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Benefit Plans Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Compensation and Retirement Disclosure [Abstract]      
Percentage of maximum investment by participant 100.00%kss_DefinedBenefitPlanContributionsByPlanParticipantsPercentage    
Increase in percentage of participants 100% contribution fully matched per participants 5.00%kss_IncreaseInPercentageOfParticipantsContributionFullyMatchedPerParticipants    
Non-qualified deferred compensation plan pre-tax compensation deferrals 100.00%kss_NonQualifiedDeferredCompensationPlanPercentageOfBeforeTaxCompensationDeferrals    
Deferrals snd credited investment returns vesting percentage 100.00%kss_DeferralsAndCreditedInvestmentReturnsVestingPercentage    
Employee Stock Ownership Plan, Defined Contribution Plan, Non-Qualified Deferred Compensation Plan $ 43kss_EmployeeStockOwnershipPlanDefinedContributionPlanNonQualifiedDeferredCompensationPlan $ 49kss_EmployeeStockOwnershipPlanDefinedContributionPlanNonQualifiedDeferredCompensationPlan $ 53kss_EmployeeStockOwnershipPlanDefinedContributionPlanNonQualifiedDeferredCompensationPlan