Pensions and Other Postretirement Benefits (Tables)

9 Months Ended

Sep. 30, 2023

Retirement Benefits [Abstract]

Net Periodic Benefit Cost

Components of net periodic benefit cost for the three and nine months ended September 30, 2023 and 2022 were as follows:

	Pension and Other Postretirement Benefits
	Three Months Ended				Nine Months Ended
	September 30,				September 30,
(In millions)	2023		2022		2023		2022
Service cost	$	7.0	$	9.5	$	21.2	$	28.5
Interest cost	18.3		10.3		54.8		31.1
Expected return on plan assets	(16.4)		(16.5)		(49.2)		(49.7)
Amortization of prior service costs	0.1		0.1		0.1		0.2
Recognized net actuarial (gains)/losses	(4.9)		—		(14.9)		0.1
Other	(3.1)		—		1.3		—
Net periodic benefit cost	$	1.0	$	3.4	$	13.3	$	10.2