Defined Benefit and Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2022

Retirement Benefits [Abstract]

Schedule of Defined Benefit Plans Disclosures

For all plans, the components of net periodic benefit for the three months ended June 30, 2022 and 2021 are as follows:

	Pension				Postretirement
(in millions)	2022		2021		2022		2021
Service cost	$	1.3	$	1.7	$	0.1	$	0.1
Interest cost	5.2		5.2		0.2		0.2
Expected return on plan assets	(13.9)		(15.7)		—		—
Recognized curtailment gain	—		—		—		—
Amortization of prior service cost	—		(0.1)		(0.3)		(0.3)
Amortization of net loss	4.8		6.5		—		—
Net periodic benefit	$	(2.6)	$	(2.4)	$	—	$	—

For all plans, the components of net periodic benefit for the six months ended June 30, 2022, and 2021 are as follows:

	Pension				Postretirement
(in millions)	2022		2021		2022		2021
Service cost	$	2.6	$	3.2	$	0.1	$	0.2
Interest cost	10.4		10.4		0.4		0.3
Expected return on plan assets	(27.9)		(29.8)		—		—
Recognized curtailment gain	—		(0.7)		—		—
Amortization of prior service cost	—		(0.1)		(0.5)		(0.5)
Amortization of net loss	9.5		13.1		—		—
Net periodic benefit	$	(5.4)	$	(3.9)	$	—	$	—

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 2022	$	20.1	$	2.6
Amounts contributed during the six months ended June 30, 2022	$	8.6	$	—