GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2019	Jun. 30, 2019
Finite-Lived Intangible Assets [Line Items]
Cost	$ 6,226.0	$ 6,590.5
Accumulated Amortization	(1,934.9)	(1,872.4)
Accumulated Impairment	(25.6)	(25.6)
Net	4,265.5	4,692.5
License agreements
Finite-Lived Intangible Assets [Line Items]
Cost	3,209.5	3,245.3
Accumulated Amortization	(937.7)	(874.5)
Accumulated Impairment	(19.6)	(19.6)
Net	2,252.2	2,351.2
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	1,746.1	1,951.6
Accumulated Amortization	(622.0)	(642.0)
Accumulated Impairment	(5.5)	(5.5)
Net	1,118.6	1,304.1
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	914.1	1,039.5
Accumulated Amortization	(233.6)	(229.4)
Accumulated Impairment	(0.5)	(0.5)
Net	680.0	809.6
Product formulations and technology
Finite-Lived Intangible Assets [Line Items]
Cost	356.3	354.1
Accumulated Amortization	(141.6)	(126.5)
Accumulated Impairment	0.0	0.0
Net	$ 214.7	$ 227.6