RESTRUCTURING CHARGES - Narrative (Details) $ in Millions	1 Months Ended	3 Months Ended	12 Months Ended	13 Months Ended
	Mar. 31, 2020 job_position	Mar. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Mar. 31, 2021 USD ($) job_position
Restructuring Cost and Reserve [Line Items]
Payments for restructuring | $		$ 11.0
Revlon 2020 Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Expected number of positions eliminated | job_position	975
Expected number of current employee positions to be eliminated | job_position	625
Number of open positions eliminated | job_position	350
Number of positions eliminated | job_position				935
Restructuring costs recognized to date | $		76.1	$ 68.8	$ 76.1
Revlon 2020 Restructuring Plan | Total Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Restructuring costs recognized to date | $		55.9	50.5	$ 55.9
Payments for restructuring | $		$ 10.9	$ 51.5