Pension and Other Postemployment Benefits (Tables)

6 Months Ended

Jun. 30, 2018

Defined Benefit Pension Plans [Member]

Components of Net Periodic Benefit Expense

Defined Benefit Pension Plans

The components of net periodic benefit expense for the six months ended June 30, 2018 and 2017 were (in millions):

	2018			2017
Service cost	$	4.0		$	5.3
Interest cost	3.6			3.5
Expected return on plan assets	(1.4		)	(1.4		)
Amortization of prior service cost	2.2			2.4
Amortization of actuarial losses	3.3			3.1
	$	11.7		$	12.9

Postemployment Arrangements [Member]

Components of Net Periodic Benefit Expense

Postemployment Arrangements

The components of net periodic benefit expense for the six months ended June 30, 2018 and 2017 were (in millions):

	2018		2017
Service cost	$	2.4	$	2.2
Interest cost	1.8		1.8
Amortization of prior service cost	1.7		1.8
Amortization of actuarial losses	0.9		0.5
	$	6.8	$	6.3