SEGMENT REPORTING - Geographic Data (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues		$ 4,349.1	$ 4,395.2	$ 4,551.6
Long-lived assets		4,910.3	3,944.5	3,720.2
Americas
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[1]	1,663.3	1,696.0	1,703.8
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[2]	2,169.0	2,166.0	2,302.9
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[3]	516.8	533.2	544.9
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues		1,258.9	1,343.1	1,338.6
Long-lived assets		2,688.7	2,713.9	2,921.2
Switzerland
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[4]	629.7	998.8	1,041.5
Long-lived assets		508.0	297.4	143.8
Switzerland | Travel Retail and Export
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[4]	529.1	482.9	497.8
Switzerland | United Kingdom
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[4]	0.0	402.5	415.1
Switzerland | Netherlands
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[4]	74.5	83.2	93.8
Switzerland | Domestic
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues	[4]	26.1	30.2	34.8
Brazil
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets		882.7	1.4	0.2
All Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Net revenues		2,460.5	2,053.3	2,171.5
Long-lived assets		$ 830.9	$ 931.8	$ 655.0

[1] includes North & South America

[2] includes Europe, Middle East and Africa

[3] includes Asia and Australia

[4] The Company’s subsidiaries in Switzerland generate revenues from sales to various countries, from time to time, including the United Kingdom (“U.K.”) and the Netherlands, domestic sales in Switzerland and the Travel Retail and Export business (which sells to a large number of travel outlets, including duty free shops, airlines and other tax-free zones in several countries), as specified separately in the table above. Due to a change in go-to-market strategy for the U.K. from commissionaire to buy and sell distribution, the net revenues for the U.K. are now reported under All other net revenues.