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INVENTORY (Notes)
6 Months Ended
Apr. 30, 2019
Inventory, Net [Abstract]  
INVENTORY
INVENTORY
 
 
April 30,
2019
 
October 31,
2018
 
(in millions)
Finished goods
$
401

 
$
386

Purchased parts and fabricated assemblies
256

 
252

Inventory
$
657

 
$
638