Earnings Per Share (Computation Of Earnings Per Share) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended	12 Months Ended
Jan. 28, 2012	Oct. 29, 2011	Jul. 30, 2011	Apr. 30, 2011	Jan. 29, 2011	Oct. 30, 2010	Jul. 31, 2010	May 01, 2010	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Earnings Per Share [Abstract]
Net earnings	$ 236	$ 127	$ 175	$ 145	$ 232	$ 119	$ 146	$ 116	$ 683	$ 613	$ 441
Basic shares									213.5	218.8	216.8
Dilutive effect of stock options and other									4.2	3.8	2.9
Diluted shares									217.7	222.6	219.7
Earnings per basic share	$ 1.13	$ 0.60	$ 0.81	$ 0.66	$ 1.06	$ 0.54	$ 0.67	$ 0.53	$ 3.20	$ 2.80	$ 2.03
Earnings per diluted share	$ 1.11	$ 0.59	$ 0.80	$ 0.65	$ 1.04	$ 0.53	$ 0.66	$ 0.52	$ 3.14	$ 2.75	$ 2.01
Anti-dilutive stock options and other equity instruments									3.9	6.1	7.2

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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-Name Accounting Standards Codification

-Glossary Antidilution

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-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

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-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

+ Details

- Definition

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

+ References

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-Topic 260

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-Section 45

-Paragraph 2

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+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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-Glossary Other Comprehensive Income

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-Publisher FASB

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-URI http://asc.fasb.org/extlink&oid=6518256

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+ Details

- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References+ Details

- Definition

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

+ References

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+ Details