RESTRUCTURING CHARGES - Reconciliation of Beginning and Ending Restructuring Reserve Balances (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2023	Jan. 31, 2022
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	$ 12.3
Costs incurred and charged to expense	2.4	$ 3.5
Costs paid or otherwise settled	(1.7)
Restructuring reserve, ending balance	13.0
Employee Separation Costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	11.2
Costs incurred and charged to expense	1.1
Costs paid or otherwise settled	(0.9)
Restructuring reserve, ending balance	11.4
Other Costs
Restructuring Reserve [Roll Forward]
Restructuring reserve, beginning balance	1.1
Costs incurred and charged to expense	1.3
Costs paid or otherwise settled	(0.8)
Restructuring reserve, ending balance	$ 1.6