Financial Instruments and Commodity Contracts (Income Statement Location) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2012	Jan. 31, 2011
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	$ (4)	$ 16
Cross Currency Interest Rate Contract [Member] | Other Income, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	1	0
Foreign Currency Contract [Member] | Other Income, Net [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	(4)	(1)
Forward Contracts [Member] | Commodity Contract [Member] | Cost of Products Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized	$ (1)	$ 17