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Employee Benefit Plans (Fair Value of Plan Assets) (Details) - Pension Plans [Member] - USD ($)
$ in Millions
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan, Plan Assets, Amount $ 331.7 $ 402.3 $ 388.2 $ 356.9
Defined Benefit Plan, Cash [Member]        
Actual allocation of plan assets, Fixed income 5.00% 4.90%    
Fixed Income Funds [Member]        
Actual allocation of plan assets, Fixed income 39.70% 39.30%    
US Equity [Member]        
Actual allocation of plan assets, Fixed income 39.10% 35.50%    
Foreign equity [Member]        
Actual allocation of plan assets, Fixed income 16.20% 20.30%    
Fair Value, Inputs, level 2 [Member]        
Defined Benefit Plan, Plan Assets, Amount $ 331.7 $ 402.3    
Fair Value, Inputs, level 2 [Member] | Defined Benefit Plan, Cash [Member]        
Defined Benefit Plan, Plan Assets, Amount 16.6 19.8    
Fair Value, Inputs, level 2 [Member] | Fixed Income Funds [Member]        
Defined Benefit Plan, Plan Assets, Amount 131.6 158.2    
Fair Value, Inputs, level 2 [Member] | US Equity [Member]        
Defined Benefit Plan, Plan Assets, Amount 129.8 142.8    
Fair Value, Inputs, level 2 [Member] | Foreign equity [Member]        
Defined Benefit Plan, Plan Assets, Amount $ 53.7 $ 81.5