Summary of Significant Accounting Policies - Narrative (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended				3 Months Ended			9 Months Ended
	Jul. 31, 2014 segments	Oct. 31, 2013	Jul. 31, 2014 Unionized Employees Concentration Risk [Member] Number Of Employees Hourly Workers [Member] employees	Jul. 31, 2014 Unionized Employees Concentration Risk [Member] Number of Employees Salaried Workers [Member] employees	Jul. 31, 2014 Brazilian Reporting Unit [Member]	Apr. 30, 2014 Brazilian Reporting Unit [Member]	Jul. 31, 2013 Brazilian Reporting Unit [Member]	Jul. 31, 2014 Brazilian Reporting Unit [Member]	Jul. 31, 2013 Brazilian Reporting Unit [Member]
Accounting Policies [Line Items]
Number Of Segments	4
Concentration Risk Number Of Employees			6,000	300
concentration risk number of employees percentage			68.00%	5.00%
Goodwill	$ 38	$ 184				$ 142
Indefinite-Lived Intangible Assets (Excluding Goodwill)						43
Goodwill, Impairment Loss					0	142	0	142	0
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)					$ 0	$ 7	$ 0	$ 7	$ 0