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Derivative Instruments - Narrative (Details)
$ in Millions, ₩ in Billions
1 Months Ended 12 Months Ended
May 31, 2020
USD ($)
Nov. 30, 2018
USD ($)
Nov. 30, 2018
KRW (₩)
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Mar. 31, 2022
May 31, 2018
Feb. 29, 2012
Derivatives, Fair Value [Line Items]                  
Range of durations of foreign currency forward contracts       12 months          
Interest rate on senior notes       3.625%          
Net gains (losses) of other income (expense) related to foreign currency forward contracts       $ (34.7) $ 43.3 $ 30.1      
Net investment hedge                  
Derivatives, Fair Value [Line Items]                  
Derivative qualifying as hedge gain (loss), excluded component, after tax         (3.6)        
Samsung Bioepis                  
Derivatives, Fair Value [Line Items]                  
Ownership percentage before additional purchase transaction               5.00%  
Ownership percentage             49.90%   15.00%
Payments to increase investment in Samsung Bioepis   $ 676.6 ₩ 759.5            
Designated as Hedging Instrument                  
Derivatives, Fair Value [Line Items]                  
Derivative, notional amount       1,715.5 2,126.8        
Not designated as hedging instrument                  
Derivatives, Fair Value [Line Items]                  
Derivative, notional amount       1,238.8 1,268.0        
Foreign Exchange Forward                  
Derivatives, Fair Value [Line Items]                  
Unrealized gain (loss) on derivative instruments       8.6 53.8 $ (212.5)      
Foreign Exchange Forward | Net investment hedge                  
Derivatives, Fair Value [Line Items]                  
Unrealized gain (loss) on derivative instruments         $ 10.6        
Interest rate swap | Interest Expense                  
Derivatives, Fair Value [Line Items]                  
Gain (loss) on derivative instruments, net, pretax $ 3.3                
Interest rate swap | Designated as Hedging Instrument                  
Derivatives, Fair Value [Line Items]                  
Derivative, notional amount       $ 675.0          
Minimum                  
Derivatives, Fair Value [Line Items]                  
Range of durations of foreign currency forward contracts       1 month 1 month        
Maximum                  
Derivatives, Fair Value [Line Items]                  
Range of durations of foreign currency forward contracts       12 months 15 months