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EMPLOYEE RETIREMENT AND POSTRETIREMENT BENEFITS (Tables)
3 Months Ended
Mar. 31, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Pension Cost and Postretirement Cost
Components of net periodic pension cost are as follows:
 
Three Months Ended
March 31,
 20252024
 (In millions)
Service cost$0.1 $0.1 
Interest cost2.7 2.6 
Expected return on plan assets(2.9)(2.7)
Amortization of unrecognized net loss0.1 0.1 
Net periodic pension cost
$— $0.1 

Components of net periodic postretirement cost are as follows:
Three Months Ended
March 31,
 20252024
 (In millions)
Interest cost$0.2 $0.2 
Amortization of unrecognized net gain(0.1)(0.1)
Net periodic postretirement cost$0.1 $0.1