MANDATORILY REDEEMABLE FINANCIAL INTERESTS AND REDEEMABLE NONCONTROLLING INTERESTS - Redeemable Noncontrolling Interests (Details) - USD ($) $ in Millions	Sep. 16, 2019	Dec. 31, 2019	Jun. 30, 2019
Redeemable Noncontrolling Interest [Line Items]
Non-cash redeemable noncontrolling interest for business combinations		$ 98.6	$ 451.8
Foundation, LLC
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	40.70%
Redeemable noncontrolling interest, amount derecognized	$ 360.4
Younique, LLC
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners	40.70%
Non-cash redeemable noncontrolling interest for business combinations			365.3
Coty Inc.
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by parent	59.30%
United Arab Emirates Subsidiary
Redeemable Noncontrolling Interest [Line Items]
Ownership percentage by noncontrolling owners		25.00%
Middle East Subsidiary
Redeemable Noncontrolling Interest [Line Items]
Non-cash redeemable noncontrolling interest for business combinations		$ 98.6	$ 86.5