Acquisitions and Divestitures (Discontinued Operations) (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
	Jul. 31, 2014	Oct. 02, 2015	Oct. 03, 2014	Oct. 02, 2015	Oct. 03, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds for sale of business				$ 34	$ (13)
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Revenue		$ 0	$ 3	0	10
(Loss) income from discontinued operations, before taxes		0	(2)	0	(11)
Tax expense		0	0	0	0
Net (loss) income from discontinued operations		0	(2)	0	(11)
(Loss) gain on disposition, before taxes		0	(22)	0	(21)
Tax (benefit) expense		0	(3)	0	(3)
(Loss) gain on disposition, net of taxes		0	(19)	0	(18)
Income from discontinued operations, net of taxes		$ 0	$ (21)	$ 0	$ (29)
Discontinued Operations, Disposed of by Sale | European Healthcare | European GBS - IS&S
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds for sale of business	$ 3
Gain (loss) on disposal of discontinued operations	(22)
Net assets divested	$ 23