Debt - Financial Services Operations (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2014	Oct. 31, 2013
Debt Instrument [Line Items]
Debt, Current	$ 956	$ 1,163
Long-term Debt and Capital Lease Obligations	4,144	3,922
Financial Services Operations [Member]
Debt Instrument [Line Items]
Long-term Debt, net	1,930	1,866
Debt, Current	689	505
Long-term Debt and Capital Lease Obligations	1,241	1,361
Financial Services Operations [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, net		778
Financial Services Operations [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, net		1,018
Financial Services Operations [Member] | Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term Debt, net		21
Financial Services Operations [Member] | Borrowings Secured By Operating and Finance Leases [Member]
Debt Instrument [Line Items]
Long-term Debt, net		$ 49