Goodwill and Other Intangible Assets - Narrative (Details) $ in Millions	3 Months Ended
	May 02, 2020 USD ($)
Goodwill impairment, COVID-19	$ 3,070
Macy's Reporting Unit
Goodwill impairment, COVID-19	2,972
Bluemercury Reporting Unit
Goodwill impairment, COVID-19	$ 98