Divestitures (Summary of Operating Results of NPS) (Details) - NPS - Discontinued Operations, Disposed of by Means Other than Sale, Spinoff $ in Millions	3 Months Ended
	Jul. 03, 2015 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 957
Costs of services	(754)
Selling, general and administrative	(16)
Depreciation and amortization	(33)
Separation and merger costs	(15)
Interest expense	(5)
Other income, net	22
Total income from discontinued operations before income taxes	156
Income tax expense	(54)
Total income from discontinued operations	$ 102