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Pension and Other Postemployment Benefits (Tables)

12 Months Ended

Dec. 31, 2020

The components of net periodic benefit expense were (in millions):


	Year Ended December 31,
	2020		2019		2018
Service cost	$	7.5	$	7.9	$	7.7
Interest cost	7.7		8.2		7.9
Expected return on plan assets	(2.6)		(3.5)		(2.8)
Amortization of prior service cost	0.8		0.8		4.4
Amortization of actuarial loss	6.7		2.5		6.9
	$	20.1	$	15.9	$	24.1

The weighted average assumptions used to determine net periodic benefit expense were:


	Year Ended December 31,
	2020		2019		2018
Discount rate	2.4	%	2.9	%	3.6	%
Compensation increases	2.5	%	2.5	%	2.5	%
Expected return on plan assets	5.1	%	5.5	%	5.8	%

The change in benefit obligation and fair value of plan assets of the defined benefit pension plans were (in millions):


	December 31,
	2020		2019
Benefit Obligation:
January 1	$	293.5	$	258.4
Service cost	7.5		7.9
Interest cost	7.7		8.2
Amendments, curtailments and settlements	(0.2)		1.4
Actuarial loss	17.2		28.8
Benefits paid	(13.5)		(9.2)
Foreign currency translation	(2.9)		(2.0)
December 31	$	309.3	$	293.5
Fair Value of Plan Assets:
January 1	$	64.3	$	57.4
Actual return on plan assets	5.0		8.7
Employer contributions	9.1		7.1
Benefits paid	(13.5)		(9.2)

Foreign currency translation and other	(1.6)		0.3
December 31	$	63.3	$	64.3

The funded status and balance sheet classification of the defined benefit pension plans were (in millions):

Plans with benefit obligations in excess of plan assets were (in millions):

The weighted average assumptions used to determine the benefit obligation were:

At December 31, 2020, the estimated benefits expected to be paid over the next 10 years are (in millions):

The components of net periodic benefit expense were (in millions):


	Year Ended December 31,
	2020		2019		2018
Service cost	$	4.6	$	4.4	$	4.7
Interest cost	3.4		4.3		3.6
Amortization of prior service cost	4.3		4.5		3.5
Amortization of actuarial loss	2.1		0.9		1.8
	$	14.4	$	14.1	$	13.6

The weighted average assumptions used to determine net periodic benefit expense were:

At December 31, 2020 and 2019, the benefit obligation and balance sheet classification were (in millions):

The weighted average assumptions used to determine the benefit obligation were:

At December 31, 2020, the estimated benefits expected to be paid over the next 10 years are (in millions):