GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Mar. 31, 2020	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Cost	$ 6,796.3	$ 6,590.5
Accumulated Amortization	(1,995.8)	(1,872.4)
Accumulated Impairment	(25.6)	(25.6)
Net	4,774.9	4,692.5
License agreements
Finite-Lived Intangible Assets [Line Items]
Cost	3,815.7	3,245.3
Accumulated Amortization	(972.4)	(874.5)
Accumulated Impairment	(19.6)	(19.6)
Net	2,823.7	2,351.2
License agreements | King Kylie
Finite-Lived Intangible Assets [Line Items]
Net	649.0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	1,728.4	1,951.6
Accumulated Amortization	(639.8)	(642.0)
Accumulated Impairment	(5.5)	(5.5)
Net	1,083.1	1,304.1
Customer relationships | King Kylie
Finite-Lived Intangible Assets [Line Items]
Net	27.0
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	911.7	1,039.5
Accumulated Amortization	(241.4)	(229.4)
Accumulated Impairment	(0.5)	(0.5)
Net	669.8	809.6
Product formulations and technology
Finite-Lived Intangible Assets [Line Items]
Cost	340.5	354.1
Accumulated Amortization	(142.2)	(126.5)
Accumulated Impairment	0.0	0.0
Net	$ 198.3	$ 227.6