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Income Taxes - Narrative (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Dec. 31, 2023
USD ($)
jurisdiction
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
jurisdiction
Dec. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Operating Loss Carryforwards [Line Items]            
Tax credit carryforward $ 1,136.0   $ 1,136.0      
Capital loss, foreign tax and other credit carryforwards $ 1,136.0   1,136.0 $ 3.5    
Estimated net future reductions in tax associated with incentives granted     $ 1,154.6 5.7 $ 8.6  
Tax from earnings in foreign country         1.6  
Number of significant foreign jurisdictions | jurisdiction 13   13      
Unrecognized tax benefits $ 51.2   $ 51.2 46.1 41.9 $ 76.2
Unrecognized tax benefits that would impact effective tax rate 37.1   37.1 29.5    
Interest and penalties recognized     4.3 2.6 $ (4.5)  
Interest and penalties accrued 16.3   16.3 $ 12.0    
Minimum            
Operating Loss Carryforwards [Line Items]            
Possible decrease in unrecognized tax benefits 7.1   7.1      
Maximum            
Operating Loss Carryforwards [Line Items]            
Possible decrease in unrecognized tax benefits 27.1   27.1      
U.S. State            
Operating Loss Carryforwards [Line Items]            
Operating loss carryforwards 20.3   20.3      
Foreign Tax Authority            
Operating Loss Carryforwards [Line Items]            
Operating loss carryforwards $ 390.9   390.9      
Switzerland            
Operating Loss Carryforwards [Line Items]            
Tax incentives granted, period (in years) 10 years          
Tax credit carryforward $ 1,353.0   1,353.0      
Foreign deferred tax liabilities 204.0   204.0      
Capital loss, foreign tax and other credit carryforwards 1,149.0   1,149.0      
recorded valuation allowance $ 318.0   318.0      
Switzerland | Scenario, Forecast            
Operating Loss Carryforwards [Line Items]            
Estimated net future reductions in tax associated with incentives granted   $ 831.0        
Brazil            
Operating Loss Carryforwards [Line Items]            
Change in valuation allowance     $ 223.0