Pension and Other Postemployment Benefits (Tables)

9 Months Ended

Sep. 30, 2024

Pension and Other Postemployment Benefits [Abstract]

Net Periodic Benefit Expense

Net periodic benefit expense:

	Defined Benefit Pension Plans				Postemployment Arrangements
	Nine Months Ended September 30,				Nine Months Ended September 30,
	2024		2023		2024		2023
Service cost	$	2.1	$	2.5	$	2.3	$	2.6
Interest cost	4.9		7.8		4.4		4.3
Expected return on plan assets	(0.6)		(0.7)		—		—
Amortization of prior service cost	0.3		0.2		3.3		2.9
Amortization of actuarial losses	0.6		0.6		0.2		—
Total net periodic benefit expense	$	7.3	$	10.4	$	10.2	$	9.8