Debt - Financial Services Operations (Details) (USD $) In Millions, unless otherwise specified	Jan. 31, 2014	Oct. 31, 2013
Debt Instrument [Line Items]
Debt, Current	$ 1,259	$ 1,163
Long-term Debt and Capital Lease Obligations	3,605	3,922
Financial Services Operations [Member]
Debt Instrument [Line Items]
Long-term Debt, net	1,652	1,866
Debt, Current	597	505
Long-term Debt and Capital Lease Obligations	1,055	1,361
Financial Services Operations [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, net	752	778
Financial Services Operations [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt, net	820	1,018
Financial Services Operations [Member] | Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term Debt, net	22	21
Financial Services Operations [Member] | Borrowings Secured By Operating and Finance Leases [Member]
Debt Instrument [Line Items]
Long-term Debt, net	$ 58	$ 49