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INVENTORY (Notes)
6 Months Ended
Apr. 30, 2021
Inventory, Net [Abstract]  
INVENTORY INVENTORY
 
Inventory as of April 30, 2021 and October 31, 2020 consisted of the following:

 April 30,
2021
October 31,
2020
 (in millions)
Finished goods$443 $417 
Purchased parts and fabricated assemblies348 303 
Inventory$791 $720