GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Dec. 31, 2023	Jun. 30, 2023
Finite-Lived Intangible Assets [Line Items]
Cost	$ 4,954.7	$ 4,905.4
Accumulated Amortization	(2,147.0)	(2,032.6)
Accumulated Impairment	(25.6)	(25.6)
Net	2,782.1	2,847.2
License agreements and collaboration agreements
Finite-Lived Intangible Assets [Line Items]
Cost	3,798.8	3,756.2
Accumulated Amortization	(1,372.5)	(1,282.6)
Accumulated Impairment	(19.6)	(19.6)
Net	2,406.7	2,454.0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	755.3	750.6
Accumulated Amortization	(522.4)	(505.9)
Accumulated Impairment	(5.5)	(5.5)
Net	227.4	239.2
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	314.1	313.0
Accumulated Amortization	(187.5)	(180.6)
Accumulated Impairment	(0.5)	(0.5)
Net	126.1	131.9
Product formulations and technology
Finite-Lived Intangible Assets [Line Items]
Cost	86.5	85.6
Accumulated Amortization	(64.6)	(63.5)
Accumulated Impairment	0.0	0.0
Net	$ 21.9	$ 22.1