Derivative Financial Instruments and Hedging Activities 3 (Details) (USD $)	3 Months Ended		12 Months Ended			12 Months Ended				12 Months Ended		3 Months Ended
	Jul. 28, 2010	Oct. 28, 2009	Apr. 29, 2012	Apr. 28, 2010	Apr. 27, 2011	Apr. 29, 2012 Foreign Exchange Contract [Member]	Apr. 27, 2011 Foreign Exchange Contract [Member]	Apr. 28, 2010 Foreign Exchange Contract [Member]	Jan. 25, 2012 U.S. Dollar Remarketable Securities due December 2020 [Member]	Apr. 29, 2012 Interest Rate Swap [Member]	Jan. 25, 2012 Interest Rate Swap [Member]	Jan. 25, 2012 Interest Rate Swap [Member] U.S. Dollar Remarketable Securities due December 2020 [Member]
Derivative [Line Items]
Notional Amount of Foreign Currency Derivatives			$ 1,910,000,000		$ 1,860,000,000
Notional Amount of Interest Rate Derivatives			160,000,000		1,510,000,000
Notional Amount of Cross Currency Interest Rate Swap			386,200,000		377,300,000
Derivative, Fair Value, Net			74,800,000		72,700,000
Translation Adjustment For Net Investment Hedge Instrument Increase (Decrease) Net Of Tax				(32,300,000)
Translation Adjustment For Net Investment Hedge Instrument Tax (Benefit) Expense				(20,400,000)
Cash Proceeds From Termination Of Foreign Currency Forward Contracts	11,600,000
Hedge Accounting Adjustments Related To Debt Obligations			128,444,000		150,543,000
Period of Hedging Forecasted Transactions			3 years
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			1,700,000
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments			445,500,000		309,900,000
Unrealized Gain Loss related to Outstanding Nondesignated Derivative Instruments			3,100,000		8,300,000
Derivative, Gain (Loss) on Derivative, Net						8,800,000	(16,900,000)	(2,500,000)
Derivative Instrument, Term												3 years
Notional Amount of Interest Rate Derivative Instruments Not Designated as Hedging Instruments												119,000,000
Debt Instrument, Face Amount									119,000,000
Interest Income Earned on Total Rate of Return Swap				28,300,000						(100,000)
Unrealized Gain Loss Related to Total Rate of Return Swap										200,000
Cash Collateral for Borrowed Securities											34,100,000
Notional Amount of Total Rate of Return Swap Contracts				175,000,000
Amount Of Dealer Remarketable Securities Exchanged		681,000,000		681,000,000
Net Cash Received Due to Termination Of Swap				47,600,000
Receipt of Restricted cash maintained with the counterparty				$ 192,700,000
Concentration Risk, Customer			.1