Retirement Benefits (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans

The following tables provide the components of net periodic benefit cost for its major defined benefit plans and its other postretirement plans.

	Pension Benefits
	Three Months Ended September 30,
	2023				2022
	U.S.		Non-U.S.		U.S.		Non-U.S.
Service cost	$	0.1	$	0.3	$	—	$	0.5
Interest cost	0.1		0.6		0.1		0.2
Expected return on plan assets	(0.1)		(0.4)		(0.1)		(0.4)
Net amortization	—		(0.1)		0.1		0.2
Net periodic cost	$	0.1	$	0.4	$	0.1	$	0.5

	Pension Benefits
	Nine Months Ended September 30,
	2023				2022
	U.S.		Non-U.S.		U.S.		Non-U.S.
Service cost	$	0.1	$	0.9	$	0.1	$	1.4
Interest cost	0.3		2.0		0.2		0.7
Expected return on plan assets	(0.2)		(1.2)		(0.2)		(1.0)
Net amortization	0.1		(0.4)		0.2		0.6
Net periodic cost	$	0.3	$	1.3	$	0.3	$	1.7

	Other Postretirement Benefits
	Three Months Ended September 30,				Nine Months Ended September 30,
	2023		2022		2023		2022
Service cost	$	0.1	$	0.2	$	0.3	$	0.5
Interest cost	0.2		0.1		0.6		0.4
Net amortization	(0.2)		(0.1)		(0.7)		(0.3)
Net periodic cost	$	0.1	$	0.2	$	0.2	$	0.6