General (Policies)	3 Months Ended
Nov. 19, 2022
General
Fiscal Period	Operating results for the twelve weeks ended November 19, 2022 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 26, 2023. 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 2023 and 2022 each have 16 weeks.
Recent Accounting Pronouncements	Recently Adopted Accounting Pronouncements In November 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2021-10, Government Assistance (Topic 832) – Disclosures by Business Entities about Government Assistance, which requires annual disclosures for entities receiving governmental assistance to provide more transparency. This ASU is effective for fiscal years beginning after December 15, 2021. The Company adopted this ASU with its first quarter ended November 19, 2022 on a prospective basis. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements and related disclosures. Recently Issued Accounting Pronouncements In September 2022, the FASB issued ASU 2022-04, Liabilities – Supplier Finance Programs (Subtopic 405-50). The update requires that a buyer in a supplier finance program disclose sufficient qualitative and quantitative information about the program to allow a reader of the financial statements to understand the program’s nature, activity during the period, changes from period to period and the program’s potential magnitude. ASU 2022-04 is effective for fiscal years beginning after December 15, 2022, including interim periods within those years, except for the disclosure of rollforward information which is effective for fiscal years beginning after December 15, 2023. Early adoption is permitted. The Company will adopt this standard beginning with its first quarter ending November 18, 2023. The Company is currently evaluating the new guidance to determine the impact the adoption will have on the Company's consolidated financial statements and related disclosures.

General (Policies)

3 Months Ended

Nov. 19, 2022

Operating results for the twelve weeks ended November 19, 2022 are not necessarily indicative of the results that may be expected for the full fiscal year ending August 26, 2023. 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 2023 and 2022 each have 16 weeks.

Recent Accounting Pronouncements

Recently Adopted Accounting Pronouncements

In November 2021, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2021-10, Government Assistance (Topic 832) – Disclosures by Business Entities about Government Assistance, which requires annual disclosures for entities receiving governmental assistance to provide more transparency. This ASU is effective for fiscal years beginning after December 15, 2021. The Company adopted this ASU with its first quarter ended November 19, 2022 on a prospective basis. The adoption of this guidance did not have a material impact on the Company's consolidated financial statements and related disclosures.

Recently Issued Accounting Pronouncements

In September 2022, the FASB issued ASU 2022-04, Liabilities – Supplier Finance Programs (Subtopic 405-50). The update requires that a buyer in a supplier finance program disclose sufficient qualitative and quantitative information about the program to allow a reader of the financial statements to understand the program’s nature, activity during the period, changes from period to period and the program’s potential magnitude. ASU 2022-04 is effective for fiscal years beginning after December 15, 2022, including interim periods within those years, except for the disclosure of rollforward information which is effective for fiscal years beginning after December 15, 2023. Early adoption is permitted. The Company will adopt this standard beginning with its first quarter ending November 18, 2023. The Company is currently evaluating the new guidance to determine the impact the adoption will have on the Company's consolidated financial statements and related disclosures.