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Pension and Other Benefit Programs (Schedule of Net Funded Status) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligations as of beginning of period $ 319.2 $ 356.5  
Service cost 2.3 2.5  
Interest cost 16.6 16.9  
Actuarial loss (gain) 2.8 (25.1)  
Benefits paid (16.9) (31.6)  
Benefit obligations as of end of period 324.0 319.2 $ 356.5
Fair value of plan assets as of beginning of period 381.9 413.4  
Actual return on plan assets 30.6 (2.4)  
Employer contributions 3.0 2.5  
Benefits paid (16.9) (31.6)  
Fair value of plan assets as of end of period 398.6 381.9 413.4
Funded status 74.6 62.7  
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Benefit obligations as of beginning of period 39.4 47.6  
Interest cost 2.0 2.2 2.9
Plan participant contributions 1.4 1.5  
Actuarial loss (gain) (0.3) (5.0)  
Benefits paid (6.3) (6.9)  
Benefit obligations as of end of period 36.2 39.4 47.6
Fair value of plan assets as of beginning of period 0.0 0.0  
Employer contributions 4.9 5.4  
Plan participant contributions 1.4 1.5  
Benefits paid (6.3) (6.9)  
Fair value of plan assets as of end of period 0.0 0.0 $ 0.0
Funded status $ (36.2) $ (39.4)