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Fair Value Measurements (Details) - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Fair value of long-term debt $ 360.9 $ 687.2    
Long-term debt, net of debt issuance costs 372.8 395.6    
Long-term Debt, Current Maturities 0.0 274.7    
Foreign currency forward contracts, gross notional value 1,810.0 2,610.0    
Foreign currency forward contracts, net notional value 1,020.0 1,510.0    
Deferred compensation plan, contra-equity, shares held in trust 9.8 5.2    
Investments, Fair Value Disclosure 794.9 639.6 $ 340.3 $ 328.6
Long-term senior notes, 4.4%, due November 2022 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Unamortized Debt Issuance Expense 0.0 0.3    
Foreign Exchange Contract [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Derivative Asset, Fair Value, Gross Asset 7.7 19.2    
Derivative Asset, Fair Value, Gross Liability 4.0 3.3    
Derivative Liability, Fair Value, Gross Asset 1.6 0.2    
Derivative Liability, Fair Value, Gross Liability 6.4 1.0    
Long-Term Senior Notes [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Unamortized Debt Issuance Expense 1.2 1.4    
Fair Value, Recurring [Member] | Fair Value Measured at Net Asset Value Per Share [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Investments, Fair Value Disclosure 284.6 251.6    
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Foreign currency forward contract, current asset amount 3.7 15.9    
Foreign currency forward contract, current liability amount 4.8 0.8    
Deferred compensation plan assets 517.9 528.8    
Deferred compensation plan liabilities 485.4 513.0    
Investments, Fair Value Disclosure $ 0.0 $ 0.0