Goodwill and Other Intangible assets, Net Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 12	$ 12	$ 10
Finite-Lived Intangible Assets, Gross	190	194
Finite-Lived Intangible Assets, Accumulated Amortization	(171)	(162)
Finite-Lived Intangible Assets, Net	19	32
Customer base and relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	73	73
Finite-Lived Intangible Assets, Accumulated Amortization	(69)	(65)
Finite-Lived Intangible Assets, Net	4	8
Other
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	117	121
Finite-Lived Intangible Assets, Accumulated Amortization	(102)	(97)
Finite-Lived Intangible Assets, Net	$ 15	$ 24