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ACCOUNTING POLICIES - DESCRIPTION OF BUSINESS (Details) - USD ($) $ in Millions | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 30, 2021 | Nov. 07, 2020 | Aug. 15, 2020 | Feb. 01, 2020 | Nov. 09, 2019 | Aug. 17, 2019 | May 23, 2020 | May 25, 2019 | Jan. 30, 2021 | Feb. 01, 2020 | Feb. 02, 2019
Fiscal Year |  |  |  |  |  |  |  |  |  |  |
Length of fiscal period | 84 days | 84 days | 84 days | 84 days | 84 days | 84 days | 112 days | 112 days | 364 days | 364 days | 364 days
Inventories |  |  |  |  |  |  |  |  |  |  |
Percentage of inventory valued at LIFO method | 92.00% |  |  | 91.00% |  |  |  |  | 92.00% | 91.00% |
Replacement cost over carrying value | $ 1,373 |  |  | $ 1,380 |  |  |  |  | $ 1,373 | $ 1,380 |
Reduction of inventory before tax |  |  |  |  |  |  |  |  | 76 |  |
Reduction of inventory |  |  |  |  |  |  |  |  | $ 58 |  |

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