v3.26.1
GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Schedule of intangible assets subject to amortization (Details) - USD ($)
$ in Millions
Mar. 31, 2026
Jun. 30, 2025
Finite-Lived Intangible Assets [Line Items]    
Cost $ 4,877.7 $ 4,937.8
Accumulated Amortization (2,620.2) (2,458.4)
Accumulated Impairment (25.6) (25.6)
Net 2,231.9 2,453.8
License agreements and collaboration agreements    
Finite-Lived Intangible Assets [Line Items]    
Cost 3,711.8 3,765.8
Accumulated Amortization (1,758.9) (1,614.9)
Accumulated Impairment (19.6) (19.6)
Net 1,933.3 2,131.3
Customer relationships    
Finite-Lived Intangible Assets [Line Items]    
Cost 761.9 766.0
Accumulated Amortization (578.0) (568.9)
Accumulated Impairment (5.5) (5.5)
Net 178.4 191.6
Trademarks    
Finite-Lived Intangible Assets [Line Items]    
Cost 316.5 318.2
Accumulated Amortization (216.1) (208.4)
Accumulated Impairment (0.5) (0.5)
Net 99.9 109.3
Product formulations and technology    
Finite-Lived Intangible Assets [Line Items]    
Cost 87.5 87.8
Accumulated Amortization (67.2) (66.2)
Accumulated Impairment 0.0 0.0
Net $ 20.3 $ 21.6