INCOME TAXES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Line Items]
Provision (benefit) for income taxes	$ 1.9	$ (2.1)	$ (45.2)	$ (3.2)
Decrease (increase) in benefit for income taxes	4.0		$ (42.0)
Valuation allowance assumption, period of taxable loss			3 years
Revlon Consumer Products Corporation
Income Tax Disclosure [Line Items]
Provision (benefit) for income taxes	2.3	$ (1.8)	$ (44.2)	$ (2.4)
Decrease (increase) in benefit for income taxes	$ 4.1		$ (41.8)