Condensed Consolidating Guarantor and Non-Guarantor - Guarantor and Non-Guarantor Parenthetical (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2013	Jul. 31, 2012
Defined benefit plan, tax	$ (1)	$ 13	$ (2)	$ 36
Parent Company [Domain]
Defined benefit plan, tax	(1)	13	(2)	36
Guarantor Subsidiaries [Domain]
Defined benefit plan, tax	0	10	0	33
Non-Guarantor Subsidiaries [Domain]
Defined benefit plan, tax	(1)	3	(2)	4
Consolidation, Eliminations [Domain]
Defined benefit plan, tax	$ 1	$ (13)	$ 2	$ (37)