Property and Equipment, Net Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2015	Oct. 31, 2014	Oct. 31, 2013
Property, Plant and Equipment [Line Items]
Commitments For Capital Expenditures In Progress	$ 17	$ 15	$ 11
Capital Expenditures Incurred but Not yet Paid	2	1	2
Operating Leases, Rent Expense	57	62	74
Operating Leases, Income Statement, Sublease Revenue	$ 11	$ 10	$ 7
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