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Stock-Based Compensation (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Aug. 22, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock, shares issued 190.1us-gaap_CommonStockSharesIssued 191.2us-gaap_CommonStockSharesIssued    
Common stock, shares outstanding 190.1us-gaap_CommonStockSharesOutstanding 191.2us-gaap_CommonStockSharesOutstanding    
Other current liabilities $ 1,048us-gaap_OtherLiabilitiesCurrent $ 876us-gaap_OtherLiabilitiesCurrent    
Weighted-average fair value per option at grant date $ 16us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 14us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue $ 15us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue  
Total unrecognized stock-based compensation expense related to nonvested share-based awards       46us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Total stock-based compensation expense, before income tax benefit 68us-gaap_ShareBasedCompensation 58us-gaap_ShareBasedCompensation 53us-gaap_ShareBasedCompensation  
Stock option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average exercise price per stock option granted (in dollars per share or unit) $ 61us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 $ 54us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 $ 53us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		  
Number of employees awarded stock options 1,799jwn_NumberOfEmployeesAwardedStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 1,625jwn_NumberOfEmployeesAwardedStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 1,477jwn_NumberOfEmployeesAwardedStockOptions
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		  
Total intrinsic value of options exercised 89us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 89us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 90us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		  
Total fair value of stock options vested 39us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 34us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 32us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		  
Total unrecognized stock-based compensation expense related to nonvested share-based awards 49us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		      
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 27 months      
Total stock-based compensation expense, before income tax benefit 37us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 44us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		 36us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember		  
Restricted stock units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period, in years 4 years      
Total unrecognized stock-based compensation expense related to nonvested share-based awards 25us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		      
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 38 months      
Weighted-average grant-date fair value per unit (in dollars per share) $ 63us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 $ 56us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		    
Total stock-based compensation expense, before income tax benefit 10us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 0us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		 0us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		  
Granted units (in shares or units) 0.5us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		      
Total fair value of units vested 1us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockUnitsRSUMember		      
Performance share units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period, in years 3 years      
Total unrecognized stock-based compensation expense related to nonvested share-based awards 6us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		      
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 21 months      
Total stock-based compensation expense, before income tax benefit 6us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		 0us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		 3us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		  
Granted units (in shares or units) 0.1us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		 [1]      
Total fair value of units vested 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		      
PSU's in other liabilities 8us-gaap_OtherLiabilities
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember		      
Performance share units [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of units that are earned 0.00%jwn_PercentageOfPerformanceShareUnitsThatAreEarned
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		      
Performance share units [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Percentage of units that are earned 175.00%jwn_PercentageOfPerformanceShareUnitsThatAreEarned
/ us-gaap_AwardTypeAxis
= us-gaap_PerformanceSharesMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		      
2010 Equity Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Aggregate number of shares authorized to be issued under equity incentive plan 27.6jwn_AggregateNumberOfSharesAuthorizedToBeIssuedUnderEquityIncentivePlan
/ us-gaap_PlanNameAxis
= jwn_TwoThousandTenEquityIncentivePlanMember		      
Shares or units authorized under equity incentive plan 70.4us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_PlanNameAxis
= jwn_TwoThousandTenEquityIncentivePlanMember		      
Common stock, shares issued 40.4us-gaap_CommonStockSharesIssued
/ us-gaap_PlanNameAxis
= jwn_TwoThousandTenEquityIncentivePlanMember		      
Common stock, shares outstanding 40.4us-gaap_CommonStockSharesOutstanding
/ us-gaap_PlanNameAxis
= jwn_TwoThousandTenEquityIncentivePlanMember		      
Shares available for grant under equity incentive plan 16.7us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant
/ us-gaap_PlanNameAxis
= jwn_TwoThousandTenEquityIncentivePlanMember		      
2010 Equity Incentive Plan [Member] | Stock option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period, in years 4 years      
Option expiration period 10 years      
Employee stock purchase plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Maximum percentage of employee payroll deductions under ESPP 10.00%jwn_PercentageOfPayrollDeductionsContributedToEmployeeStockPurchasePlan
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
ESPP offering period 6 months      
Percentage of fair market value for purchase of shares of common stock in ESPP 90.00%jwn_PercentageOfFairValueForPurchaseOfSharesOfCommonStockInEspp
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
Shares authorized under Employee Stock Purchase Plan 12.6jwn_SharesAuthorizedForEmployeeStockPurchasePlan
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
Shares available for issuance under Employee Stock Purchase Plan 3.3jwn_StockAvailableForIssuanceDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
Shares issued under Employee Stock Purchase Plan 0.3us-gaap_StockIssuedDuringPeriodSharesEmployeeStockPurchasePlans
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
Other current liabilities 6us-gaap_OtherLiabilitiesCurrent
/ us-gaap_PlanNameAxis
= us-gaap_EmployeeStockMember		      
2002 Nonemployee Director Stock Incentive Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares authorized under nonemployee director stock incentive plan 0.9us-gaap_ShareBasedGoodsAndNonemployeeServicesTransactionSharesApprovedForIssuance
/ us-gaap_PlanNameAxis
= jwn_A2002NonemployeeDirectorStockIncentivePlanMember		      
Remaining shares available for issuance under nonemployee director stock incentive plan 0.5jwn_ShareBasedGoodsAndNonemployeeServicesTransactionSharesAvailableForIssuance
/ us-gaap_PlanNameAxis
= jwn_A2002NonemployeeDirectorStockIncentivePlanMember		      
Expense recognized on deferred shares awarded under the nonemployee director stock incentive plan (less than $1 as of February 1, 2014) 1us-gaap_DeferredCompensationArrangementWithIndividualCompensationExpense
/ us-gaap_PlanNameAxis
= jwn_A2002NonemployeeDirectorStockIncentivePlanMember		      
Trunk Club [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average fair value per option at grant date $ 59us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Trunk Club [Member] | Minimum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Trunk Club Value Creation Plan payout 0jwn_TrunkClubLTIPpayout
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember		      
Trunk Club [Member] | Maximum [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Vesting period, in years 4 years      
Trunk Club Value Creation Plan payout 100jwn_TrunkClubLTIPpayout
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember		      
Trunk Club [Member] | Stock option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average exercise price per stock option granted (in dollars per share or unit) $ 4us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Total intrinsic value of options exercised 8us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Total unrecognized stock-based compensation expense related to nonvested share-based awards 13us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Total fair value of units vested 2us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_StockOptionMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Trunk Club [Member] | Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 32 months      
Trunk Club [Member] | Restricted stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total unrecognized stock-based compensation expense related to nonvested share-based awards 21us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 30 months      
Weighted-average grant-date fair value per unit (in dollars per share) $ 69us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		 $ 0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		    
Granted units (in shares or units) 0.5us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= us-gaap_RestrictedStockMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Trunk Club [Member] | Value Creation Plan [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares or units authorized under equity incentive plan 1.0us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
/ us-gaap_AwardTypeAxis
= jwn_LongtermIncentivePlanMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Total unrecognized stock-based compensation expense related to nonvested share-based awards 6us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
/ us-gaap_AwardTypeAxis
= jwn_LongtermIncentivePlanMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Weighted-average period that unrecognized stock-based compensation expense is expected to be recognized 43 months      
Weighted-average grant-date fair value per unit (in dollars per share) $ 10us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
/ us-gaap_AwardTypeAxis
= jwn_LongtermIncentivePlanMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Total stock-based compensation expense, before income tax benefit $ 3us-gaap_ShareBasedCompensation
/ us-gaap_AwardTypeAxis
= jwn_LongtermIncentivePlanMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
Granted units (in shares or units) 0.8us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= jwn_LongtermIncentivePlanMember
/ us-gaap_NoncashOrPartNoncashAcquisitionsByUniqueDescriptionAxis
= jwn_TrunkClubMember		      
[1] Assumes performance share units at 100% of the number of units granted.