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Pension Benefit Plans
3 Months Ended
Mar. 31, 2021
Retirement Benefits [Abstract]  
Pension Benefit Plans
The components of net periodic benefit cost for pension benefits were as follows (in millions):
For the Three Months Ended March 31,
20212020
Service cost$1.5 $1.4 
Interest cost1.5 1.8 
Expected return on plan assets(2.7)(2.2)
Amortization of prior service cost0.1 — 
Recognized actuarial loss2.1 1.5 
Other(0.2)— 
Settlements and curtailments0.7 — 
Net periodic benefit cost$3.0 $2.5