PENSION AND POST-RETIREMENT BENEFITS - Components of Net Periodic Benefit Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net periodic benefit (income) costs:
Lump sum settlement charge	$ 20.7
Net periodic benefit (income) costs		$ (0.6)	$ 18.8	$ (5.4)
Pension Plans [Member]
Net periodic benefit (income) costs:
Service cost		0.5	0.7	0.8
Interest cost		20.7	28.6	30.1
Expected return on plan assets		(31.0)	(40.3)	(41.3)
Amortization of actuarial loss		8.8	8.4	4.5
Lump sum settlement charge		0.0	20.7	0.0
Other pension settlements charge		0.0	0.3	0.0
Net periodic benefit (income) costs, before allocation		(1.0)	18.4	(5.9)
Portion allocated to Revlon Holdings		(0.1)	(0.1)	(0.1)
Net periodic benefit (income) costs		(1.1)	18.3	(6.0)
Other Post-Retirement Benefit Plans [Member]
Net periodic benefit (income) costs:
Service cost		0.0	0.0	0.0
Interest cost		0.4	0.5	0.5
Expected return on plan assets		0.0	0.0	0.0
Amortization of actuarial loss		0.2	0.1	0.1
Lump sum settlement charge		0.0	0.0	0.0
Other pension settlements charge		0.0	0.0	0.0
Net periodic benefit (income) costs, before allocation		0.6	0.6	0.6
Portion allocated to Revlon Holdings		(0.1)	(0.1)	0.0
Net periodic benefit (income) costs		$ 0.5	$ 0.5	$ 0.6