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INVENTORY
9 Months Ended
Jul. 31, 2020
Inventory, Net [Abstract]  
INVENTORY
8.    INVENTORY
 
July 31,
2020
 
October 31,
2019
 
(in millions)
Finished goods
$
351

 
$
317

Purchased parts and fabricated assemblies
427

 
388

Total inventory
$
778

 
$
705


Inventory-related excess and obsolescence charges recorded in total cost of products were $21 million and $20 million for the nine months ended July 31, 2020 and 2019, respectively. We record excess and obsolete inventory charges for inventory at our sites as well as inventory at our contract manufacturers and suppliers, where we have non-cancellable purchase commitments.