v3.25.1
Financial Instruments and Risk Management (Narrative) (Details)
€ in Millions, ¥ in Millions, ¥ in Millions, $ in Millions
3 Months Ended
Mar. 31, 2025
USD ($)
Mar. 31, 2024
USD ($)
Apr. 30, 2025
USD ($)
Apr. 30, 2025
CNY (¥)
Mar. 31, 2025
EUR (€)
Mar. 31, 2025
JPY (¥)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
EUR (€)
Dec. 31, 2024
JPY (¥)
Jun. 30, 2024
EUR (€)
Mar. 15, 2024
USD ($)
Derivative [Line Items]                      
Pre-tax net losses on cash flow hedges to be reclassified from AOCE into earnings in next twelve months | $ $ (4.0)                    
Contingent consideration | $ 412.2           $ 556.1        
Biocon Biologics                      
Derivative [Line Items]                      
Gain on equity securities | $ (115.8) $ (46.9)                  
Interest rate swaps                      
Derivative [Line Items]                      
Derivative, notional amount         € 500.0            
Respiratory delivery platform                      
Derivative [Line Items]                      
Contingent consideration | $ 140.5           176.3        
Idorsia Pharmaceuticals Ltd.                      
Derivative [Line Items]                      
Contingent consideration | $ $ 270.0           378.0       $ 345.0
Net Investment Hedging                      
Derivative [Line Items]                      
Notional amount of derivative         2,850.0 ¥ 40,000   € 2,850.0 ¥ 40,000    
Long-term debt         2,850.0 40,000          
Maximum                      
Derivative [Line Items]                      
Derivative, term of contract 18 months                    
2027 Euro Senior Notes | Net Investment Hedging                      
Derivative [Line Items]                      
Notional amount of derivative         850.0     850.0      
Long-term debt         850.0            
2028 Euro Senior Notes | Net Investment Hedging                      
Derivative [Line Items]                      
Notional amount of derivative         750.0     750.0      
Long-term debt         750.0            
2032 Euro Senior Notes | Net Investment Hedging                      
Derivative [Line Items]                      
Notional amount of derivative         1,250.0     1,250.0      
Long-term debt         € 1,250.0            
YEN Term Loan | Net Investment Hedging                      
Derivative [Line Items]                      
Notional amount of derivative | ¥           40,000     ¥ 40,000    
Long-term debt | ¥           40,000          
2020 Euro Senior Notes                      
Derivative [Line Items]                      
Long-term debt | $ $ 266.7           $ 254.4        
Interest rate swaps | Net Investment Hedging                      
Derivative [Line Items]                      
Derivative, notional amount | ¥           ¥ 14,600          
Currency Swap | Net Investment Hedging                      
Derivative [Line Items]                      
Derivative, notional amount               € 500.0   € 600.0  
Currency Swap December 2026 | Net Investment Hedging | Subsequent Event                      
Derivative [Line Items]                      
Derivative, notional amount     $ 200.0 ¥ 1,420              
Currency Swap December 2027 | Net Investment Hedging | Subsequent Event                      
Derivative [Line Items]                      
Derivative, notional amount     $ 100.0 ¥ 695              
Measurement Input, Discount Rate | Contingent consideration | Minimum                      
Derivative [Line Items]                      
Business Combination, Contingent Consideration, Liability, Measurement Input 0.090       0.090 0.090 0.090 0.090 0.090    
Measurement Input, Discount Rate | Contingent consideration | Maximum                      
Derivative [Line Items]                      
Business Combination, Contingent Consideration, Liability, Measurement Input 0.180       0.180 0.180 0.190 0.190 0.190