RESTRUCTURING CHARGES - Reconciliation of Beginning and Ended Restructuring Reserve Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 12.3	$ 20.3
Costs incurred and charged to expense	18.7	13.0	$ 23.1
Costs paid or otherwise settled	(14.2)	(21.0)
Restructuring reserve, ending balance	16.8	12.3	20.3
Employee Separation Costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	11.2	18.6
Costs incurred and charged to expense	11.8	6.3	14.9
Costs paid or otherwise settled	(6.6)	(13.7)
Restructuring reserve, ending balance	16.4	11.2	18.6
Other Costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1.1	1.7
Costs incurred and charged to expense	6.9	6.7
Costs paid or otherwise settled	(7.6)	(7.3)
Restructuring reserve, ending balance	$ 0.4	$ 1.1	$ 1.7