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Summary of Significant Accounting Policies - Additional Information (Detail) $ in Millions |  | 8 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 02, 2019 USD ($) | May 10, 2020 USD ($) warehouse states | Feb. 27, 2020 | 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 |  | May 10, 2020 |  |
Number of warehouses operated | warehouse |  | 787 |  |
Operating Lease, Right-of-Use Asset |  | $ 2,749 |  | $ 0
Goodwill |  | 987 |  | 53
Goodwill, Foreign Currency Translation Gain (Loss) |  | (1) |  |
Goodwill, Acquired During Period |  | $ 935 |  |
Equity Method Investment, Ownership Percentage |  |  | 35.00% |
UNITED STATES |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 547 |  |
Number of states in country | states |  | 45 |  |
UNITED STATES | Operating Segments [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Goodwill |  | $ 948 |  | 13
Goodwill, Foreign Currency Translation Gain (Loss) |  | 0 |  |
Goodwill, Acquired During Period |  | $ 935 |  |
CANADA |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 100 |  |
CANADA | Operating Segments [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Goodwill |  | $ 26 |  | 27
Goodwill, Foreign Currency Translation Gain (Loss) |  | (1) |  |
Goodwill, Acquired During Period |  | $ 0 |  |
MEXICO |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 39 |  |
UNITED KINGDOM |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 29 |  |
JAPAN |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 26 |  |
KOREA |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 16 |  |
TAIWAN |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 13 |  |
AUSTRALIA |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 12 |  |
SPAIN |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 2 |  |
ICELAND |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 1 |  |
FRANCE |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 1 |  |
CHINA |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of warehouses operated | warehouse |  | 1 |  |
Other International Operations | Operating Segments [Member] |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Goodwill |  | $ 13 |  | $ 13
Goodwill, Foreign Currency Translation Gain (Loss) |  | 0 |  |
Goodwill, Acquired During Period |  | $ 0 |  |

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