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Business and Summary of Accounting Policies Tax Effects Of Components Of Other Comprehensive (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]      
Before-tax amounts, Unrealized gains (losses) on investements $ 18us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax $ 12us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax $ 9us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax
Tax (expense) benefit, Unrealized gains (losses) on investments (7)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax (4)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax (4)us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
After-tax amounts, Unrealized gains (losses) on investments 11us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax 8us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax 5us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax
Before tax amounts, interest rate derivatives 5us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax 5us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax 5us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodBeforeTax
Tax (expense) benefit, interest rate derivatives (2)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax (2)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax (2)us-gaap_OtherComprehensiveIncomeUnrealizedGainLossOnDerivativesArisingDuringPeriodTax
After-tax amounts, interest rate derivatives 3kss_UnrealizedLossOnDerivativeArisingDuringPeriodNetOfReclassificationAdjustment 3kss_UnrealizedLossOnDerivativeArisingDuringPeriodNetOfReclassificationAdjustment 3kss_UnrealizedLossOnDerivativeArisingDuringPeriodNetOfReclassificationAdjustment
Other comprehensive income $ 14us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent $ 11us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent $ 8us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent