Other Expense, Net (Tables)

6 Months Ended

Jun. 30, 2018

Other Income and Expenses [Abstract]

Schedule of other expense

	Three Months Ended June 30,						Six Months Ended June 30,
(in millions)	2018			2017			2018			2017
Restructuring expense	$	31.2		$	—		$	38.7		$	—
Merger, acquisition and divestiture expense	1.0			—			3.2			—
Lease termination settlement	—			—			—			5.3
Other (income) expense	(1.8		)	(0.3		)	(6.6		)	0.2
Other expense (income), net	$	30.4		$	(0.3	)	$	35.3		$	5.5