Pensions and Postretirement Benefits (Tables)

6 Months Ended

Jun. 30, 2020

Retirement Benefits [Abstract]

Schedule of Net Periodic Benefit Cost

The components of net periodic benefit cost for our U.S. and foreign defined benefit pension and other postretirement plans for the six months ended June 30, 2020 and 2019, are as follows:

	Quarters Ended June 30,								Six months ended June 30,
	Pension Benefits				Other Benefits				Pension Benefits				Other Benefits
	2020		2019		2020		2019		2020		2019		2020		2019
	(in millions)
Service cost	$	1.2	$	1.2	$	—	$	—	$	2.2	$	2.3	$	—	$	0.1
Interest cost	2.6		3.1		0.1		0.1		5.4		6.1		0.1		0.1
Expected return on plan assets	(4.8)		(4.0)		—		—		(9.5)		(8.0)		—		—
Amortization of prior service cost	—		0.1		—		—		—		0.1		—		—
Amortization of net loss (gain)	1.3		1.7		—		—		2.6		3.3		(1.1)		—
Curtailment loss	—		—		—		—		0.3		—		—		—
Net periodic benefit cost	$	0.3	$	2.1	$	0.1	$	0.1	$	1.0	$	3.8	$	(1.0)	$	0.2