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Defined Benefit Plans
 3 Months Ended
Mar. 31, 2022
Compensation And Retirement Disclosure [Abstract]  
Defined Benefit Plans

11. Defined Benefit Plans

The components of net periodic benefit income for pension benefits for the three months ended March 31, 2022 and 2021 were as follows:

 

(In millions)

 

Three Months Ended March 31,

 

 

 

Pension Benefits

 

 

 

2022

 

 

2021

 

Service cost

 

$

0.1

 

 

$

0.1

 

Interest cost

 

 

6.3

 

 

 

6.0

 

Expected return on plan assets

 

 

(8.8

)

 

 

(8.7

)

Net periodic benefit income

 

$

(2.4

)

 

$

(2.6

)

 

Service cost relates to benefit accruals in an hourly Union defined benefit plan in our Outdoors & Security segment. All other defined benefit pension plans were frozen as of December 31, 2016.