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Earnings per Share and Shareholders' Equity Anti-Dilutive Securities (Details) (Options, RSUs and PSUs [Member]) In Millions, unless otherwise specified	3 Months Ended
	May 02, 2015	May 03, 2014
Options, RSUs and PSUs [Member]
Diluted earnings per share [Abstract]
Securities outstanding not included in computation of diluted earnings per share	1.2	0.9

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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