Financial Instruments and Commodity Contracts - Narrative (Details) - USD ($)	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015
Derivative [Line Items]
Derivative, Amount of Hedged Item	$ 0		$ 0
Derivative, Collateral, Obligation to Return Cash	1,000,000	$ 1,000,000
Exposure to Credit Risk	5,000,000	1,000,000
Commodity Contract [Member]
Derivative [Line Items]
Derivative, Notional Amount	13,000,000	6,000,000
Commodity Contract, Diesel Fuel [Member]
Derivative [Line Items]
Derivative, Notional Amount	11,000,000	24,000,000
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Derivative [Line Items]
Derivative, Notional Amount	0	0
Mexican Financial Services [Member] | Asset-backed Securities [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 128,000,000	$ 108,000,000