XML 54 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
INVENTORY (Details) - USD ($)
$ in Millions
Apr. 30, 2018
Oct. 31, 2017
Inventory, Net [Abstract]    
Finished goods $ 367 $ 363
Purchased parts and fabricated assemblies 227 212
Inventory $ 594 $ 575