REVLON, INC. BASIC AND DILUTED EARNINGS (LOSS) PER COMMON SHARE - Components of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Numerator:
Loss from operations, net of taxes	$ (67.0)	$ (96.0)
Net (loss) income	$ (67.0)	$ (96.0)
Denominator:
Weighted-average common shares outstanding - Basic (in shares)	54,262,464	53,653,449
Effect of dilutive restricted stock and RSUs (in shares)	0	0
Weighted-average common shares outstanding - Diluted (in shares)	54,262,464	53,653,449
Basic and Diluted (loss) earnings per common share:
Basic net loss (in dollars per share)	$ (1.23)	$ (1.79)
Diluted Net loss (in dollars per share)	$ (1.23)	$ (1.79)
Restricted Stock and Restricted Stock Units
Basic and Diluted (loss) earnings per common share:
Unvested restricted stock and RSUs under the Stock Plan (in shares)	822,446	376,812