RESTRUCTURING CHARGES - Restructuring and Related Charges by Segment (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2021	Dec. 31, 2020
RGGA Program
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	$ 28.0
Cumulative charges incurred	96.8	$ 68.8
Total Restructuring Charges
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	22.8
Total Restructuring Charges | RGGA Program
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	22.8
Cumulative charges incurred	73.3	$ 50.5
Total Restructuring Charges | RGGA Program | Operating segments
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	22.8
Cumulative charges incurred	73.3
Total Restructuring Charges | RGGA Program | Operating segments | Revlon
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	6.5
Cumulative charges incurred	27.2
Total Restructuring Charges | RGGA Program | Operating segments | Elizabeth Arden
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	8.0
Cumulative charges incurred	17.4
Total Restructuring Charges | RGGA Program | Operating segments | Portfolio
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	3.9
Cumulative charges incurred	17.5
Total Restructuring Charges | RGGA Program | Operating segments | Fragrance
Restructuring Cost and Reserve [Line Items]
Charges incurred during period	4.4
Cumulative charges incurred	$ 11.2