SHARE-BASED COMPENSATION Allocated Share-based compensation expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	$ 25	$ 27	$ 69	$ 72
Cost of Products and Services
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	7	6	20	17
Research and Development
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	3	2	8	8
Selling, General and Administrative
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Share-based compensation expense	$ 15	$ 19	$ 41	$ 47