Quarterly Financial Information (Schedule of Quarterly Financial Data) (Details) (USD $) In Millions, except Per Share data	3 Months Ended	12 Months Ended
Jan. 29, 2011	Oct. 30, 2010	Jul. 31, 2010	May 01, 2010	Jan. 30, 2010	Oct. 31, 2009	Aug. 01, 2009	May 02, 2009	Jan. 29, 2011	Jan. 30, 2010	Jan. 31, 2009
Quarterly Financial Information
Net sales	$ 6,038	$ 4,218	$ 4,100	$ 4,035	$ 5,682	$ 4,051	$ 3,806	$ 3,638	$ 18,391	$ 17,178	$ 16,389
Gross margin	2,223	1,622	1,651	1,537	2,070	1,539	1,520	1,368	7,032	6,498	6,055
Net income	$ 494	$ 176	$ 255	$ 195	$ 426	$ 188	$ 226	$ 133	$ 1,120	$ 973	$ 857
Basic shares	295	307	307	307	306	305	305	305	304	305	306
Basic net income per share	$ 1.68	$ 0.57	$ 0.83	$ 0.63	$ 1.39	$ 0.62	$ 0.74	$ 0.43	$ 3.69	$ 3.19	$ 2.80
Diluted shares	297	308	308	309	308	308	306	306	306	306	307
Diluted net income per share	$ 1.66	$ 0.57	$ 0.83	$ 0.63	$ 1.38	$ 0.61	$ 0.74	$ 0.43	$ 3.66	$ 3.17	$ 2.80

The amount of net income or loss for the period per each share of common stock outstanding during the reporting period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 21
-Article 9

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 36, 37, 38

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 20
-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
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The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period.

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-Publisher FASB
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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Research Bulletin (ARB)
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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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The average number of shares issued and outstanding that are used in calculating diluted EPS, determined based on the timing of issuance of shares in the period.

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Number of [basic] shares, after adjustment for contingently issuable shares and other shares not deemed outstanding, determined by relating the portion of time within a reporting period that common shares have been outstanding to the total time in that period.

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