Other Expense, Net (Tables)

6 Months Ended

Jun. 30, 2017

Other Income and Expenses [Abstract]

Schedule of other expense

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2017			2016			2017		2016
Lease termination settlement	$	—		$	—		$	5.3	$	—
Merger and acquisition expense	—			7.2			—		13.0
Restructuring expense	—			19.2			—		25.6
Other (income) expense	(0.3		)	(1.4		)	0.2		(1.9		)
Other expense, net	$	(0.3	)	$	25.0		$	5.5	$	36.7