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For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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-Name Accounting Standards Codification

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Aggregate impact of foreign currency derivatives on earnings for the period. Includes impact of foreign currency cash flow hedge ineffectiveness and the ineffectiveness of fair value hedging derivatives and full change in fair value of the foreign currency derivatives not designated as hedging instruments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 133

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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Aggregate notional amount of foreign currency exchange rate derivatives. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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-Publisher FASB

-Name Accounting Standards Codification

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Cash receipts from customers during the current period which are usually for sales of goods and services.

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Name Accounting Standards Codification

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Derivatives and Foreign Exchange Risk Management , Credit Risk and Other Disclosures (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Apr. 26, 2013	Apr. 26, 2013	Apr. 27, 2012	Apr. 29, 2011
General Discussion of Derivatives
Net currency exchange rate gains/(losses)		$ 25	$ (183)	$ 92
Concentration Risk [Line Items]
Notional Amount of Foreign Currency Derivatives	6,812	6,812	5,136
Concentrations of Credit Risk
Proceeds from customers	212
Portugal, Italy, Greece and Spain
Concentrations of Credit Risk
Accounts receivable net of allowance	770	770	967
GREECE
Concentrations of Credit Risk
Deferred Revenue	$ 21	$ 21	$ 15