SHARE-BASED COMPENSATION Allocated Share-based compensation expense (Details) - USD ($)	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Jul. 31, 2015	Jul. 31, 2016	Jul. 31, 2015
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount			$ 0	$ 0
Allocated Share-based Compensation Expense	$ 10,000,000	$ 7,000,000	39,000,000	49,000,000
Cost of products and services
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	2,000,000	2,000,000	9,000,000	10,000,000
Research and development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	2,000,000	2,000,000	7,000,000	8,000,000
Selling, general and administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	6,000,000	3,000,000	23,000,000	31,000,000
RSU grant vesting in 3 years [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Allocated Share-based Compensation Expense	$ 1,000,000	$ 1,000,000	$ 4,000,000	$ 16,000,000