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Pensions
 3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Pensions PENSIONS
The following table summarizes the components of Net periodic pension benefit: 
 U.S. Benefit PlanNon-U.S. Benefit Plan
 Three Months Ended
March 31,		Three Months Ended
March 31,
(in millions)2021202020212020
Service cost$— $— $0.1 $0.1 
Interest cost1.2 1.4 0.2 0.3 
Amortization of actuarial loss1.0 0.8 0.2 0.1 
Amortization of prior service cost— — 0.0 0.0 
Expected return on plan assets(2.4)(2.3)(0.5)(0.5)
Net periodic pension benefit$(0.2)$(0.1)$— $— 
The items that comprise Net periodic pension benefit, other than service cost, are included as a component of Other (income) expense, net on the Condensed Consolidated Statements of Operations.