Finance Receivables - Schedule of Finance Revenues (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Finance Revenues [Line Items]
Retail notes and finance leases revenue	$ 12	$ 16	$ 37	$ 49
Gross finance revenues	63	60	183	172
Less: Intercompany revenues	(26)	(22)	(75)	(57)
Finance revenues	37	38	108	115
Financing Receivable [Member]
Finance Revenues [Line Items]
Operating lease revenue	16	15	46	44
Wholesale Portfolio [Member] | Notes Receivable [Member]
Finance Revenues [Line Items]
Interest Income, Operating	27	22	75	59
Retail And Wholesale Portfolios [Member]
Finance Revenues [Line Items]
Interest Income, Operating	$ 8	$ 7	$ 25	$ 20