Segment and Geographic Information (Details) $ in Millions		12 Months Ended
		Apr. 01, 2016 USD ($) Segment		Apr. 03, 2015 USD ($)		Mar. 28, 2014 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | Segment		2
Segment Reporting Information [Line Items]
Revenues		$ 7,106	[1]	$ 8,117	[2]	$ 8,899	[2]
Operating income (loss)		515		459		852
Depreciation and amortization		658	[1]	840	[2]	870	[2]
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)		515		459		852
Corporate G&A		(216)		(230)		(245)
Pension & OPEB actuarial (losses) gains		(99)		(584)		217
SEC Settlement related charges and other		0		(200)		0
Separation costs		(19)	[1]	0	[2]	0	[2]
Interest expense		(123)	[1]	(126)	[2]	(128)	[2]
Interest income		38	[1]	20	[2]	16	[2]
Debt extinguishment costs	[3]	(95)	[1]	0	[2]	0	[2]
Other income (expense), net		9	[1]	(10)	[2]	(18)	[2]
Income (loss) from continuing operations, before taxes		10	[1]	(671)	[2]	694	[2]
Operating segments | GBS
Segment Reporting Information [Line Items]
Revenues		3,637		4,036		4,321
Operating income (loss)		381		405		574
Depreciation and amortization		124		149		152
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)		381		405		574
Operating segments | GIS
Segment Reporting Information [Line Items]
Revenues		3,469		4,081		4,578
Operating income (loss)		216		162		382
Depreciation and amortization		491		673		704
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)		216		162		382
Corporate
Segment Reporting Information [Line Items]
Revenues		0		0		0
Operating income (loss)		(82)		(108)		(104)
Depreciation and amortization		43		18		14
Reconciliation of Consolidated Operating Income to Income Before Taxes [Abstract]
Operating income (loss)		$ (82)		$ (108)		$ (104)

[1] Due to the adoption of ASU 2016-09 certain balances related to excess tax benefits from stock compensation were adjusted prospectively as described in Note 1.

[2] Certain prior year balances were adjusted for certain errors in previously issued financial statements related to income taxes as described in Note 1 and to give effect to discontinued operations as described in Note 4.

[3] Due to the adoption of ASU 2016-09 certain balances related to employee stock-based compensation were adjusted retrospectively as discussed in Note 1 .