Divestitures (Summary of Operating Results of CSRA Spin-Off) (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 01, 2016	Apr. 03, 2015	Mar. 28, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	$ 329	$ 384	$ 578
Income tax expense	(138)	(142)	(216)
Net income from discontinued operations, net of tax	191	242	362
CSRA | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	2,504	4,056	4,099
Costs of services	1,935	3,375	3,240
Selling, general and administrative	52	120	121
Depreciation and amortization	90	137	148
Restructuring costs	1	5	2
Separation and merger costs	103	0	0
Interest expense	15	22	19
Other (income) expense, net	(21)	2	0
Income from discontinued operations before income taxes	329	395	569
Income tax expense	(138)	(142)	(209)
Net income from discontinued operations, net of tax	$ 191	$ 253	$ 360