Financial Instruments and Commodity Contracts - Balance Sheet Location (Details) (USD $) In Millions, unless otherwise specified	Oct. 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	0	5
Commodity Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives		0
Commodity Contract [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Liability derivatives		3
Commodity Contract [Member] | Other Assets [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	4	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	1
Interest Rate Cap [Member] | Other Liabilities [Member]
Derivatives, Fair Value [Line Items]
Asset derivatives	$ 0