Special Charges and Other, Net (Tables)

6 Months Ended

Sep. 30, 2018

Other Nonrecurring (Income) Expense [Abstract]

Schedule of restructuring and related costs

The following table summarizes activity included in the "special charges and other, net" caption on the Company's condensed consolidated statements of income (in millions):

	Three Months Ended				Six Months Ended
	September 30,				September 30,
	2018		2017		2018			2017
Restructuring
Employee separation costs	$	12.1	$	0.3	$	57.2		$	1.4
Gain on sale of assets	—		—		—			(4.4		)
Impairment charges	1.5		—		3.5			0.1
Contract exit costs	4.0		19.6		(3.0		)	20.2
Other	0.6		—		0.6			(0.2		)
Total	$	18.2	$	19.9	$	58.3		$	17.1

The following is a roll forward of accrued restructuring and other exit charges from April 1, 2018 to September 30, 2018 (in millions):

	Restructuring						Non-Restructuring
	Employee Separation Costs			Exit Costs			Exit Costs			Total
Balance at April 1, 2018	$	0.8		$	27.3		$	19.1		$	47.2
Additions due to Microsemi acquisition	11.4			6.6			—			18.0
Charges/income	40.1			(3.0		)	—			37.1
Payments	(15.5		)	(6.5		)	(1.9		)	(23.9		)
Non-cash - Other	—			0.6			0.4			1.0
Balance at September 30, 2018	$	36.8		$	25.0		$	17.6		$	79.4
Current										$	49.2
Non-current										30.2
Total										$	79.4