Discontinued Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2013	Jan. 31, 2012
Statements of Operations for Discontinued Operations [Line Items]
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ (9)	$ (9)
Segment, Discontinued Operations [Member]
Statements of Operations for Discontinued Operations [Line Items]
Discontinued Operations, Sales Revenue, Goods, Net	34	43
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	(9)	(14)
Discontinued Operation, Tax Effect of Discontinued Operation	0	(5)
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax	$ (9)	$ (9)