This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.

+ References+ Details

This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.

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- Definition

Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.

+ References+ Details

- Definition

+ References+ Details

Fair Value Measurements (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions, unless otherwise specified	May 05, 2012	Mar. 03, 2012	Apr. 30, 2011
Fair Value [Member] \| Cash and Cash Equivalents [Member] \| Money Market Funds [Member]
ASSETS
Cash and cash equivalents	$ 439	$ 272	$ 1,485
Fair Value [Member] \| Cash and Cash Equivalents [Member] \| Commercial Paper [Member]
ASSETS
Cash and cash equivalents			60
Fair Value [Member] \| Cash and Cash Equivalents [Member] \| US Treasury Securities [Member]
ASSETS
Cash and cash equivalents			190
Fair Value [Member] \| Short-term Investments [Member] \| US Treasury Securities [Member]
ASSETS
Short-term investments			20
Fair Value [Member] \| Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments		1	9
Fair Value [Member] \| Other Current Assets [Member] \| Money Market Funds [Member]
ASSETS
Restricted cash	104	119	107
Fair Value [Member] \| Other Current Assets [Member] \| US Treasury Securities [Member]
ASSETS
Restricted cash	30	30	70
Fair Value [Member] \| Equity and Other Investments [Member]
ASSETS
Auction rate securities	66	82	97
Marketable equity securities	3	3	147
Fair Value [Member] \| Other Assets [Member]
ASSETS
Foreign currency derivative instruments			2
Fair Value [Member] \| Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		2	2
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Cash and Cash Equivalents [Member] \| Money Market Funds [Member]
ASSETS
Cash and cash equivalents	439	272	1,485
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Cash and Cash Equivalents [Member] \| Commercial Paper [Member]
ASSETS
Cash and cash equivalents			0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Cash and Cash Equivalents [Member] \| US Treasury Securities [Member]
ASSETS
Cash and cash equivalents			190
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Short-term Investments [Member] \| US Treasury Securities [Member]
ASSETS
Short-term investments			20
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments		0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Other Current Assets [Member] \| Money Market Funds [Member]
ASSETS
Restricted cash	104	119	107
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Other Current Assets [Member] \| US Treasury Securities [Member]
ASSETS
Restricted cash	30	30	70
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Equity and Other Investments [Member]
ASSETS
Auction rate securities	0	0	0
Marketable equity securities	3	3	147
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Other Assets [Member]
ASSETS
Foreign currency derivative instruments			0
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] \| Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		0	0
Significant Other Observable Inputs (Level 2) [Member] \| Cash and Cash Equivalents [Member] \| Money Market Funds [Member]
ASSETS
Cash and cash equivalents	0	0	0
Significant Other Observable Inputs (Level 2) [Member] \| Cash and Cash Equivalents [Member] \| Commercial Paper [Member]
ASSETS
Cash and cash equivalents			60
Significant Other Observable Inputs (Level 2) [Member] \| Cash and Cash Equivalents [Member] \| US Treasury Securities [Member]
ASSETS
Cash and cash equivalents			0
Significant Other Observable Inputs (Level 2) [Member] \| Short-term Investments [Member] \| US Treasury Securities [Member]
ASSETS
Short-term investments			0
Significant Other Observable Inputs (Level 2) [Member] \| Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments		1	9
Significant Other Observable Inputs (Level 2) [Member] \| Other Current Assets [Member] \| Money Market Funds [Member]
ASSETS
Restricted cash	0	0	0
Significant Other Observable Inputs (Level 2) [Member] \| Other Current Assets [Member] \| US Treasury Securities [Member]
ASSETS
Restricted cash	0	0	0
Significant Other Observable Inputs (Level 2) [Member] \| Equity and Other Investments [Member]
ASSETS
Auction rate securities	0	0	0
Marketable equity securities	0	0	0
Significant Other Observable Inputs (Level 2) [Member] \| Other Assets [Member]
ASSETS
Foreign currency derivative instruments			2
Significant Other Observable Inputs (Level 2) [Member] \| Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		2	2
Significant Unobservable Inputs (Level 3) [Member] \| Cash and Cash Equivalents [Member] \| Money Market Funds [Member]
ASSETS
Cash and cash equivalents	0	0	0
Significant Unobservable Inputs (Level 3) [Member] \| Cash and Cash Equivalents [Member] \| Commercial Paper [Member]
ASSETS
Cash and cash equivalents			0
Significant Unobservable Inputs (Level 3) [Member] \| Cash and Cash Equivalents [Member] \| US Treasury Securities [Member]
ASSETS
Cash and cash equivalents			0
Significant Unobservable Inputs (Level 3) [Member] \| Short-term Investments [Member] \| US Treasury Securities [Member]
ASSETS
Short-term investments			0
Significant Unobservable Inputs (Level 3) [Member] \| Other Current Assets [Member]
ASSETS
Foreign currency derivative instruments		0	0
Significant Unobservable Inputs (Level 3) [Member] \| Other Current Assets [Member] \| Money Market Funds [Member]
ASSETS
Restricted cash	0	0	0
Significant Unobservable Inputs (Level 3) [Member] \| Other Current Assets [Member] \| US Treasury Securities [Member]
ASSETS
Restricted cash	0	0	0
Significant Unobservable Inputs (Level 3) [Member] \| Equity and Other Investments [Member]
ASSETS
Auction rate securities	66	82	97
Marketable equity securities	0	0	0
Significant Unobservable Inputs (Level 3) [Member] \| Other Assets [Member]
ASSETS
Foreign currency derivative instruments			0
Significant Unobservable Inputs (Level 3) [Member] \| Accrued Liabilities [Member]
LIABILITIES
Foreign currency derivative instruments		$ 0	$ 0