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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-Name Regulation S-X (SX)

-Number 210

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-Article 5

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-SubTopic 210

-Section S99

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-Subparagraph (SX 210.9-03.9)

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-Section S99

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-Subparagraph (SX 210.7-03.5)

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The amount of the obligation to return cash collateral under master netting arrangements that have not been offset against net derivative instrument positions.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 8

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- Definition

The net realized foreign currency transaction gain (loss) (pretax) included in determining net income from transactions that were settled as of the balance sheet date.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 20

-Section 45

-Paragraph 1

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 52

-Paragraph 30

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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Derivatives and Foreign Exchange Risk Management (Other Disclosures) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 27, 2012	Jan. 28, 2011	Jan. 27, 2012	Jan. 28, 2011	Apr. 29, 2011
General Discussion of Derivative Instruments and Hedging Activities [Abstract]
Notional Amount of Foreign Currency Derivatives	$ 5,004		$ 5,004		$ 6,834
Foreign Currency Transaction Gain (Loss) Realized	(35)	(2)	(168)	106
Derivative, Collateral, Obligation to Return Cash					8
Portugal, Italy, Greece and Spain
Statement [Line Items]
Accounts Receivable, Net	$ 999		$ 999		$ 952