Goodwill and Other Intangible assets, Net Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 7	$ 12	$ 12
Finite-Lived Intangible Assets, Gross	152	154
Finite-Lived Intangible Assets, Accumulated Amortization	(140)	(135)
Finite-Lived Intangible Assets, Net	12	19
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	84	83
Finite-Lived Intangible Assets, Accumulated Amortization	(74)	(68)
Finite-Lived Intangible Assets, Net	10	15
Customer base and relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	68	71
Finite-Lived Intangible Assets, Accumulated Amortization	(66)	(67)
Finite-Lived Intangible Assets, Net	$ 2	4
Customer base and relationships
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net		2
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net		$ 34