Defined Benefit and Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures

For all plans, the components of net periodic benefit for the three months ended March 31, 2021 and 2020 are as follows:

	Pension				Postretirement
(in millions)	2021		2020		2021		2020
Service cost	$	1.5	$	1.6	$	0.1	$	0.1
Interest cost	5.1		6.6		0.2		0.2
Expected return on plan assets	(14.1)		(14.7)		—		—
Recognized curtailment gain	(0.7)		—		—		—
Amortization of prior service cost	—		(0.1)		(0.3)		(0.3)
Amortization of net loss	6.5		4.8		—		—
Net periodic benefit	$	(1.7)	$	(1.8)	$	—	$	—

Schedule of Contributions By Benefit Plan Type

We expect to contribute the following to our pension and postretirement plans:

(in millions)	Pension		Postretirement
Expected contributions in 2021	$	20.7	$	2.6
Amounts contributed during the three months ended March 31, 2021	$	15.7	$	0.1