General (Policies)	3 Months Ended
Nov. 20, 2021
General
Fiscal Period	Operating results for the twelve weeks ended November 20, 2021 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 27, 2022. Each of the first three quarters of AutoZone’s fiscal year consists of 12 weeks, and the fourth quarter consists of 16 or 17 weeks. The fourth quarters of fiscal 2022 and 2021 each have 16 weeks.
Recent Accounting Pronouncements	The Company does not expect any recently issued accounting pronouncements to have a material effect on the Company’s financial statements and related disclosures

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=108774443&loc=d3e5291-111683

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