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Summary of Significant Accounting Policies (Details) - USD ($) $ in Millions	12 Months Ended
	Apr. 28, 2017	Apr. 29, 2016	Apr. 24, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs	$ 128	$ 138
Other Information [Abstract]
Shipping and handling costs	370	316	$ 284
Tax benefit from exercise of stock-based awards	$ 92	82	$ 81
Minimum
Intangible Assets
Intangible assets, estimated useful life	3 years
Maximum
Intangible Assets
Intangible assets, estimated useful life	20 years
Accounting Standards Update 2015-03 | Assets
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs		(138)
Accounting Standards Update 2015-03 | Liabilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt issuance costs		$ 138

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Amount of increase (decrease) in additional paid in capital (APIC) resulting from a tax benefit (deficiency) associated with an share-based compensation plan other than an employee stock ownership plan (ESOP).

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Cost incurred during the reporting period in transporting goods and services to customers. Includes freight-out costs.

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