INCOME TAXES (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Apr. 30, 2022	Apr. 30, 2021	Apr. 30, 2022	Apr. 30, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate		28.00%	27.30%	25.70%	26.90%
Provisions for taxes		$ 19.0	$ 11.7	$ 43.2	$ 38.9
Income tax benefit related to change in tax reserves				3.4
Social security tax, employer, deferral, CARES Act		$ 66.0		$ 66.0		$ 132.0
Social security tax, employer, payment, CARES Act	$ 66.0