Pension Benefit Plans (Tables)

6 Months Ended

Jun. 30, 2020

Retirement Benefits [Abstract]

Components of net periodic benefit cost

The components of net periodic benefit cost for pensions benefits were as follows (in millions):

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2020		2019		2020		2019
Service cost	$	1.4	$	1.2	$	2.8	$	2.4
Interest cost	1.6		1.9		3.3		5.4
Expected return on plan assets	(2.0)		(2.5)		(4.2)		(7.2)
Amortization of prior service cost	—		0.1		0.1		0.1
Recognized actuarial loss	1.4		0.9		2.9		2.9
Settlements and curtailments	—		60.6		—		60.6
Net periodic benefit cost	$	2.4	$	62.2	$	4.9	$	64.2