INCOME TAXES - COMPONENTS OF TAX EXPENSE (BENEFIT) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Tax Disclosure [Abstract]
Current tax expense	$ 14.9	$ 14.1	$ 19.9	$ 50.9
Deferred tax expense	17.3	14.1	88.6	43.5
Total income tax expense	$ 32.2	$ 28.2	$ 108.5	$ 94.4