Borrowings Textuals [Abstract]

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- Definition

Senior unsecured revolving credit facility

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- Definition

Carrying value as of the balance sheet date collateralized debt obligations (short term portion)

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- Definition

Total Debt

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 7

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19
-Subparagraph a(3)
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 13
-Subparagraph 2
-Article 9

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 21
-Paragraph 16, 20

+ Details

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- Definition

Estimated fair value of the debt instrument at the balance-sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10

+ Details

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- Definition

Interest rate stated in the contractual debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount borrowed under the credit facility as of the balance-sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

+ Details

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 129
-Paragraph 2, 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 22
-Article 5

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- Definition

Sum of the carrying values as of the balance sheet date of all long-term debt, which is debt initially having maturities due after one year from the balance sheet date or beyond the operating cycle, if longer, but excluding the portions thereof scheduled to be repaid within one year (current maturities) or the normal operating cycle, if longer, and after deducting unamortized discount or premiums, if any.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

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- Definition

Sum of the carrying amounts at the balance sheet date of short-term borrowings not otherwise specified in the taxonomy having initial terms less than one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19
-Article 5

+ Details

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- Definition

The cash inflow from the issuance of uncollateralized debt obligation (where debt is not backed by the pledge of collateral).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 18

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 19
-Subparagraph b

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- Definition

Carrying value as of the balance sheet date , including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20, 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 16
-Article 9

+ Details

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- Definition

Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19, 20
-Article 5

+ Details

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Balance Type:	credit
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- Definition

Carrying value as of the balance sheet date of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer), excluding the current portion, if any. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

+ Details

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- Definition

Reflects the calculation as of the balance-sheet date of the average interest rate weighted by the amount of short-term debt outstanding by type or by instrument at that time.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 19
-Subparagraph b
-Article 5

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Borrowings (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Apr. 29, 2011	Jan. 28, 2011	Apr. 29, 2011 Structured Financing [Member]	Apr. 29, 2011 Expires on April 2, 2013	Apr. 29, 2011 Expired on June 1, 2011	Apr. 29, 2011 Expires on April 15, 2015	Apr. 29, 2011 2012 Notes	Jan. 28, 2011 2012 Notes	Jun. 10, 2009 2012 Notes	Apr. 29, 2011 2013A Notes	Jan. 28, 2011 2013A Notes	Apr. 17, 2008 2013A Notes	Apr. 29, 2011 2013B Notes	Jan. 28, 2011 2013B Notes	Sep. 07, 2010 2013B Notes	Apr. 29, 2011 2014A Notes	Jan. 28, 2011 2014A Notes	Apr. 01, 2009 2014A Notes	Apr. 29, 2011 2014B Notes	Mar. 28, 2011 2014B Notes	Jan. 28, 2011 2014B Notes	Apr. 29, 2011 2014C Notes	Mar. 28, 2011 2014C Notes	Jan. 28, 2011 2014C Notes	Apr. 29, 2011 2015 Notes	Jan. 28, 2011 2015 Notes	Sep. 07, 2010 2015 Notes	Apr. 29, 2011 2016 Notes	Mar. 28, 2011 2016 Notes	Jan. 28, 2011 2016 Notes	Apr. 29, 2011 2018 Notes	Jan. 28, 2011 2018 Notes	Apr. 17, 2008 2018 Notes	Apr. 29, 2011 2019 Notes	Jan. 28, 2011 2019 Notes	Jun. 10, 2009 2019 Notes	Apr. 29, 2011 2021 Notes	Mar. 28, 2011 2021 Notes	Jan. 28, 2011 2021 Notes	Apr. 29, 2011 2038 Notes	Jan. 28, 2011 2038 Notes	Apr. 17, 2008 2038 Notes	Apr. 29, 2011 2040 Notes	Jan. 28, 2011 2040 Notes	Sep. 07, 2010 2040 Notes	Apr. 29, 2011 2028 Notes	Jan. 28, 2011 2028 Notes	Apr. 03, 1998 2028 Notes
Debt Instrument [Line Items]
Long-term debt	$ 6,794	$ 5,146					$ 400	$ 400		$ 608	$ 609		$ 499	$ 499		$ 500	$ 500		$ 300		$ 0	$ 400		$ 0	$ 700	$ 700		$ 400		$ 0	$ 499	$ 499		$ 600	$ 600		$ 398		$ 0	$ 400	$ 400		$ 300	$ 300		$ 388	$ 389
Secured Long-term Debt, Noncurrent	402	250
Secured Debt, Current	815	850
Other	1	1
Short-term debt	816	851
Total debt	7,610	5,997
Notes Issued, Long-term debt									400			600			500			500		300			400				700		400				500			600		400				400			300			300
Stated interest rate for each instrument									3.375%			4.70%			1.40%			5.625%					2.10%				2.30%		3.10%				5.65%			5.875%		4.625%				6.50%			5.40%			7.10%
Borrowings Textuals [Abstract]
Net proceeds from Issued Notes	1,500
Estimated Fair Value of debt	7,800
Secured Debt	1,200
Commercial paper	0	0
Weighted- average interest rate on short term borrowings			0.40%
Senior unsecured revolving credit facility	3,000			1,000	1,000	2,000
Line of Credit Facility, Maximum Borrowing Capacity	2,000
Line of Credit Facility, Amount Outstanding	$ 0