ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES - Components of Accrued Expenses and Other (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Schedule of Accrued Liabilities [Line Items]
Advertising, marketing and promotional costs	$ 99.0	$ 96.3
Sales returns and allowances	74.9	95.5
Taxes	54.2	41.8
Compensation and related benefits	44.4	50.1
Interest	24.0	29.6
Freight and distribution costs	17.6	9.5
Professional services and insurance	14.7	18.6
Short-term lease liability	14.3	16.6
Restructuring reserve	3.5	13.8
Software	2.2	3.1
Other	51.7	46.0
Total	400.5	420.9
Revlon Consumer Products Corporation
Schedule of Accrued Liabilities [Line Items]
Taxes	57.3	44.8
Total	$ 403.7	$ 423.2