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SHARE-BASED AWARDS - Supervalu Replacement Awards (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions |  | 12 Months Ended
--- | --- | ---
Oct. 22, 2018 | Jul. 31, 2021 | Aug. 01, 2020 | Aug. 03, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Fixed value of expensed replacement award liabilities (in dollars per share) | $ 32.50 |  |  |
Number of authorized additional shares | 5.0 |  |  |
Number of shares of common stock issued |  |  | 1.3 | 2.0
Average price (in dollars per share) |  |  | $ 10.66 | $ 12.00
Proceeds from the issuance of common stock, net |  | $ 1 | $ 14 | $ 24
SUPERVALU |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Cash payment (in dollars per share) | $ 32.50 |  |  |

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