INCOME TAXES - Loss From Operations Before Taxes (Details) - USD ($) $ in Millions	5 Months Ended	7 Months Ended	12 Months Ended
	Dec. 31, 2023	Aug. 12, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Tax Disclosure [Abstract]
Domestic	$ (62.7)	$ 792.7	$ (413.2)	$ (168.3)
Foreign	62.6	655.7	(25.4)	117.6
(Loss) income before taxes	$ (0.1)	$ 1,448.4	$ (438.6)	$ (50.7)