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CONSOLIDATED STATEMENT OF EQUITY - USD ($)
$ in Millions
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income/(Loss) [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Cumulative Effect, Period of Adoption, Adjustment [Member]
Retained Earnings [Member]
Common Stock, Shares, Outstanding at Oct. 31, 2017   188,310,000            
Treasury Stock, Shares at Oct. 31, 2017       (2,289,000)        
Beginning Balance at Oct. 31, 2017 $ 2,310 $ 2 $ 1,786 $ (62) $ 1,041 $ (457)    
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 165       165      
Issuance of Common Stock (in shares)   2,894,000            
Issuance of Common Stock (in $) 62   62          
Other comprehensive income (loss), net of tax (31)         (31)    
Taxes related to net share settlement of equity awards (18)   (18)          
Share-based compensation $ 59   59          
Treasury Stock, Shares, Acquired (2,075,460)     (2,075,000)        
Repurchase of common stock (at cost) $ (120)     $ (120)        
Ending Balance at Oct. 31, 2018 2,433 $ 2 1,889 $ (182) 1,212 (488) $ 6 $ 6
Common Stock, Shares, Outstanding at Oct. 31, 2018   191,204,000            
Treasury Stock, Shares at Oct. 31, 2018       (4,364,000)        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 621       621      
Issuance of Common Stock (in shares)   2,565,000            
Issuance of Common Stock (in $) 68   68          
Other comprehensive income (loss), net of tax (90)         (90)    
Taxes related to net share settlement of equity awards (26)   (26)          
Share-based compensation $ 82   82          
Treasury Stock, Shares, Acquired (2,093,570)     (2,094,000)        
Repurchase of common stock (at cost) $ (160)     $ (160)        
Ending Balance at Oct. 31, 2019 3,004 $ 2 2,013 $ (342) 1,909 (578) $ 76 $ 76
Common Stock, Shares, Outstanding at Oct. 31, 2019   193,769,000            
Treasury Stock, Shares at Oct. 31, 2019       (6,458,000)        
Increase (Decrease) in Stockholders' Equity [Roll Forward]                
Net income 627       627      
Issuance of Common Stock (in shares)   1,892,000            
Issuance of Common Stock (in $) 58   58          
Other comprehensive income (loss), net of tax (21)         (21)    
Taxes related to net share settlement of equity awards (53)   (53)          
Share-based compensation $ 92   92          
Treasury Stock, Shares, Acquired (4,274,366)     (4,274,000)        
Repurchase of common stock (at cost) $ (410)     $ (410)        
Ending Balance at Oct. 31, 2020 $ 3,297 $ 2 $ 2,110 $ (752) $ 2,536 $ (599)    
Common Stock, Shares, Outstanding at Oct. 31, 2020   195,661,000            
Treasury Stock, Shares at Oct. 31, 2020       (10,732,000)