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INVENTORY (Tables)
12 Months Ended
Oct. 31, 2016
Inventory Disclosure [Abstract]  
Inventory
 
October 31,
 
2016
 
2015
 
(in millions)
Finished goods
$
339

 
$
362

Purchased parts and fabricated assemblies
194

 
179

Inventory
$
533

 
$
541