Segment Information (Details) $ in Millions	3 Months Ended	12 Months Ended
Jan. 31, 2017 USD ($) segment	Oct. 31, 2016 USD ($)	Oct. 31, 2015
Segment Reporting [Abstract]
Number of segments \| segment	5
Advance royalty proceeds received from intercompany advanced royalty payments and licensing arrangements \| $	$ 439	$ 3,700
Royalty recognition term			5 years

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration