Segment Information (Details) $ in Millions	3 Months Ended
	Jul. 01, 2016 USD ($) Segment	Jul. 03, 2015 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	2
Revenues	$ 1,930	$ 1,804	[1]
Operating income (loss)	52	144
Depreciation and amortization	166	174	[1]
Corporate
Segment Reporting Information [Line Items]
Revenues	0	0
Operating income (loss)	(17)	(6)
Depreciation and amortization	16	9
GBS | Operating Segments
Segment Reporting Information [Line Items]
Revenues	1,049	919
Operating income (loss)	73	97
Depreciation and amortization	36	30
GIS | Operating Segments
Segment Reporting Information [Line Items]
Revenues	881	885
Operating income (loss)	(4)	53
Depreciation and amortization	$ 114	$ 135

[1] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes, for the adoption of ASU 2016-09 related to employee stock-based compensation and to give effect to discontinued operations. See Note 19 Reconciliation of Previously Reported Amounts.