RESTRUCTURING CHARGES - Reconciliation of Beginning and Ended Restructuring Reserve Balances (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2020
Restructuring Reserve [Roll Forward]
Beginning balance	$ 20.3	$ 21.6
Costs incurred and charged to expense	13.0	23.1	$ 38.7
Costs paid or otherwise settled	(21.0)	(24.4)
Ending balance	12.3	20.3	21.6
Employee Separation Costs
Restructuring Reserve [Roll Forward]
Beginning balance	18.6	17.9
Costs incurred and charged to expense	6.3	14.9	26.4
Costs paid or otherwise settled	(13.7)	(14.2)
Ending balance	11.2	18.6	17.9
Other Costs
Restructuring Reserve [Roll Forward]
Beginning balance	1.7	3.7
Costs incurred and charged to expense	6.7	8.2	12.3
Costs paid or otherwise settled	(7.3)	(10.2)
Ending balance	$ 1.1	$ 1.7	$ 3.7