GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Changes in the carrying amount of indefinite-lived other intangible assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Indefinite-lived Intangible Assets [Roll Forward]
Gross balance	$ 3,384.7	$ 1,614.8
Accumulated impairments	(197.8)	(197.8)
Beginning balance	3,186.9	1,417.0
Acquisitions		2,053.8
Measurement period adjustments	(14.8)	(315.0)
Foreign currency translation	14.1	31.1
Gross balance	3,384.0	3,384.7
Accumulated impairments	(197.8)	(197.8)
Ending balance	3,186.2	3,186.9
Operating Segments | Luxury
Indefinite-lived Intangible Assets [Roll Forward]
Gross balance	409.8	401.2
Accumulated impairments	(118.8)	(118.8)
Beginning balance	291.0	282.4
Acquisitions		0.0
Measurement period adjustments	0.0	0.0
Foreign currency translation	4.8	8.6
Gross balance	414.6	409.8
Accumulated impairments	(118.8)	(118.8)
Ending balance	295.8	291.0
Operating Segments | Consumer Beauty
Indefinite-lived Intangible Assets [Roll Forward]
Gross balance	1,696.4	551.5
Accumulated impairments	(75.9)	(75.9)
Beginning balance	1,620.5	475.6
Acquisitions		1,390.0
Measurement period adjustments	0.0	(255.0)
Foreign currency translation	6.7	9.9
Gross balance	1,703.1	1,696.4
Accumulated impairments	(75.9)	(75.9)
Ending balance	1,627.2	1,620.5
Operating Segments | Professional Beauty
Indefinite-lived Intangible Assets [Roll Forward]
Gross balance	1,278.5	662.1
Accumulated impairments	(3.1)	(3.1)
Beginning balance	1,275.4	659.0
Acquisitions		663.8
Measurement period adjustments	(14.8)	(60.0)
Foreign currency translation	2.6	12.6
Gross balance	1,266.3	1,278.5
Accumulated impairments	(3.1)	(3.1)
Ending balance	$ 1,263.2	$ 1,275.4