Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Summary of Significant Accounting Policies - Variable Interest Entities (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014	Apr. 30, 2014	Oct. 31, 2013	May 28, 2015
Variable Interest Entity [Line Items]
Cash and cash equivalents	$ 583	$ 497	$ 594	$ 755
Variable Interest Entity Primary Beneficiary Blue Diamond Parts And Blue Diamond Truck [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	263	297
Cash and cash equivalents	87	77
Liabilities	238	250
Variable Interest Entity Primary Beneficiary Securitizations Treated As Borrowings [Member] \| Financial Services Operations [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	1,200	1,100
Liabilities	923	896
Transaction Does Not Qualify for Sale Accounting [Member] \| Financial Services Operations [Member]
Variable Interest Entity [Line Items]
Variable Interest Entity, Consolidated, Carrying Amount, Assets	213	156
Liabilities	$ 92	$ 54
Subsequent Event [Member] \| Variable Interest Entity Primary Beneficiary, Blue Diamond Trucks [Member]
Variable Interest Entity [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners					25.00%