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Calculation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Basic earnings per share
Net income	$ 536,279	$ 508,346
Weighted average common shares outstanding for basic EPS	644,425	661,515
Basic earnings per share	$ 0.83	$ 0.77
Net income	$ 536,279	$ 508,346
Weighted average common shares outstanding for basic EPS	644,425	661,515
Stock options and awards	10,374	8,873
Weighted average common shares outstanding for diluted EPS	654,799	670,388
Diluted earnings per share	$ 0.82	$ 0.76

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- Definition

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

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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.

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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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