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Leases - Summary of Weighted-Average Remaining Term and Discount Rate for Financing Obligations (Details)	9 Months Ended
	Nov. 02, 2019
Leases [Abstract]
Weighted-average remaining term (years)	9 years
Weighted-average discount rate	7.00%

X

- Definition

Financing obligations weighted average discount rate percent.

+ References

No definition available.

+ Details

Name:	kss_FinancingObligationsWeightedAverageDiscountRatePercent
Namespace Prefix:	kss_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Financing obligations weighted average remaining term.

+ References

No definition available.

+ Details

Name:	kss_FinancingObligationsWeightedAverageRemainingTerm
Namespace Prefix:	kss_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

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