Restructuring (Tables)

12 Months Ended

Mar. 31, 2018

Restructuring and Related Activities [Abstract]

Accrued restructuring severance and exit costs activity

Accrued restructuring severance and exit costs and changes in the accruals for fiscal years 2018, 2017 and 2016 were as follows:

(in millions)	Accrued Balance at March 31, 2017		Expense		Change in Estimate		Payments			Accretion and Other			Accrued Balance at March 31, 2018
Severance charges	$	1	$	—	$	—	$	(1	)	$	—		$	—
Facility exit charges	11		—		—		(3		)	(1		)	7
Total accrued liabilities	$	12											$	7

(in millions)	Accrued Balance at March 31, 2016		Expense		Change in Estimate			Payments			Accretion and Other			Accrued Balance at March 31, 2017
Severance charges	$	3	$	—	$	(1	)	$	(1	)	$	—		$	1
Facility exit charges	16		—		—			(4		)	(1		)	11
Total accrued liabilities	$	19												$	12

(in millions)	Accrued Balance at March 31, 2015		Expense		Change in Estimate			Payments			Accretion and Other		Accrued Balance at March 31, 2016
Severance charges	$	28	$	—	$	(3	)	$	(22	)	$	—	$	3
Facility exit charges	21		—		—			(5		)	—		16
Total accrued liabilities	$	49											$	19