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Discontinued Operations (Narrative) (Details) - Information Management - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Sep. 30, 2016	Jul. 01, 2016	Oct. 02, 2015	Sep. 30, 2016	Oct. 02, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price adjustment	$ 0	$ 38	$ 0	$ 38	$ 0
Deferred Revenue, Current \| Customer Relationships and Customer Contracts
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets, current	157			157
Deferred Revenue, Current \| Service and Maintenance Rights
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Intangible assets, current	65			65
Other Income (Expense), Net
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operation after disposal	$ 8			$ 17