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Pension and Other Postretirement Benefits Pension Narrative (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Net benefit liabilities $ 71.2 $ 111.6  
Net projected benefit obligations, current $ 2.9 $ 5.1  
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets 6.44% 6.88% 7.10%
Liability, Defined Benefit Plan, Noncurrent $ 68.3 $ 106.5  
Employer contributions 16.0 20.9  
Defined Benefit Plan, Expected Return (Loss) on Plan Assets 29.4 31.6 $ 31.4
Defined Benefit Plan, Plan Assets, Amount 503.9 469.9 471.2
Interest cost $ 31.0 $ 29.8 31.2
Savings Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent 6.00% 5.00%  
Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets 6.62%    
Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets   6.44%  
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Net benefit liabilities $ 61.1 $ 101.4  
Net projected benefit obligations, current 2.0 4.1  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year 19.2    
Liability, Defined Benefit Plan, Noncurrent 59.1 97.3  
Employer contributions 16.0 20.9  
Defined Benefit Plan, Plan Assets, Amount 503.9 469.9 471.2
Interest cost 30.5 29.3  
Other Postretirement Benefits Plans And Supplemental Employee Retirement Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Net benefit liabilities 10.1 10.2  
Net projected benefit obligations, current 0.9 1.0  
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year 0.9    
Liability, Defined Benefit Plan, Noncurrent 9.2 9.2  
Employer contributions 0.0 0.0  
Defined Benefit Plan, Plan Assets, Amount 0.0 0.0 $ 0.0
Interest cost $ 0.5 $ 0.5