GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Goodwill [Roll Forward]
Gross balance	$ 9,196.3	$ 2,853.5
Accumulated impairments	(640.8)	(640.8)	$ (640.8)
Beginning balance	8,555.5	2,212.7
Acquisitions	70.8	5,816.8
Goodwill, Purchase Accounting Adjustments	26.5	444.7
Foreign currency translation	(33.4)	83.7
Disposition	(12.3)	(2.4)
Gross balance	9,247.9	9,196.3
Accumulated impairments	(640.8)	(640.8)
Ending balance	8,607.1	8,555.5
Operating Segments | Luxury
Goodwill [Roll Forward]
Gross balance	3,496.8	1,294.5
Accumulated impairments	(403.7)	(403.7)	(403.7)
Beginning balance	3,093.1	890.8
Acquisitions	68.2	1,866.1
Goodwill, Purchase Accounting Adjustments	(185.0)	308.0
Foreign currency translation	(10.3)	28.2
Disposition	(3.1)	0.0
Gross balance	3,366.6	3,496.8
Accumulated impairments	(403.7)	(403.7)
Ending balance	2,962.9	3,093.1
Operating Segments | Consumer Beauty
Goodwill [Roll Forward]
Gross balance	4,732.0	1,288.2
Accumulated impairments	(237.1)	(237.1)	(237.1)
Beginning balance	4,494.9	1,051.1
Acquisitions	0.0	3,285.2
Goodwill, Purchase Accounting Adjustments	228.8	124.7
Foreign currency translation	(24.1)	36.3
Disposition	(9.2)	(2.4)
Gross balance	4,927.5	4,732.0
Accumulated impairments	(237.1)	(237.1)
Ending balance	4,690.4	4,494.9
Operating Segments | Professional Beauty
Goodwill [Roll Forward]
Gross balance	967.5	270.8
Accumulated impairments	0.0	0.0	$ 0.0
Beginning balance	967.5	270.8
Acquisitions	2.6	665.5
Goodwill, Purchase Accounting Adjustments	(17.3)	12.0
Foreign currency translation	1.0	19.2
Disposition	0.0	0.0
Gross balance	953.8	967.5
Accumulated impairments	0.0	0.0
Ending balance	$ 953.8	$ 967.5