RESTRUCTURING CHARGES - Restructuring and Related Charges Activity (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Restructuring Reserve [Roll Forward]
Charges incurred during period	$ 24.8
Revlon 2020 Restructuring Plan
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	34.4
Revlon 2020 Restructuring Plan | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Charges incurred during period	25.6
Charges incurred through end of period	25.6
Revlon 2020 Restructuring Plan | Other Costs
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	0.0
Revlon 2020 Restructuring Plan | Total Restructuring Charges
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	25.6
Revlon 2020 Restructuring Plan | Leases
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	8.6
Revlon 2020 Restructuring Plan | Other Related Charges
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	0.2
Revlon 2020 Restructuring Plan | Accelerated Rent Expense, Abandoned Leases
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	3.5
Revlon 2020 Restructuring Plan | Disposal of Leasehold Improvements and Other Equipment
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	3.0
Revlon 2020 Restructuring Plan | Restructuring Related Rent Expense
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	1.2
Revlon 2020 Restructuring Plan | Disposal of Leasehold Improvements and Other Equipment, Abandoned Leases
Restructuring Reserve [Roll Forward]
Charges incurred through end of period	0.9
2018 Optimization Restructuring Program
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	39.5
Charges incurred during period	0.3
Charges incurred through end of period	39.8
2018 Optimization Restructuring Program | Employee Severance and Other Personnel Benefits
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	20.3
Charges incurred during period	(0.4)
Charges incurred through end of period	19.9
2018 Optimization Restructuring Program | Other Costs
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	0.3
Charges incurred during period	0.0
Charges incurred through end of period	0.3
2018 Optimization Restructuring Program | Total Restructuring Charges
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	20.6
Charges incurred during period	(0.4)
Charges incurred through end of period	20.2
2018 Optimization Restructuring Program | Inventory Adjustments
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	4.9
Charges incurred during period	0.0
Charges incurred through end of period	4.9
2018 Optimization Restructuring Program | Other Related Charges
Restructuring Reserve [Roll Forward]
Charges incurred through beginning of period	14.0
Charges incurred during period	0.7
Charges incurred through end of period	$ 14.7