PENSION AND POST-RETIREMENT BENEFITS - Summary of Amounts Recognized in Respect to Pension Plans and Other Post-retirement Benefit Plans (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Other long-term assets	$ 96.5	$ 97.8
Accrued expenses and other	(387.0)	(432.0)
Pension and other post-retirement benefit liabilities	(84.5)	(147.3)
Accumulated other comprehensive loss, gross	244.1	260.5
Income tax benefit	(51.6)
Portion allocated to Revlon Holdings	(0.5)
Accumulated other comprehensive loss, net	192.0
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Other long-term assets	5.9	6.8
Accrued expenses and other	(8.2)	(6.3)
Pension and other post-retirement benefit liabilities	(74.4)	(135.8)
Pension liabilities subject to compromise	(43.2)	0.0
Total liability	(119.9)	(135.3)
Accumulated other comprehensive loss, gross	242.2	257.6
Income tax benefit	(50.5)	(50.3)
Portion allocated to Revlon Holdings	(0.8)	(0.9)
Accumulated other comprehensive loss, net	190.9	206.4
Other Post-Retirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Other long-term assets	0.0	0.0
Accrued expenses and other	(0.7)	(0.9)
Pension and other post-retirement benefit liabilities	(10.1)	(11.5)
Pension liabilities subject to compromise	0.0	0.0
Total liability	(10.8)	(12.4)
Accumulated other comprehensive loss, gross	1.9	2.9
Income tax benefit	(1.1)	(1.1)
Portion allocated to Revlon Holdings	0.3	0.4
Accumulated other comprehensive loss, net	$ 1.1	$ 2.2