LEASES - Cash Flow (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2023	Apr. 30, 2022	Apr. 30, 2023	Apr. 30, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows used for operating liabilities	$ 16.1	$ 17.0	$ 31.1	$ 34.1
Financing cash flows used for finance leases	1.0	0.3	1.7	0.6
Leased assets obtained in exchange for new lease liabilities:
Leased assets obtained in exchange for new operating lease liabilities	42.5	4.3	47.2	12.0
Leased assets obtained in exchange for new finance lease liabilities	$ 0.0	$ 0.0	$ 33.7	$ 0.3