XML 45 R32.htm IDEA: XBRL DOCUMENT v3.22.4

Merchandise Inventories - (Detail) - USD ($) $ in Millions	Nov. 19, 2022	Aug. 27, 2022
Merchandise Inventories
LIFO credit reserve balance	$ 96.0	$ 15.0

The value of (Last in First Out) LIFO inventory reserve as at the end of the reporting period.

No definition available.

Name:	azo_InventoryLifoReserves
Namespace Prefix:	azo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

No definition available.

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