Financial Instruments (Details 2) (USD $) In Millions, unless otherwise specified	Apr. 30, 2014	Oct. 31, 2013
Cost
Due in one to five years	$ 33
Due in more than five years	392
Total	425
Fair Value
Due in one to five years	33
Due in more than five years	463
Total	496
Investment Holdings
Investment amount	704	770
Equity securities in privately held companies | Long-term Financing Receivables and Other Assets
Investment Holdings
Investment amount	$ 52	$ 50