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Income and Other Taxes (Details) (USD $)	3 Months Ended		6 Months Ended
Income and Other Taxes (Details) (USD $)	Aug. 02, 2013	Aug. 03, 2012	Aug. 02, 2013	Aug. 03, 2012	Feb. 01, 2013
Effective Income Tax Rate, Continuing Operations	6.90%	12.70%	11.40%	16.10%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate			35.00%
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 2,900,000,000		$ 2,900,000,000		$ 2,900,000,000
Total amount
Income Tax Reconciliation, Other Reconciling Items			26,000,000
Upper limit
Income Tax Reconciliation, Other Reconciling Items			$ 26,000,000

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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