v3.26.3
Intangible Assets - Schedule of Intangible Assets (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Intangible assets subject to amortization (finite-lived)    
Gross $ 1,349.9 $ 1,363.4
Accumulated Amortization (674.6) (624.3)
Net 675.3 739.1
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 1,320.6 1,622.7
Finite and Indefinite lived intangible assets, gross 2,670.5 2,986.1
Total Accumulated Amortization (674.6) (624.3)
Total intangible assets 1,995.9 2,361.8
Crop Protection Brands    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 953.8 1,241.3
Brands    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 355.2 369.3
In-process research & development    
Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets 11.6 12.1
Customer relationships    
Intangible assets subject to amortization (finite-lived)    
Gross 1,143.8 1,155.4
Accumulated Amortization (571.3) (534.8)
Net 572.5 620.6
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (571.3) (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 69.8 68.2
Accumulated Amortization (37.0) (29.1)
Net 32.8 39.1
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (37.0) (29.1)
Purchased and licensed technologies    
Intangible assets subject to amortization (finite-lived)    
Gross 133.3 136.8
Accumulated Amortization (63.8) (57.9)
Net 69.5 78.9
Indefinite-lived Intangible Assets [Line Items]    
Total Accumulated Amortization (63.8) (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)