Retirement Plans (Tables)

3 Months Ended

Mar. 31, 2019

Pension Plans, Defined Benefit

Schedule of Components of Net Periodic Benefit Cost from Continuing Operations

The components of total Net Periodic Benefit Cost from continuing operations associated with the Company’s defined benefit retirement plans are as follows (dollars in millions):

	Three months ended
	March 31, 2019			March 31, 2018
Service cost	$	4.5		$	4.9
Interest cost		5.2			4.7
Expected return on plan assets		(3.9	)		(5.6	)
Amortization prior service cost		0.1			0.1
Amortization of actuarial loss		0.6			0.8
Net Periodic Benefit Cost	$	6.5		$	4.9