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Schedule of Net Deferred Tax Assets (Detail) (USD $) In Millions, unless otherwise specified	Jan. 30, 2015	Jan. 31, 2014
Income Tax Disclosure [Abstract]
Net current deferred tax assets	$ 12	$ 89
Deferred income taxes	14us-gaap_DeferredTaxAssetsNetNoncurrent	15us-gaap_DeferredTaxAssetsNetNoncurrent
Net non-current deferred tax liabilities	(21)	(66)
Net deferred tax assets	$ 5us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 38us-gaap_DeferredTaxAssetsLiabilitiesNet

Amount after allocation of valuation allowances of noncurrent deferred tax asset attributable to deductible temporary differences and carryforwards. Noncurrent assets are expected to be realized or consumed after one year (or the normal operating cycle, if longer).

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