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Trunk Club Acquisition (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
12 Months Ended 9 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Nov. 01, 2014
Aug. 22, 2014
Business Acquisition [Line Items]          
Acquisition date Aug. 22, 2014        
Outstanding equity of Trunk Club acquired (in percent)         100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
Purchase price fair value $ 357us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable        
Total unrecognized stock-based compensation expense related to Trunk Club long-term incentive plan units         46us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Net purchase price 311us-gaap_BusinessCombinationConsiderationTransferred1        
Closing stock price at acquisition date         $ 69us-gaap_BusinessAcquisitionSharePrice
Issuance of common stock for Trunk Club acquisition 280us-gaap_StockIssuedDuringPeriodValueAcquisitions        
Vested replacement stock options issued         0.1us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
Net assets acquired         311us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet
Amortization expense of intangible assets 10us-gaap_AmortizationOfIntangibleAssets 10us-gaap_AmortizationOfIntangibleAssets 19us-gaap_AmortizationOfIntangibleAssets    
Trade names [Member]          
Business Acquisition [Line Items]          
Amortization period for intangible assets acquired 7 years        
Technology [Member]          
Business Acquisition [Line Items]          
Amortization period for intangible assets acquired 2 years        
Customer relationships [Member]          
Business Acquisition [Line Items]          
Amortization period for intangible assets acquired 2 years 6 months        
Adjustment holdback [Member]          
Business Acquisition [Line Items]          
Purchase price fair value 9us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
/ us-gaap_NonrecurringAdjustmentAxis
= jwn_AdjustmentholdbackMember
       
Indemnity holdback [Member]          
Business Acquisition [Line Items]          
Purchase price fair value 35us-gaap_BusinessCombinationConsiderationTransferredEquityInterestsIssuedAndIssuable
/ us-gaap_NonrecurringAdjustmentAxis
= jwn_IndemnityholdbackMember
       
Net purchase price 31us-gaap_BusinessCombinationConsiderationTransferred1
/ us-gaap_NonrecurringAdjustmentAxis
= jwn_IndemnityholdbackMember
       
Indemnity holdback payout settlement period 3 years        
Trunk Club [Member]          
Business Acquisition [Line Items]          
Amortization period for intangible assets acquired 7 years        
Expected total amortization expense of intangible assets         59us-gaap_IntangibleAssetsGrossExcludingGoodwill
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember
Amortization expense of intangible assets 5us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember
       
Goodwill         261us-gaap_GoodwillGross
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember
Trunk Club [Member] | Maximum [Member]          
Business Acquisition [Line Items]          
Employee vesting period for unvested stock awards and options 4 years        
Common Stock          
Business Acquisition [Line Items]          
Issuance of common stock for Trunk Club acquisition (in shares) 3.7us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
    3.6us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
 
Issuance of common stock for Trunk Club acquisition $ 280us-gaap_StockIssuedDuringPeriodValueAcquisitions
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember
       
Common Stock | Adjustment holdback [Member]          
Business Acquisition [Line Items]          
Issuance of common stock for Trunk Club acquisition (in shares) 0.1us-gaap_BusinessAcquisitionEquityInterestsIssuedOrIssuableNumberOfSharesIssued
/ us-gaap_NonrecurringAdjustmentAxis
= jwn_AdjustmentholdbackMember
/ us-gaap_StatementEquityComponentsAxis
= us-gaap_CommonStockMember