XML 211 R77.htm IDEA: XBRL DOCUMENT v3.25.0.1
Savings, Pension and Other Postretirement Employee Benefit Plans - Investments at Fair Value for Company Sponsored Pension Benefit Plans Within Fair Value Hierarchy (Details) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 1.7 $ 1.9
Investments    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 214.4 231.1
Common Collective Trust    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 212.7 229.2
Fair Value, Inputs, Level 1 | Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1.7 1.9
Fair Value, Inputs, Level 1 | Investments    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 1.7 1.9
Fair Value, Inputs, Level 1 | Common Collective Trust    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0.0 0.0
Fair Value Measured at Net Asset Value Per Share | Cash and cash equivalents    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 0.0 0.0
Fair Value Measured at Net Asset Value Per Share | Investments    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets 212.7 229.2
Fair Value Measured at Net Asset Value Per Share | Common Collective Trust    
Defined Benefit Plan Disclosure [Line Items]    
Fair value of plan assets $ 212.7 $ 229.2