Income Taxes (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jan. 01, 2016	Jan. 02, 2015	Jan. 01, 2016	Jan. 02, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Reduction in provision related to certain foreign operations			$ 8
Reduction in effective tax rate resulting from settlements and lapses of statues of limitations		$ 2	12
Decrease in unrecognized tax benefits is reasonably possible	$ 21		21
Information Management \| Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Provision for income taxes	$ 53	$ 46	$ 73	$ 143

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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Section 50
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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.

+ References

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit).

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Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

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