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v3.19.1

Investments - Available-for-sale and Held-to-maturity Investments (Detail) $ in Millions | 6 Months Ended |  |
--- | --- | --- | ---
Feb. 18, 2018 USD ($) | Feb. 17, 2019 USD ($) warehouse | Sep. 02, 2018 USD ($)
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Available-for-sale, recorded basis |  | $ 884 |
Available-for-sale, cost basis, total |  | 892 |
Held-to-maturity, cost basis |  | 158 |
Total investments, recorded basis |  | $ 1,042 | $ 1,204
Proceeds from Sale of Available-for-sale Securities | $ 39 |  |
Number of Stores | warehouse |  | 769 |
Short-term Investments |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Unrealized gains/(loss), net |  | $ (8) | (14)
Total investments, recorded basis |  | 1,042 | 1,204
Total investments, cost basis, total |  | 1,050 | 1,218
Short-term Investments | Government and Agency Securities |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Available-for-sale, recorded basis |  | 884 | 898
Available-for-sale Securities [Member] | Short-term Investments |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Available-for-sale, recorded basis |  | 884 |
Unrealized gains/(loss), net |  | (8) |
Available-for-sale, cost basis, total |  | 892 |
Available-for-sale Securities [Member] | Short-term Investments | Government and Agency Securities |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Available-for-sale, recorded basis |  | 884 | 898
Unrealized gains/(loss), net |  | (8) | (14)
Available-for-sale, cost basis, total |  | 892 | 912
Held-to-maturity Securities [Member] | Short-term Investments |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Held-to-maturity, recorded basis |  | 158 |
Held-to-maturity, cost basis |  | 158 |
Held-to-maturity Securities [Member] | Short-term Investments | Certificates of deposit |  |  |
Available-for-sale and Held-to-maturity [Line Items] |  |  |
Held-to-maturity, recorded basis |  | 158 | 306
Held-to-maturity, cost basis |  | $ 158 | $ 306

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- Definition Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 + Details
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