Retirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2018

Compensation And Retirement Disclosure [Abstract]

Components of Net Periodic Pension Expense

The components of net periodic pension expense for our U.S. and foreign defined benefit pension plans are as follows (in millions):

	Three Months Ended						Nine Months Ended
	September 30,						September 30,
	2018			2017			2018			2017
Service cost	$	6.8		$	7.1		$	21.3		$	21.0
Interest cost		5.6			4.6			16.7			13.9
Expected return on plan assets		(11.6	)		(10.1	)		(35.1	)		(30.3	)
Curtailment loss		-			0.2			-			0.4
Amortization of prior service cost		(2.4	)		(2.6	)		(7.4	)		(7.7	)
Amortization of unrecognized actuarial loss		6.7			5.4			19.5			16.2
Net periodic pension expense	$	5.1		$	4.6		$	15.0		$	13.5