Carrying value as of the balance sheet date.

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With respect to warrants or rights outstanding as of the balance sheet date, disclose date from which warrants or rights are exercisable.

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Reflects the calculation during the reporting period of the weighted average interest rate of commercial paper.

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The weighted average original maturity of the commercial paper outstanding. Presented in number of days.

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Debt Instrument Convertible Net Carrying Amount Of The Equity Component

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DebtInstrumentMaturityYear

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Financing Arrangements Line Items

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Amount of increase in the borrowing capacity of the line of credit facility.

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The component of interest income or expense representing the periodic increase in or charge against earnings to reflect amortization of debt discounts and premiums over the life of the related debt instruments, which are liabilities of the entity.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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The exercise price of each class of warrants or rights outstanding.

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-Publisher SEC
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Aggregate amount of each class of warrants or rights outstanding.

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-Name Statement of Financial Accounting Standard (FAS)
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The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Staff Position (FSP)
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- Definition

The price per share of the conversion feature embedded in the debt instrument.

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-Publisher FASB
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The effective interest rate on the liability component of convertible debt instrument which may be settled in cash upon conversion, including partial cash settlement.

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-Publisher FASB
-Name FASB Staff Position (FSP)
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Remaining amortization period for any discount on the liability component of convertible debt which may be settled in cash upon conversion.

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-Publisher FASB
-Name FASB Staff Position (FSP)
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The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
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Interest rate stated in the contractual debt agreement.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

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Amount of outstanding principal due under the debt instrument at the end of the reporting period.

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-Name Regulation S-X (SX)
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The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

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-Name FASB Staff Position (FSP)
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Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance-sheet date.

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-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
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Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings.

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-Publisher SEC
-Name Regulation S-X (SX)
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-Name Statement of Financial Accounting Standard (FAS)
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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Financing Arrangements (Details) (USD $) Share data in Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 29, 2011	Jul. 30, 2010	Apr. 29, 2011
Financing Arrangements [Line Items]
Amortization of discount on senior convertible notes	$ 21,000,000	$ 43,000,000
Senior Convertible Notes Due 2011 [Member]
Financing Arrangements [Line Items]
Debt Instrument Principal Outstanding	2,200,000,000
Debt Instrument Convertible Effective Interest Rate		5.97%
Interest Expense Debt		8,000,000
Amortization of discount on senior convertible notes		23,000,000
Debt Instrument Interest Rate Stated Percentage	1.50%
Debt Instrument Face Amount	2,200,000,000
Debt Instrument Maturity	2011
Debt Instrument Convertible Remaining Discount Amortization Period	0.25
Date From Which Warrants Or Rights Exercisable	July 2011
Class Of Warrant Or Right Outstanding	41
Senior Convertible Notes Due 2013 [Member]
Financing Arrangements [Line Items]
Debt Instrument Convertible Carrying Amount Of The Equity Component	547,000,000		547,000,000
Debt Instrument Principal Outstanding	2,200,000,000		2,200,000,000
Debt Instrument Unamortized Discount	(155,000,000)		(177,000,000)
Debt Instrument Convertible Effective Interest Rate	6.03%	6.03%
Interest Expense Debt	9,000,000	9,000,000
Amortization of discount on senior convertible notes	21,000,000	20,000,000
Debt Instrument Interest Rate Stated Percentage	1.625%
Debt Instrument Convertible Remaining Discount Amortization Period	2.25
Class Of Warrant Or Right Exercise Price Of Warrants Or Rights	$ 76.56
Date From Which Warrants Or Rights Exercisable	July 2013
Class Of Warrant Or Right Outstanding	41
Debt Instrument Convertible Net Carry Amount	2,045,000,000		2,023,000,000
Senior Notes 2010 Due 2015 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	3.00%
Debt Instrument Face Amount	1,250,000,000
Senior Notes 2010 Due 2020 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	4.45%
Debt Instrument Face Amount	1,250,000,000
Senior Notes Due 2040 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	5.55%
Debt Instrument Face Amount	500,000,000
Senior Notes 2009 Due 2014 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	4.50%
Debt Instrument Face Amount	550,000,000
Senior Notes 2009 Due 2019 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	5.60%
Debt Instrument Face Amount	400,000,000
Senior Notes 2009 Due 2039 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	6.50%
Debt Instrument Face Amount	300,000,000
Senior Notes 2005 Due 2015 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	4.75%
Debt Instrument Face Amount	600,000,000
Senior Notes 2006 Due 2013 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	1.63%
Debt Instrument Face Amount	2,200,000,000
Senior Notes 2011 Due 2016 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	2.63%
Debt Instrument Face Amount	500,000,000
Senior Notes 2011 Due 2021 [Member]
Financing Arrangements [Line Items]
Debt Instrument Interest Rate Stated Percentage	4.13%
Debt Instrument Face Amount	500,000,000
Contingent Convertible Debentures [Member]
Financing Arrangements [Line Items]
Debt Instrument Principal Outstanding	15,000,000
Debt Instrument Interest Rate Stated Percentage	1.25%
Debt Instrument Convertible Conversion Price	61.81
Syndicated Credit Facility [Member]
Financing Arrangements [Line Items]
Line Of Credit Facility Maximum Borrowing Capacity	2,250,000,000
Line of Credit Borrowing Capacity Increase	500,000,000
Commercial Paper Modified [Member]
Financing Arrangements [Line Items]
Debt Instrument Maturity	up to 364
Amount Outstanding	1,600,000,000		1,500,000,000
Commercial Paper Weighted Avg Original Maturity	106
Commercial Paper Weighted Average Intereste Rate	0.20%
Debt Instrument Unused Borrowing Capacity Amount	$ 2,250,000,000