Balance Sheet Details - Property Plant & Equipment (Details) - USD ($) $ in Millions	Jul. 31, 2016	Oct. 31, 2015
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 6,012	$ 5,731
Accumulated depreciation	(4,405)	(4,239)
Property, plant and equipment, net	1,607	1,492
Land, buildings and leasehold improvements
Property, Plant and Equipment, Net
Property, plant and equipment, gross	2,384	2,272
Machinery and equipment, including equipment held for lease
Property, Plant and Equipment, Net
Property, plant and equipment, gross	$ 3,628	$ 3,459