RESTRUCTURING AND OTHER RELATED COSTS - Rollforward (Details) $ in Millions	12 Months Ended
	Oct. 31, 2025 USD ($) numberOfCustomers	Oct. 31, 2024 USD ($) numberOfCustomers	Oct. 31, 2023 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	$ 13	$ 36
Restructuring Charges	82	76	$ 46
Non-cash settlement	(18)	(8)
Payments for Restructuring	(60)	(91)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	1
Restructuring Reserve, Ending Balance	18	13	36
Restructuring and Related Cost, Cost Incurred to Date	204
FY23 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	2	36
Restructuring Charges		4	46
Non-cash settlement		(1)
Payments for Restructuring	(2)	(37)
Restructuring Reserve, Ending Balance	0	$ 2	36
Restructuring and Related Cost, Cost Incurred to Date	50
Restructuring and Related Cost, Positions Eliminated [Abstract]
Restructuring and Related Cost, Number of Positions Eliminated | numberOfCustomers		400
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent		2.00%
FY24 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$ 73
Restructuring and Related Cost, Positions Eliminated [Abstract]
Restructuring and Related Cost, Number of Positions Eliminated | numberOfCustomers	500
Restructuring and Related Cost, Number of Positions Eliminated, Period Percent	3.00%
FY25 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	$ 81
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	13	$ 31
Restructuring Charges	82	75
Non-cash settlement	(18)	(7)
Payments for Restructuring	(60)	(86)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	1
Restructuring Reserve, Ending Balance	18	13	31
Employee Severance | FY23 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	2	31
Restructuring Charges		3
Non-cash settlement		0
Payments for Restructuring	(2)	(32)
Restructuring Reserve, Ending Balance	0	2	31
Employee Severance | FY24 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	11	0
Restructuring Charges	1	72
Non-cash settlement		(7)
Payments for Restructuring	(12)	(54)
Restructuring Reserve, Ending Balance	0	11	0
Employee Severance | FY25 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	0
Restructuring Charges	81
Non-cash settlement	(18)
Payments for Restructuring	(46)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	1
Restructuring Reserve, Ending Balance	18	0
Facility Closing
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	0	5
Restructuring Charges	0	1
Non-cash settlement	0	(1)
Payments for Restructuring	0	(5)
Restructuring Reserve, Foreign Currency Translation Gain (Loss)	0
Restructuring Reserve, Ending Balance	0	0	5
Facility Closing | FY23 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve, Beginning Balance	0	5
Restructuring Charges		1
Non-cash settlement		(1)
Payments for Restructuring	0	(5)
Restructuring Reserve, Ending Balance	$ 0	$ 0	$ 5