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OVERVIEW AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details)
$ in Millions
 12 Months Ended
Oct. 31, 2020
USD ($)
numberOfCustomers
Oct. 31, 2019
USD ($)
numberOfCustomers
Oct. 31, 2018
USD ($)
numberOfCustomers
Oct. 31, 2017
USD ($)
Advertising Expense        
Advertising costs expensed as incurred $ 48 $ 36 $ 41  
Cash and Cash Equivalents        
Cash and cash equivalents 1,441 1,382 2,247  
Restricted Cash 6 6 7  
Cash, cash equivalents and restricted cash $ 1,447 $ 1,388 $ 2,254 $ 2,686
Accounts Receivable        
Number of customers representing 10 percent or more of accounts receivable. | numberOfCustomers 0 0 0  
Goodwill and Intangible Assets        
Goodwill impairment $ 0 $ 0 $ 0  
Impairment of indefinite-lived intangible assets 90 0 0  
Impairment of finite-lived intangible assets 0 0 21  
Long -Lived Assets        
Impairment of Long-Lived Assets 98 0 21  
Variable Interest Entity        
Remeasurement Gain on step acquisition 0 0 20  
Assets 9,627 9,452    
Fair Value Disclosures        
Fair value of long term debt in excess of carrying value 162 62    
Employee Compensation and Benefits        
Employee compensation and benefits accrued 111 115    
Share-based Payment Arrangement, Noncash Expense [Abstract]        
Share-based compensation expense $ 84 72 71  
Derivative Instruments        
Hedging contracts general maturity 12 months      
Foreign Currency Translation        
Foreign currency translation net gain (Ioss) $ (4) (7) $ (3)  
Accounts Receivable        
Accounts Receivable        
Number of customers representing 10 percent or more of accounts receivable. | numberOfCustomers 0      
Variable Interest Entity, Not Primary Beneficiary        
Variable Interest Entity        
Assets $ 67 29    
Non-US        
Cash and Cash Equivalents        
Cash and cash equivalents $ 1,395      
Lasergen        
Variable Interest Entity        
Purchase price for acquisition   107    
Remeasurement Gain on step acquisition   $ 20    
Minimum        
Goodwill and Intangible Assets        
Finite Lived Intangible Assets Useful Life 6 months      
Minimum | Machinery and Equipment        
Property, Plant and Equipment [Abstract]        
Property, Plant and Equipment, Useful Life 3 years      
Minimum | Software Development        
Property, Plant and Equipment [Abstract]        
Property, Plant and Equipment, Useful Life 3 years      
Maximum        
Goodwill and Intangible Assets        
Finite Lived Intangible Assets Useful Life 15 years      
Maximum | Machinery and Equipment        
Property, Plant and Equipment [Abstract]        
Property, Plant and Equipment, Useful Life 10 years      
Maximum | Software Development        
Property, Plant and Equipment [Abstract]        
Property, Plant and Equipment, Useful Life 5 years