Benefit Plans Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Feb. 01, 2014	Feb. 02, 2013	Jan. 29, 2011
Compensation and Retirement Disclosure [Abstract]
Percentage of maximum investment by participant	100.00%
Increase in percentage of participants 100% contribution fully matched per participants	5.00%
Non-qualified deferred compensation plan pre-tax compensation deferrals	100.00%
Deferrals snd credited investment returns vesting percentage	100.00%
Employee Stock Ownership Plan, Defined Contribution Plan, Non-Qualified Deferred Compensation Plan	$ 49	$ 53	$ 57

Deferrals and credited investment returns vesting percentage

No definition available.

Name:	kss_DeferralsAndCreditedInvestmentReturnsVestingPercentage
Namespace Prefix:	kss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Defined benefit plan contributions by plan participants percentage

No definition available.

Name:	kss_DefinedBenefitPlanContributionsByPlanParticipantsPercentage
Namespace Prefix:	kss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Employee Stock Ownership Plan, Defined Contribution Plan, Non-Qualified Deferred Compensation Plan

No definition available.

Name:	kss_EmployeeStockOwnershipPlanDefinedContributionPlanNonQualifiedDeferredCompensationPlan
Namespace Prefix:	kss_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Increase in percentage of participants contribution fully matched per participants

No definition available.

Name:	kss_IncreaseInPercentageOfParticipantsContributionFullyMatchedPerParticipants
Namespace Prefix:	kss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Non-qualified deferred compensation plan percentage of before tax compensation deferrals

No definition available.

Name:	kss_NonQualifiedDeferredCompensationPlanPercentageOfBeforeTaxCompensationDeferrals
Namespace Prefix:	kss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

Name:	us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration