GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Jan. 04, 2021	Jan. 06, 2020	Mar. 31, 2021	Jun. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Cost			$ 5,358.7	$ 5,059.2
Accumulated Amortization			(1,869.9)	(1,657.0)
Accumulated Impairment			(25.6)	(25.6)
Net			3,463.2	3,376.6
License agreements and collaboration agreements
Finite-Lived Intangible Assets [Line Items]
Cost			4,147.5	3,861.2
Accumulated Amortization			(1,173.4)	(1,021.1)
Accumulated Impairment			(19.6)	(19.6)
Net			2,954.5	2,820.5
License agreements and collaboration agreements | King Kylie
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 649.0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost			793.2	786.1
Accumulated Amortization			(471.2)	(427.3)
Accumulated Impairment			(5.5)	(5.5)
Net			316.5	353.3
Customer relationships | King Kylie
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired		$ 27.0
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost			330.1	325.7
Accumulated Amortization			(166.2)	(154.0)
Accumulated Impairment			(0.5)	(0.5)
Net			163.4	171.2
Product formulations and technology
Finite-Lived Intangible Assets [Line Items]
Cost			87.9	86.2
Accumulated Amortization			(59.1)	(54.6)
Accumulated Impairment			0.0	0.0
Net			$ 28.8	$ 31.6
Collaboration agreement | KKW Beauty
Finite-Lived Intangible Assets [Line Items]
Intangible assets acquired	$ 180.6