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Employee Benefit Plans and Other Postretirement Benefit Plans Narrative (Details) - USD ($)
$ in Millions
Sep. 30, 2025
Jan. 01, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]      
Liability, Defined Benefit Pension Plan, Noncurrent $ 77.6   $ 78.3
Liability, Other Postretirement Defined Benefit Plan, Noncurrent $ 264.0   $ 265.3
Pension Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year   $ 1.1  
Other Postretirement Benefits Plan [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Expected Future Employer Contributions, Remainder of Fiscal Year   $ 11.6