Summary of Significant Accounting Policies - Narrative (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended				3 Months Ended	6 Months Ended
	Apr. 30, 2014 segments	Oct. 31, 2013	Apr. 30, 2014 Unionized Employees Concentration Risk [Member] Number Of Employees Hourly Workers [Member] employees	Apr. 30, 2014 Unionized Employees Concentration Risk [Member] Number of Employees Salaried Workers [Member] employees	Apr. 30, 2014 Brazilian Reporting Unit [Member]	Apr. 30, 2014 Brazilian Reporting Unit [Member]	Jan. 31, 2014 Brazilian Reporting Unit [Member]
Accounting Policies [Line Items]
Number Of Segments	4
Concentration Risk Number Of Employees			5,700	300
concentration risk number of employees percentage			65.00%	4.00%
Goodwill	$ 38	$ 184					$ 142
Indefinite-Lived Intangible Assets (Excluding Goodwill)							43
Goodwill, Impairment Loss					142	142
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)					$ 7	$ 7