Extended Protection Plans (Details Textual) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Aug. 04, 2017	Jul. 29, 2016	Aug. 04, 2017	Jul. 29, 2016	Feb. 03, 2017
Extended Protection Plans
Deferred costs associated with extended protection plan contracts	$ 19	$ 18	$ 19	$ 18	$ 18
Expenses for claims incurred	$ 40	$ 38	$ 76	$ 68

Gross amount of deferred costs associated with extended warranty contracts yet to be recognized at the end of the reporting period.

No definition available.

Name:	low_DeferredCostsAssociatedWithExtendedWarrantyContracts
Namespace Prefix:	low_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant