INCOME TAXES (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021
Income Tax Disclosure [Abstract]
Income tax expense	$ 29.9	$ 17.3	$ 65.5	$ 23.4
Increase in income tax expense	$ 42.1		42.1
Book impairment loss			$ 60.4