GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of Changes in the Carrying Amount of Indefinite-lived Other Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Indefinite-lived Intangible Assets [Roll Forward]
Gross beginning balance	$ 1,889.5	$ 1,895.7
Accumulated impairments	(944.9)	(944.9)
Net beginning balance	944.6	950.8
Foreign currency translation	29.2	(6.2)
Impairment charges	(212.8)	0.0	$ 0.0
Gross ending balance	1,918.7	1,889.5	1,895.7
Accumulated impairments	(1,157.7)	(944.9)	(944.9)
Net ending balance	761.0	944.6	950.8
Trademarks
Indefinite-lived Intangible Assets [Roll Forward]
Gross beginning balance	1,889.5	1,895.7
Accumulated impairments	(944.9)	(944.9)
Net beginning balance	944.6	950.8
Foreign currency translation	29.2	(6.2)
Impairment charges	(212.8)
Gross ending balance	1,918.7	1,889.5	1,895.7
Accumulated impairments	(1,157.7)	(944.9)	(944.9)
Net ending balance	$ 761.0	$ 944.6	$ 950.8