Leases - Summary of Other Lease Information (Details) - USD ($) $ in Millions	6 Months Ended
Jul. 31, 2021	Aug. 01, 2020
Property and equipment acquired (disposed) through:
Finance lease liabilities	$ 569	$ 56
Operating lease liabilities	$ (29)	$ 103

Increase decrease of operating lease liabilities through purchase and disposal of property and equipment.

No definition available.

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