Leases - Summary of Weighted-Average Remaining Term and Discount Rate for Financing Obligations (Details)	6 Months Ended	12 Months Ended
Jul. 31, 2021	Jan. 30, 2021
Leases [Abstract]
Weighted-average remaining term (years)	9 years	8 years
Weighted-average discount rate	9.00%	7.00%

Financing obligations weighted average discount rate percent.

No definition available.

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