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EMPLOYEE BENEFIT PLANS (Tables)
3 Months Ended
Mar. 31, 2020
Pension Plan  
Defined Benefit Plans and Other Postretirement Benefit Plans  
Schedule of Aggregated Net Periodic Benefit Cost and Other Benefit Cost
The following table sets forth the aggregated net periodic benefit cost for all pension plans for the first quarters ended March 31, 2020 and March 31, 2019:
(In millions)Pension BenefitsOther Benefits
First Quarter EndedFirst Quarter Ended
 March 31, 2020March 31, 2019March 31, 2020March 31, 2019
Service cost$0.1  $0.2  $—  $—  
Interest cost1.1  1.5  0.1  0.1  
Expected return on assets(1.7) (2.0) —  —  
Amortization of:
Prior service cost—  —  —  —  
Actuarial loss0.9  0.6  —  —  
Settlement cost—  —  —  —  
Net periodic benefit cost$0.4  $0.3  $0.1  $0.1