Financial Instruments and Commodity Contracts - Derivative Financial Instruments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2016	Apr. 30, 2015	Apr. 30, 2016	Apr. 30, 2015
Derivative [Line Items]
Derivative Instruments,Derivative, Gain (Loss) on Derivative, Net	$ 2	$ 4	$ (2)	$ (9)
Cross currency swaps | Other Income Expense Net [Member]
Derivative [Line Items]
Derivative Instruments,Derivative, Gain (Loss) on Derivative, Net	0	(1)	0	(3)
Foreign Exchange Contract [Member] | Other Income Expense Net [Member]
Derivative [Line Items]
Derivative Instruments,Derivative, Gain (Loss) on Derivative, Net	(5)	0	(4)	(1)
Commodity Contract [Member] | Cost of Sales [Member]
Derivative [Line Items]
Derivative Instruments,Derivative, Gain (Loss) on Derivative, Net	$ 7	$ 5	$ 2	$ (5)