Financial Instruments and Commodity Contracts - Balance Sheet Location (Details) (USD $) In Millions, unless otherwise specified	Jul. 31, 2013	Oct. 31, 2012
Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 5	$ 0
Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	2	5
Commodity Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	0	0
Commodity Contract [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	2	3
Commodity Contract [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	3	0
Commodity Contract [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives	0	2
Interest Rate Cap [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	2
Interest Rate Cap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 0