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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions |  | 6 Months Ended |
--- | --- | --- | ---
Sep. 02, 2019 USD ($) | Feb. 16, 2020 USD ($) warehouse states | Sep. 01, 2019 USD ($)
Summary Of Significant Accounting Policies [Line Items] |  |  |
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification | $ | $ 2,632 |  |
Document Fiscal Year Focus |  | 2020 |
Document Period End Date |  | Feb. 16, 2020 |
Number of warehouses operated |  | 785 |
Operating Lease, Right-of-Use Asset | $ |  | $ 2,596 | $ 0
UNITED STATES |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 546 |
Number of states in country | states |  | 44 |
CANADA |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 100 |
MEXICO |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 39 |
UNITED KINGDOM |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 29 |
JAPAN |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 26 |
KOREA |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 16 |
TAIWAN |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 13 |
AUSTRALIA |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 11 |
SPAIN |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 2 |
ICELAND |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 1 |
FRANCE |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 1 |
CHINA |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of warehouses operated |  | 1 |

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