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Earnings Per Share And Shareholders' Equity (Shares Utilized for the Calculation of Basic and Diluted Earnings per Share) (Details) - shares shares in Millions		3 Months Ended		9 Months Ended
		Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Weighted-average Common Shares:
Issued Shares		313	309	312	309
Treasury Shares		(22)	(17)	(20)	(17)
Basic Shares		291	292	292	292
Effect of Dilutive Options and Restricted Stock		5	6	5	6
Diluted Shares		296	298	297	298
Anti-dilutive Options and Awards (a)	[1]	1	0	1	1
[1] These options and awards were excluded from the calculation of diluted earnings per share because their inclusion would have been anti-dilutive.

X

- Definition

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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-Publisher FASB



-Name Accounting Standards Codification



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-Glossary Contingent Stock Agreement



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The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation.

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- 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.

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- Definition

This element represents the weighted average total number of shares issued throughout the period including the first (beginning balance outstanding) and last (ending balance outstanding) day of the period before considering any reductions (for instance, shares held in treasury) to arrive at the weighted average number of shares outstanding. Weighted average relates to the portion of time within a reporting period that common shares have been issued and outstanding to the total time in that period. Such concept is used in determining the weighted average number of shares outstanding for purposes of calculating earnings per share (basic).

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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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No definition available.

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Number of shares of treasury stock determined by relating the portion of time within a reporting period that treasury shares have been outstanding to the total time in that period. Treasury stock is stock that the Entity has issued but subsequently reacquired.

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