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Defined Benefit Pension Plans and Other Post-Employment Benefit Plans
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Defined Benefit Pension Plans and Other Post-Employment Benefit Plans Defined Benefit Pension Plans and Other Post-Employment Benefit Plans
The following tables show the components of net benefit cost for our defined benefit pension plans for the three months ended March 31, 2024 and 2023:
Three Months Ended
March 31, 2024		Three Months Ended
March 31, 2023
(In millions)U.S.InternationalTotalU.S.InternationalTotal
Components of net periodic benefit cost:
Service cost $— $0.9 $0.9 $— $0.8 $0.8 
Interest cost 1.6 5.1 6.7 1.8 5.2 7.0 
Expected return on plan assets (1.7)(5.8)(7.5)(1.8)(5.3)(7.1)
Amortization of net prior service cost— 0.1 0.1 — 0.1 0.1 
Amortization of net actuarial loss0.4 1.0 1.4 0.4 0.8 1.2 
Net periodic benefit cost0.3 1.3 1.6 0.4 1.6 2.0 
Settlement cost— — — — 0.2 0.2 
Total benefit cost$0.3 $1.3 $1.6 $0.4 $1.8 $2.2 
The following table shows the components of net periodic benefit cost for our other post-employment benefit plans for the three months ended March 31, 2024 and 2023:
Three Months Ended
March 31,
(In millions)20242023
Components of net periodic benefit cost:
Interest cost $0.4 $0.4 
Amortization of net prior service credit and net actuarial gain(0.1)(0.1)
Net periodic benefit cost$0.3 $0.3