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INVENTORY (Tables)
12 Months Ended
Oct. 31, 2019
Inventory Disclosure [Abstract]  
Inventory

 
October 31,
 
2019
 
2018
 
(in millions)
Finished goods
$
416

 
$
386

Purchased parts and fabricated assemblies
263

 
252

Inventory
$
679

 
$
638