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Stock-based Compensation Plans - Schedule of Stock Options (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
12 Months Ended
Oct. 31, 2020
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2016
Oct. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value $ 1.0 $ 2.0 $ 3.0    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]          
Options, Outstanding, Number 1,737 1,780 2,408    
Options, Grants in Period, Net of Forfeitures 0 284 236    
Options, Exercises in Period (142) (94) (236)    
Options, Forfeitures and Expirations in Period (661) (233) (628)    
Options, Outstanding, Number 934 1,737 1,780    
Options, Exercisable, Number 686 1,242 1,396    
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]          
Options, Outstanding, Weighted Average Exercise Price $ 33.82 $ 33.70 $ 38.81    
Options, Grants in Period, Weighted Average Exercise Price 0 33.83 40.44    
Options, Exercises in Period, Weighted Average Exercise Price 28.81 23.98 32.78    
Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price 33.65 36.86 56.64    
Options, Outstanding, Weighted Average Exercise Price 34.71 33.82 33.70    
Options, Exercisable, Weighted Average Exercise Price $ 34.35 $ 33.50 $ 33.55    
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, Options, Exercises in Period, Intrinsic Value $ 2.0   $ 1.0    
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, Equity Instruments Other than Options, Nonvested, Number 81 123 152   599
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 27.67 $ 27.67 $ 27.59   $ 27.59
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (42) (29) (13)    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 27.67 $ 27.23 $ 27.67    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 0 0 434    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value $ 0 $ 0 $ 27.59    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Exercisable, Number 81 123 152    
Market-based Stock Options [Member] [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, Nonvested, Number 0 200 387   431
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0 $ 27.24 $ 27.24   $ 27.24
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 200   186 44  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 27.24   $ 27.24 $ 27.24  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period 0 1 0    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value $ 0 $ 27.24 $ 0    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Exercisable, Number 0 200 387    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Exercisable, Weighted Average Grant Date Fair Value $ 0 $ 27.24 $ 27.24    
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      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 0 0 0   0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 0 $ 0 $ 0   $ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period 0 5 4    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 0 $ 32.30 $ 34.97    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period 0 5 4    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value $ 0 $ 32.30 $ 34.97