Calculation of Basic and Diluted Earnings Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
Aug. 03, 2013	Jul. 28, 2012	Aug. 03, 2013	Jul. 28, 2012
Capital Stock And Earnings Per Share
Basic earnings per share, Net income	$ 479,559	$ 421,092	$ 932,449	$ 840,292
Weighted average common shares outstanding for basic EPS	715,706	736,830	717,754	739,531
Basic earnings per share	$ 0.67	$ 0.57	$ 1.30	$ 1.14
Diluted earnings per share, Net income	$ 479,559	$ 421,092	$ 932,449	$ 840,292
Weighted average common shares outstanding for basic EPS	715,706	736,830	717,754	739,531
Assumed exercise/vesting of Stock options and awards	12,893	14,413	12,996	14,190
Weighted average common shares outstanding for diluted EPS	728,599	751,243	730,750	753,721
Diluted earnings per share	$ 0.66	$ 0.56	$ 1.28	$ 1.11

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

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The amount of net income (loss) derived from continuing operations during 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.

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Additional shares included in the calculation of diluted EPS as a result of the potentially dilutive effect of share based payment arrangements using the treasury stock method.

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Net income after adjustments for dividends on preferred stock (declared in the period) and/or cumulative preferred stock (accumulated for the period).

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Net Income or Loss Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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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.

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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.

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