Property and Equipment, Net Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2016	Oct. 31, 2015	Oct. 31, 2014
Property, Plant and Equipment [Line Items]
Commitments For Capital Expenditures In Progress	$ 24	$ 17	$ 15
Capital Expenditures Incurred but Not yet Paid	1	2	1
Operating Leases, Rent Expense	53	57	62
Operating Leases, Income Statement, Sublease Revenue	$ 12	$ 11	$ 10
Minimum [Member]
Property, Plant and Equipment [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	1 year
Maximum [Member]
Property, Plant and Equipment [Line Items]
Lessee Leasing Arrangements, Operating Leases, Term of Contract	20 years