity Instruments Other Than Options, Exercisable, Number 0   0 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 30.47 $ 31.64 $ 35.41  
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 0.00 0.00 27.61  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 35.09 34.22 33.99  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.59 $ 30.47 $ 31.64 $ 35.41
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other than Options, Aggregate Grant Date Fair Value $ 0.1 $ 0.1 $ 1.1  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 0 0 41  
Equity Instruments Other than Options, Grants in Period 5 5 2  
Equity Instruments Other than Options, Vested in Period (5) (5) (43)  
Equity Instruments Other than Options, Nonvested, Number 0 0 0 41
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0.00 $ 0.00 $ 24.13  
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 24.62 12.52 29.50  
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 24.62 12.52 24.38  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0.00 $ 0.00 $ 0.00 $ 24.13
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period 3 years      
Cash-Settled Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 817 498 469  
Equity Instruments Other than Options, Grants in Period 258 650 280  
Equity Instruments Other than Options, Vested in Period (456) (231) (190)  
Equity Instruments Other than Options, Forfeited in Period (32) (100) (61)  
Equity Instruments Other than Options, Nonvested, Number 587 817 498 469
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 13.95 $ 29.96 $ 33.00  
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 27.48 7.26 27.67  
Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value 15.92 26.06 33.82  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 20.17 22.19 30.75  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 18.02 $ 13.95 $ 29.96 $ 33.00
Employee Service Share-based Compensation, Cash Flow Effect, Cash Used to Settle Awards $ 13.0 $ 2.0 $ 6.0  
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, Equity Instruments Other than Options, Aggregate Grant Date Fair Value $ 9.0 $ 8.0 $ 10.0  
Service and Market Measures [Member] | Cash-settled Performance-based Stock Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 70 172 172  
Equity Instruments Other than Options, Forfeited in Period (70) (102) 0  
Equity Instruments Other than Options, Nonvested, Number 0 70 172 172
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 50.52 $ 69.64 $ 69.64  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 50.52 82.86 0.00  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0.00 $ 50.52 $ 69.64 $ 69.64
Service and Performance Measures [Member] | Cash-settled Performance-based Stock Unit [Member]        
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]        
Equity Instruments Other than Options, Nonvested, Number 379 434 221  
Equity Instruments Other than Options, Grants in Period 0 0 277  
Equity Instruments Other than Options, Forfeited in Period (159) (55) (64)  
Equity Instruments Other than Options, Nonvested, Number 220 379 434 221
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 30.63 $ 30.64 $ 35.11  
Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value 0.00 0.00 27.61  
Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value 34.86 30.65 32.95  
Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.59 $ 30.63 $ 30.64 $ 35.11
Black Scholes [Member] | Performance-based Stock Options [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate     1.40%  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]        
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate     42.90%  
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term     4 years 8 months 12 days