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Goodwill and Intangible Assets (Schedule of Amortization Expense for Finite-Lived Intangible Assets) (Detail) (USD $)
In Millions, unless otherwise specified
Apr. 03, 2015
Jan. 30, 2015
Goodwill and Intangible Assets Disclosure [Abstract]    
2016 (remainder of the fiscal year) $ 7us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear  
2016 8us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo  
2017 6us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree  
2018 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour  
2019 2us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive  
2020 and thereafter 4us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive  
Net carrying value $ 31us-gaap_FiniteLivedIntangibleAssetsNet $ 24us-gaap_FiniteLivedIntangibleAssetsNet