Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Sep. 30, 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]
Increase in tax provision related to loss of tax attributes as a result of restructuring activities	$ 52
Tax benefits resulting from settlements	(1)		$ (9)
Reduction in provision related to certain foreign operations		$ 8		$ 8
Decrease in unrecognized tax benefits is reasonably possible	7		7
Information Management \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income taxes expense (benefit)	$ 118	$ (1)	$ 134	$ 20

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal.

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