Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2021

Defined Benefit Plan Disclosure [Line Items]

Net periodic benefit cost for the Company's retirement benefit plans

The following table sets forth the net periodic benefit cost for the Company’s defined benefit pension plans. The amounts for the three and nine months ended September 30, 2021 are based on calculations prepared by the Company's actuaries and represent the Company’s best estimate of that period’s proportionate share of the amounts to be recorded for the year ending December 31, 2021.


	U.S. Plans				International Plans				Total
	Three Months Ended September 30,				Three Months Ended September 30,				Three Months Ended September 30,
	2021		2020		2021		2020		2021		2020
Components of net periodic benefit cost (credit):
Service cost	$	2.4	$	2.7	$	0.5	$	0.5	$	2.9	$	3.2
Interest cost	4.3		5.2		1.1		1.4		5.4		6.6
Expected return on plan assets	(5.5)		(6.3)		(2.5)		(2.2)		(8.0)		(8.5)
Amortization of prior service cost	0.4		0.4		—		—		0.4		0.4
Recognition of net actuarial losses (gains)	3.9		(12.8)		—		—		3.9		(12.8)
Curtailment loss	—		0.9		—		—		—		0.9
Net periodic benefit cost (credit)	$	5.5	$	(9.9)	$	(0.9)	$	(0.3)	$	4.6	$	(10.2)


	U.S. Plans				International Plans				Total
	Nine Months Ended September 30,				Nine Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020		2021		2020
Components of net periodic benefit cost (credit):
Service cost	$	7.2	$	8.1	$	1.5	$	1.3	$	8.7	$	9.4
Interest cost	13.2		15.7		3.3		4.2		16.5		19.9
Expected return on plan assets	(17.7)		(19.0)		(7.6)		(6.5)		(25.3)		(25.5)
Amortization of prior service cost	1.0		1.2		0.1		0.1		1.1		1.3
Recognition of net actuarial losses (gains)	8.3		(4.0)		—		—		8.3		(4.0)
Curtailment loss	—		0.9		—		—		—		0.9
Net periodic benefit cost (credit)	$	12.0	$	2.9	$	(2.7)	$	(0.9)	$	9.3	$	2.0