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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Oct. 30, 2010	Oct. 29, 2011
Income Taxes [Abstract]
Interest expense reversal	$ 11
Provision has been made for U.S. income taxes		$ 0

The amount as of the balance sheet date of the estimated future tax effects attributable to undistributed earnings of subsidiaries and other recognized entities in countries outside the country of domicile which will increase future taxable income when such earnings are distributed into the country of domicile.

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