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Impairment, Restructuring and Other Costs - Narrative (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
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Jun. 30, 2020 Headcount | Aug. 01, 2020 USD ($) | May 02, 2020 USD ($) | Jan. 29, 2022 USD ($) Store | Jan. 30, 2021 USD ($) Store | Feb. 01, 2020 USD ($) Store
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Asset Impairments |  |  |  | $ 6 | $ 3,280 | $ 197
Goodwill impairment, COVID-19 |  |  |  |  | 3,080 |
Tangible Asset Impairment, COVID-19 |  |  |  |  | $ 200 |
Headcount reduction, COVID-19 | Headcount | 3,900 |  |  |  |  |
Expense for severance, COVID-19 |  | $ 154 |  |  |  |
Number of stores closed | Store |  |  |  | 8 | 37 | 30
Planned store closings | Store |  |  |  |  | 125 |
Macy's Reporting Unit |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Goodwill impairment, COVID-19 |  |  | $ 2,982 |  | $ 2,982 |
Bluemercury Reporting Unit |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Goodwill impairment, COVID-19 |  |  | $ 98 |  | $ 98 |

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- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123351718&loc=d3e2420-110228 + Details
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