Summary of Status of Company's Stock Options (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Shares
Balance, beginning	5.8	7.6	10.6
Granted	0	0	1.2
Exercised	(0.8)	(1.4)	(3.8)
Forfeited	(0.4)	(0.4)	(0.4)
Balance, ending	4.6	5.8	7.6
Weighted-Average Exercise Price
Balance, beginning	$ 23.96	$ 22.43	$ 16.00
Granted			$ 20.32
Exercised	$ 14.75	$ 13.35	$ 2.85
Forfeited	$ 29.02	$ 30.18	$ 33.51
Balance, ending	$ 25.04	$ 23.96	$ 22.43

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Net number of share options (or share units) granted during the period.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average price at which grantees can acquire the shares reserved for issuance on stock options awarded.

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Number of share options (or share units) exercised during the current period.

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