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INVENTORY (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 31, 2019
Oct. 31, 2018
Oct. 31, 2017
Nov. 01, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]        
Inventory-related excess and obsolescence charges $ 27 $ 25 $ 16  
Finished goods 317 283    
Purchased parts and fabricated assemblies 388 336    
Total inventory $ 705 $ 619   $ 619