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Defined Benefit Plans
 6 Months Ended
Jun. 30, 2019
Compensation And Retirement Disclosure [Abstract]  
Defined Benefit Plans

12.

Defined Benefit Plans

The components of net periodic benefit cost for pension benefits for the six and three months ended June 30, 2019 and 2018 were as follows:

 

(In millions)

 

Six Months Ended June 30,

 

 

Three Months Ended June 30,

 

 

Pension Benefits

 

 

Pension Benefits

 

 

 

 

2019

 

 

2018

 

 

2019

 

 

2018

 

 

Service cost

 

$

0.2

 

 

$

0.3

 

 

$

0.1

 

 

$

0.1

 

 

Interest cost

 

 

16.4

 

 

 

15.3

 

 

 

8.2

 

 

 

7.7

 

 

Expected return on plan assets

 

 

(17.6

)

 

 

(20.5

)

 

 

(8.8

)

 

 

(10.2

)

 

Net periodic benefit income

 

$

(1.0

)

 

$

(4.9

)

 

$

(0.5

)

 

$

(2.4

)

 

 

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