(Discontinued Operations) (Details) - USD ($) $ in Millions		3 Months Ended
	Jul. 31, 2014	Jul. 03, 2015	Jul. 04, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds for sale of business		$ 34	$ 5
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Abstract]
Revenue		0	7
(Loss) income from discontinued operations, before taxes		0	(9)
Tax expense		0	0
Net (loss) income from discontinued operations		0	(9)
(Loss) gain on disposition, before taxes		0	1
Tax (benefit) expense		0	0
(Loss) gain on disposition, net of taxes		0	1
Income from discontinued operations, net of taxes		$ 0	$ (8)
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