Pensions and Other Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Net Periodic Benefit Cost

Components of net periodic benefit cost for the three months ended March 31, 2021 and 2020 were as follows:

	Pension and Other Postretirement Benefits
	Three Months Ended
	March 31,
(In millions)	2021		2020
Service cost	$	10.8	$	5.3
Interest cost	8.5		2.9
Expected return on plan assets	(16.5)		(3.4)
Amortization of prior service costs	(0.1)		—
Recognized net actuarial losses	0.3		0.2
Net periodic benefit cost	$	3.0	$	5.0