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PARTNERSHIP AGREEMENTS (Details) - USD ($) shares in Millions, $ in Millions |  |  |  | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Jan. 30, 2021 | May 29, 2018 | May 17, 2018 | Jan. 30, 2021 | Nov. 07, 2020 | Aug. 15, 2020 | Feb. 01, 2020 | Nov. 09, 2019 | Aug. 17, 2019 | Aug. 18, 2018 | May 23, 2020 | May 25, 2019 | May 26, 2018 | Jan. 30, 2021 | Feb. 01, 2020 | Feb. 02, 2019
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on investments |  |  |  | $ 153 | $ 162 | $ 368 | $ (9) | $ 106 | $ (45) |  | $ 422 | $ 106 |  | $ 1,105 | $ 157 | $ 228
Ocado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Realized gain on equity securities |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Partnership Framework Agreement | Ocado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Letter of credit | $ 207 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Subscription Agreement | Ocado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ordinary shares to be purchased |  |  | 33.1 |  |  |  |  |  |  |  |  |  |  |  |  |
Aggregate purchase price |  |  | $ 243 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of ordinary shares purchased |  | 33.1 |  |  |  |  |  |  |  | 6.5 |  |  | 8.1 |  |  |
Level 1 | Ocado | Other Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Fair value of equity securities | $ 1,808 |  |  | $ 1,808 |  |  | $ 776 |  |  |  |  |  |  | 1,808 | 776 |
Gain on investments | Level 1 | Ocado |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Agreement and commitments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain (loss) on investments |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,032 | $ 157 | $ 228

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