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QUARTERLY DATA (UNAUDITED) - NARRATIVE (Details) $ in Millions |  |  | 3 Months Ended | 4 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 26, 2019 USD ($) | Mar. 13, 2019 USD ($) | Feb. 01, 2020 USD ($) store | Nov. 09, 2019 USD ($) | Aug. 17, 2019 USD ($) | Feb. 02, 2019 USD ($) | Nov. 10, 2018 USD ($) | Aug. 18, 2018 USD ($) | May 25, 2019 USD ($) | May 26, 2018 USD ($) | Feb. 01, 2020 USD ($) store | Feb. 02, 2019 USD ($) | Feb. 03, 2018 USD ($)
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Revaluation of contingent consideration |  |  | $ (51) | $ 4 | $ 2 | $ 33 |  |  | $ (24) |  | $ (69) | $ 33 |
Revaluation of contingent consideration, net of tax |  |  | (36) | 3 | 2 | 26 |  |  | (18) |  |  |  |
Severance expenses, before tax |  |  |  | 80 |  |  |  |  |  |  | 80 |  |
Severance expenses, net of tax |  |  |  | 61 |  |  |  |  |  |  | $ 61 |  |
Transformation cost before tax |  |  | 52 |  |  |  |  |  |  |  |  |  |
Transformation cost net of tax |  |  | $ 37 |  |  |  |  |  |  |  |  |  |
Number of planned store closures | store |  |  | 35 |  |  |  |  |  |  |  | 35 |  |
Reduction to depreciation and amortization expenses net of tax, related to held for sale assets |  |  |  |  |  |  |  |  |  | $ 14 |  |  |
Reduction to depreciation and amortization expenses net of tax, related to held for sale assets, net of tax |  |  |  |  |  |  |  |  |  | 11 |  |  |
Gain on sale of businesses |  |  |  |  |  |  |  | $ 11 | 176 | 1,771 | $ 176 | 1,782 |
Gain on sale of business, net of tax |  |  |  |  |  |  |  |  |  | 1,352 |  |  |
Mark to market gain on Ocado securities |  |  | $ (9) | 106 | (45) | 75 | $ (100) | 216 | 106 | 36 | 157 | 228 |
Mark to market gain (loss) on Ocado securities, net of tax |  |  | (6) | 81 | (36) | 59 | $ (77) | 164 | 80 | 27 |  |  |
Asset Impairment Charges |  |  | 0 |  |  | 0 |  |  |  |  |  |  |
Impairment of financial instrument |  |  |  |  |  | 42 |  |  |  |  |  |  |
Impairment of financial instrument, net of tax |  |  |  |  |  | 33 |  |  |  |  |  |  |
Turkey Hill Dairy Business | Disposed by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of businesses | $ 106 |  |  |  |  |  |  |  | 106 |  |  |  |
Gain on sale of business, net of tax | $ 80 |  |  |  |  |  |  |  | 80 |  |  |  |
You Technology business unit | Disposed by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of businesses |  | $ 70 |  |  |  |  |  |  | 70 |  |  |  |
Gain on sale of business, net of tax |  | $ 52 |  |  |  |  |  |  | 52 |  |  |  |
Convenience Store Business | Disposed by Sale |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of businesses |  |  |  |  |  |  |  | 11 |  |  |  |  |
Gain on sale of business, net of tax |  |  |  |  |  |  |  | $ 8 |  |  |  |  |
Lucky's Market | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  | 238 |  |  |  |  |  |  |  |  |
Impairment charges attributable to The Kroger Co. |  |  |  | 131 |  |  |  |  |  |  | 305 |  |
Impairment charges attributable to The Kroger Co., net of tax |  |  |  | 100 |  |  |  |  |  |  | 225 |  |
Non-cash charges, before tax |  |  | 174 |  |  |  |  |  |  |  |  |  |
Non-cash charges, net of tax |  |  | 125 |  |  |  |  |  |  |  |  |  |
Multi-employer pension funds |  |  |  |  |  |  |  |  |  |  |  |  |
Quarterly Data |  |  |  |  |  |  |  |  |  |  |  |  |
Charge (before-tax) related to pension plan agreements |  |  | 4 | 45 | 27 | 168 |  |  | 59 | 13 | 135 | 155 | $ 550
Charge (after-tax) related to pension plan agreements |  |  | $ 3 | $ 35 | $ 22 | $ 131 |  |  | $ 44 | $ 10 | $ 104 | $ 121 | $ 360

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