SHARE-BASED COMPENSATION Allocated Share-based compensation expense (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based compensation expense	$ 19	$ 18	$ 50	$ 45
Windfall tax benefit realized	0	0	2	0
Cost of Products and Services [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based compensation expense	3	4	11	10
Research and Development Expense [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based compensation expense	3	2	7	6
Selling, General, and Administrative [Member]
Share-based Compensation, Allocation and Classification in Financial Statements [Abstract]
Share-based compensation expense	$ 13	$ 12	$ 32	$ 29