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ACCOUNTING POLICIES - DESCRIPTION OF BUSINESS (Details) - USD ($) $ in Millions | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 01, 2020 | Nov. 09, 2019 | Aug. 17, 2019 | Feb. 02, 2019 | Nov. 10, 2018 | Aug. 18, 2018 | May 25, 2019 | May 26, 2018 | Feb. 01, 2020 | Feb. 02, 2019 | Feb. 03, 2018
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 | 371 days
Inventories |  |  |  |  |  |  |  |  |  |  |
Percentage of inventory valued at LIFO method | 91.00% |  |  | 90.00% |  |  |  |  | 91.00% | 90.00% |
Replacement cost over carrying value | $ 1,380 |  |  | $ 1,277 |  |  |  |  | $ 1,380 | $ 1,277 |

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