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Pension and Postretirement Benefits
 9 Months Ended
Sep. 30, 2025
Retirement Benefits [Abstract]  
Pension and Postretirement Benefits Pension and Postretirement Benefits
The components of pension and other postretirement benefits income, net recognized for the three and nine months ended September 30, 2025 and 2024 were as follows:

Pension BenefitsPostretirement Benefits
Three Months Ended September 30,Nine Months Ended September 30,Three Months Ended September 30,Nine Months Ended September 30,
 20252024202520242025202420252024
(In millions)
Service costs$1.2 $1.0 $3.1 $3.3 $— $— $— $— 
Interest costs0.9 0.9 2.6 2.6 — 0.1 0.1 0.2 
Expected return on plan assets(2.9)(2.7)(8.5)(8.0)— (0.1)(0.1)(0.2)
Recognized net actuarial loss0.2 0.6 0.5 1.4 0.1 0.1 0.1 0.2 
Net periodic benefit (income) expense$(0.6)$(0.2)$(2.3)$(0.7)$0.1 $0.1 $0.1 $0.2