Debt - Components of Long Term Debt (Details) (USD $) In Millions, unless otherwise specified	Nov. 02, 2013	Feb. 02, 2013	Oct. 27, 2012
Debt Instrument [Line Items]
Unamortized debt discount	$ (8)	$ (8)	$ (8)
Long-term debt	2,792	2,492	2,492
Senior Notes
Debt Instrument [Line Items]
Effective Rate	5.54%	5.63%	5.63%
Total senior debt	2,800	2,500	2,500
Senior Notes \| Senior Notes Due 2017
Debt Instrument [Line Items]
Effective Rate	6.31%	6.31%	6.31%
Debt Instrument, Interest Rate, Stated Percentage	6.25%	6.25%	6.25%
Total senior debt	650	650	650
Senior Notes \| Senior Notes Due 2021
Debt Instrument [Line Items]
Effective Rate	4.81%	4.81%	4.81%
Debt Instrument, Interest Rate, Stated Percentage	4.00%	4.00%	4.00%
Total senior debt	650	650	650
Senior Notes \| Senior Notes Due 2023
Debt Instrument [Line Items]
Effective Rate	3.25%	3.25%	3.25%
Debt Instrument, Interest Rate, Stated Percentage	3.25%	3.25%	3.25%
Total senior debt	350	350	350
Senior Notes \| Four Point Seven Eight Percent Senior Note Due Twenty Twenty Three [Member] [Domain]
Debt Instrument [Line Items]
Effective Rate	4.78%
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Total senior debt	300		0
Senior Notes \| Senior Notes Due 2029
Debt Instrument [Line Items]
Effective Rate	7.36%	7.36%	7.36%
Debt Instrument, Interest Rate, Stated Percentage	7.25%	7.25%	7.25%
Total senior debt	200	200	200
Senior Notes \| Senior Notes Due 2033
Debt Instrument [Line Items]
Effective Rate	6.05%	6.05%	6.05%
Debt Instrument, Interest Rate, Stated Percentage	6.00%	6.00%	6.00%
Total senior debt	300	300	300
Senior Notes \| Senior Notes Due 2037
Debt Instrument [Line Items]
Effective Rate	6.89%	6.89%	6.89%
Debt Instrument, Interest Rate, Stated Percentage	6.00%	6.00%	6.00%
Total senior debt	$ 350	$ 350	$ 350

Interest rate stated in the contractual debt agreement.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 45

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-Paragraph 31

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher AICPA

-Name Accounting Principles Board Opinion (APB)

-Number 21

-Paragraph 16, 20

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

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- Definition

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

+ References

No definition available.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher SEC

-Name Regulation S-X (SX)

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-Publisher FASB

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