ACQUISITIONS OF ESI (Details) $ in Millions		3 Months Ended	12 Months Ended
	Nov. 03, 2023 USD ($)	Jan. 31, 2025 USD ($)	Oct. 31, 2025 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2024 USD ($)	Oct. 31, 2023 USD ($)	Nov. 03, 2023 € / shares
Business Combination [Line Items]
Payments to Acquire Businesses, Net of Cash Acquired			$ 2,022		$ 681	$ 85
Payments to Noncontrolling Interests			0		$ 458	$ 0
Business Combination, Recognized Liability Assumed, Deferred Tax Liability			$ 168
ESI Group SA
Business Combination [Line Items]
Acquisition effective date			Nov. 03, 2023
Business Combination, Voting Equity Interest Acquired, Percentage	50.60%
Payments to Acquire Businesses, Net of Cash Acquired	$ 477
Payments to Noncontrolling Interests		$ 458
Business Combination, Recognized Liability Assumed, Liability	$ 7
Business Combination, Price Per Share | € / shares							€ 155
Business Combination, Acquiree's Revenue since Acquisition Date, Actual				$ 141
Business Combination, Acquiree's Earnings (Loss) since Acquisition Date, Actual				$ 68