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ACCOUNTING POLICIES - DESCRIPTION OF BUSINESS (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Aug. 14, 2021 | Aug. 15, 2020 | Aug. 14, 2021 | Aug. 15, 2020 | Jan. 30, 2021
Fiscal Year |  |  |  |  |
Length of fiscal period | 84 days | 84 days | 196 days | 196 days |
FAIR VALUE MEASUREMENTS |  |  |  |  |
(Loss) gain on investments | $ (122) | $ 368 | $ (601) | $ 790 |
Level 1 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
(Loss) gain on investments | (122) | 295 | (601) | 717 |
Level 3 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
(Loss) gain on investments |  | $ 73 |  | $ 73 |
Other Assets | Level 1 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
Fair value of equity securities | 1,207 |  | 1,207 |  | $ 1,808
Other Assets | Level 3 |  |  |  |  |
FAIR VALUE MEASUREMENTS |  |  |  |  |
Fair value of equity securities | $ 210 |  | $ 210 |  | $ 156

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