Pensions and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2024

Retirement Benefits [Abstract]

Net Periodic Benefit Cost

Components of net periodic benefit cost for the three and nine months ended September 30, 2024 and 2023 were as follows:

	Pension and Other Postretirement Benefits
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In millions)	2024		2023		2024		2023
Service cost	$	7.8	$	7.0	$	23.5	$	21.2
Interest cost	16.6		18.3		49.9		54.8
Expected return on plan assets	(16.9)		(16.4)		(50.7)		(49.2)
Amortization of prior service costs	0.5		0.1		1.6		0.1
Recognized net actuarial gains	(4.3)		(4.9)		(12.8)		(14.9)
Other	—		(3.1)		—		1.3
Net periodic benefit cost	$	3.7	$	1.0	$	11.5	$	13.3