Amount of cash receipt from deferred gain on discontinuance of fair value hedge representing accrued interest.

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Amount of the unrealized gain (loss) on fair value hedging instruments.

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Amount of the unrealized gain (loss) on hedged item in fair value hedge.

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Unrealized gain (loss) on interest rate cash flow hedges recorded in balance sheet.

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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Average fixed interest rate related to the group of interest rate derivatives.

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The amount of cash received during the period on settlement of a hedge.

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The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

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Net gain (loss) recognized in earnings during the reporting period representing the amount of the fair value of the hedges' ineffectiveness.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Aggregate notional amount of all derivatives designated as cash flow hedging instruments. The notional amount relates to a number of currency units, shares, bushels, pounds, or other units specified in a derivative instrument.

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Aggregate notional amount of all foreign currency derivatives not designated as hedging instruments. Notional amount refers to the number of currency units specified in the foreign currency derivative contract.

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Aggregate notional amount of all interest rate derivatives designated as hedging instruments in cash flow hedges. Notional amount refers to the monetary amount specified in the interest rate derivative contract.

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Derivatives and Foreign Exchange Risk Management (Effect on Income Statement) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended			3 Months Ended		6 Months Ended		1 Months Ended			3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended
	Oct. 28, 2011	Oct. 29, 2010	Oct. 28, 2011	Oct. 29, 2010	Apr. 29, 2011	Oct. 28, 2011 Foreign Exchange Contract [Member]	Oct. 29, 2010 Foreign Exchange Contract [Member]	Oct. 28, 2011 Foreign Exchange Contract [Member]	Oct. 29, 2010 Foreign Exchange Contract [Member]	Jul. 31, 2011 Terminated Interest Rate Swap [Member]	Aug. 31, 2011 Terminated Interest Rate Swap 2 [Member]	Oct. 28, 2011 Forward Starting Interest Rate Swap [Member]	Oct. 28, 2011 Other Expense [Member] Foreign Exchange Contract [Member]	Oct. 29, 2010 Other Expense [Member] Foreign Exchange Contract [Member]	Oct. 28, 2011 Other Expense [Member] Foreign Exchange Contract [Member]	Oct. 29, 2010 Other Expense [Member] Foreign Exchange Contract [Member]	Oct. 28, 2011 Cost of Sales [Member]	Oct. 29, 2010 Cost of Sales [Member] Foreign Exchange Contract [Member]	Oct. 28, 2011 Cost of Sales [Member] Foreign Exchange Contract [Member]	Oct. 29, 2010 Cost of Sales [Member] Foreign Exchange Contract [Member]	Oct. 29, 2010 Other Income [Member] Foreign Exchange Contract [Member]	Oct. 29, 2010 Other Income [Member] Foreign Exchange Contract [Member]
Foreign Currency Derivative Instruments Not Designated as Hedging Instruments [Abstract]
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	$ 1,895		$ 1,895		$ 2,453
Gain (Loss) on Foreign Currency Derivative Instruments Not Designated as Hedging Instruments													37	(42)	20	(21)
Summary of Cash Flow Hedge Activity [Abstract]
Notional Amount of Cash Flow Hedge Instruments	3,331		3,331		4,381
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	111	(261)	131	(336)		111	(261)	131	(336)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(48)	22	(94)	75									(55)		(109)		7	6	15	5	16	70
Summary of Fair Value Hedge Activity [Abstract]
Derivative, Cash Received on Hedge										46	42
Derivative Interest Accrued on Hedge										10	7
Unrealized Gain (Loss) on Fair Value Hedging Instruments	136		136
Unrealized Gain (Loss) on Hedged Item in Fair Value Hedge	136		136
Gain (Loss) on Fair Value Hedge Ineffectiveness, Net			1	2
Interest Rate Derivatives [Abstract]
Notional Amount of Interest Rate Cash Flow Hedge Derivatives	1,950		1,950		3,500					900	650	750
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	141		141
Derivative, Average Fixed Interest Rate												2.84%
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges	(10)		(10)
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Net, Accumulated Other Comprehensive Income (Loss)	$ 177		$ 177		$ 257