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INVENTORY (Notes)
3 Months Ended
Jan. 31, 2017
Inventory, Net [Abstract]  
INVENTORY
6. INVENTORY
 
 
January 31,
2017
 
October 31,
2016
 
(in millions)
Finished goods
$
354

 
$
339

Purchased parts and fabricated assemblies
197

 
194

Inventory
$
551

 
$
533