v3.26.1
Financial Instruments and Risk Management (Effect of Derivative Instruments on the Condensed Consolidated Balance Sheets Fair Values of Derivative Instruments Derivatives Not Designated As Hedging Instrument) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments $ 104.2   $ 104.2   $ 84.2
Fair value of financial instruments 107.5   107.5   169.3
Fair value of financial instruments 101.2   101.2   166.6
Net other comprehensive earnings (loss), before tax (15.4) $ 123.5 (95.7) $ 421.5  
Gains and Losses on Net Investment Hedges          
Derivatives, Fair Value [Line Items]          
Net other comprehensive earnings (loss), before tax     89.9 $ (528.9)  
Not Designated as Hedging Instruments          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 91.2   91.2   77.7
Fair value of financial instruments 79.2   79.2   95.0
Not Designated as Hedging Instruments | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent | Foreign currency forward contracts          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 79.2   79.2   95.0
Not Designated as Hedging Instruments | Balance Sheet Location [Axis]: us-gaap:PrepaidExpenseAndOtherAssetsCurrent | Foreign currency forward contracts          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 91.2   91.2   77.7
Designated as Hedging Instrument          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 13.0   13.0   6.5
Fair value of financial instruments 28.3   28.3   74.3
Designated as Hedging Instrument | Interest rate swaps          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments         50.1
Designated as Hedging Instrument | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent | Foreign exchange forward contracts          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 22.0   22.0   21.5
Designated as Hedging Instrument | Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesNoncurrent | Foreign exchange forward contracts          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments 6.3   6.3   2.7
Designated as Hedging Instrument | Balance Sheet Location [Axis]: us-gaap:PrepaidExpenseAndOtherAssetsCurrent | Foreign exchange forward contracts          
Derivatives, Fair Value [Line Items]          
Fair value of financial instruments $ 13.0   $ 13.0   $ 6.5