SHARE-BASED COMPENSATION Allocated Share-based compensation expense (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2023
Share-based compensation disclosures
Share-based compensation expense	$ 129	$ 130	$ 112
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Share-based compensation expense	0	0
Cost of Product and Services
Share-based compensation disclosures
Share-based compensation expense	44	41	34
Research and Development
Share-based compensation disclosures
Share-based compensation expense	15	16	13
Selling, General and Administrative
Share-based compensation disclosures
Share-based compensation expense	$ 70	$ 73	$ 65