v3.26.1
Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Intangible assets subject to amortization (finite-lived)    
Gross $ 1,353.3 $ 1,363.4
Accumulated Amortization (657.8) (624.3)
Net 695.5 739.1
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 1,612.4 1,622.7
Finite and Indefinite lived intangible assets, gross 2,965.7 2,986.1
Total Accumulated Amortization (657.8) (624.3)
Total intangible assets 2,307.9 2,361.8
Crop Protection Brands    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 1,241.3 1,241.3
Brands    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 359.4 369.3
In-process research & development    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 11.7 12.1
Customer relationships    
Intangible assets subject to amortization (finite-lived)    
Gross 1,146.3 1,155.4
Accumulated Amortization (558.5) (534.8)
Net 587.8 620.6
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (558.5) (534.8)
Patents    
Intangible assets subject to amortization (finite-lived)    
Gross 0.6 0.6
Accumulated Amortization (0.6) (0.6)
Net 0.0 0.0
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (0.6) (0.6)
Brands    
Intangible assets subject to amortization (finite-lived)    
Gross 70.0 68.2
Accumulated Amortization (35.1) (29.1)
Net 34.9 39.1
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (35.1) (29.1)
Purchased and licensed technologies    
Intangible assets subject to amortization (finite-lived)    
Gross 134.0 136.8
Accumulated Amortization (61.7) (57.9)
Net 72.3 78.9
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (61.7) (57.9)
Other intangibles    
Intangible assets subject to amortization (finite-lived)    
Gross 2.4 2.4
Accumulated Amortization (1.9) (1.9)
Net 0.5 0.5
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization $ (1.9) $ (1.9)