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ACCOUNTING POLICIES - DESCRIPTION OF BUSINESS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Aug. 15, 2020 | Aug. 17, 2019 | Aug. 15, 2020 | Aug. 17, 2019 | Feb. 01, 2020
Fiscal Year |  |  |  |  |
Length of fiscal period | 84 days | 84 days | 196 days | 196 days |
Other Assets | Level 1 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
Fair value of equity securities | $ 1,493 |  | $ 1,493 |  | $ 776
Other Assets | Level 3 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
Other equity investments of fair value | $ 114 |  | $ 114 |  | $ 41

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