v3.26.3
Document and Entity Information - USD ($)
12 Months Ended
Aug. 29, 2026
Oct. 19, 2026
Feb. 14, 2026
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Aug. 29, 2026    
Securities Act File Number 1-10714    
Entity Registrant Name AUTOZONE INC    
Entity Incorporation, State or Country Code NV    
Entity Tax Identification Number 62-1482048    
Entity Address, Address Line One 123 South Front Street    
Entity Address, City or Town Memphis    
Entity Address, State or Province TN    
Entity Address, Postal Zip Code 38103    
City Area Code 901    
Local Phone Number 495-6500    
Title of 12(b) Security Common Stock    
Trading Symbol AZO    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
ICFR Auditor Attestation Flag true    
Document Financial Statement Error Correction [Flag] false    
Entity Shell Company false    
Entity Public Float     $ 62,188,111,016
Entity Common Stock, Shares Outstanding   16,094,341  
Documents Incorporated by Reference [Text Block]

Portions of the definitive Proxy Statement to be filed within 120 days of August 29, 2026, pursuant to Regulation 14A under the Securities Exchange Act of 1934 for the Annual Meeting of Stockholders to be held December 16, 2026, are incorporated by reference into Part III.

   
Current Fiscal Year End Date --08-29    
Document Fiscal Year Focus 2026    
Document Fiscal Period Focus FY    
Entity Central Index Key 0000866787    
Amendment Flag false    
Auditor Name Ernst & Young LLP    
Auditor Firm ID 42    
Auditor Location Memphis, Tennessee