Debt - Schedule of Debt Instruments (Details) - USD ($) $ in Millions	Jul. 31, 2015	Oct. 31, 2014
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations	$ 4,196	$ 3,929
Financial Services Operations [Member]
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations, Including Current Maturities	2,398	2,266
Long-term Debt and Capital Lease Obligations, Current	990	1,195
Long-term Debt and Capital Lease Obligations	1,408	1,071
Financial Services Operations [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	1,135	914
Financial Services Operations [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt	1,147	1,242
Financial Services Operations [Member] | Commercial Paper [Member]
Debt Instrument [Line Items]
Long-term Debt	90	74
Financial Services Operations [Member] | Borrowings Secured By Operating and Finance Leases [Member]
Debt Instrument [Line Items]
Long-term Debt	26	36
Manufacturing Operations [Member]
Debt Instrument [Line Items]
Long-term Debt and Capital Lease Obligations, Including Current Maturities	2,888	2,958
Long-term Debt and Capital Lease Obligations, Current	100	100
Long-term Debt and Capital Lease Obligations	2,788	2,858
Manufacturing Operations [Member] | Line of Credit [Member]
Debt Instrument [Line Items]
Long-term Debt	695	694
Manufacturing Operations [Member] | Notes Payable to Banks [Member] | Eight Point Two Five Percent Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	$ 18	20
Debt Instrument, Interest Rate, Stated Percentage	8.25%
Long-term Debt	$ 1,182	1,180
Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Five Zero Senior Subordinated Convertible Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	$ 16	19
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Long-term Debt	$ 184	181
Manufacturing Operations [Member] | Convertible Subordinated Debt [Member] | Four Point Seven Five Senior Subordinated Convertible Notes [Member] [Member]
Debt Instrument [Line Items]
Debt Instrument, Unamortized Discount	$ 34	40
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Long-term Debt	$ 377	371
Manufacturing Operations [Member] | Debt Of Majority Owned Dealerships [Member]
Debt Instrument [Line Items]
Long-term Debt	26	30
Manufacturing Operations [Member] | Financing Arrangements and Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 48	54
Manufacturing Operations [Member] | Tax Exempt Bond [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Long-term Debt	$ 225	225
Manufacturing Operations [Member] | Promissory Note [Member]
Debt Instrument [Line Items]
Long-term Debt	3	10
Manufacturing Operations [Member] | Financed lease obligations [Member]
Debt Instrument [Line Items]
Long-term Debt	129	184
Manufacturing Operations [Member] | Notes Payable, Other Payables [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 19	$ 29