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Goodwill and Other Intangible Assets - Narrative (Details) $ in Millions | 9 Months Ended
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Oct. 31, 2020 USD ($)
Goodwill impairment, COVID-19 | $ 3,080
Macy's Reporting Unit |
Goodwill impairment, COVID-19 | 2,982
Bluemercury Reporting Unit |
Goodwill impairment, COVID-19 | $ 98

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