Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Aug. 01, 2020	Aug. 01, 2020
Goodwill impairment, COVID-19		$ 3,080
Macy's Reporting Unit
Goodwill impairment, COVID-19	$ 10	2,982
Bluemercury Reporting Unit
Goodwill impairment, COVID-19		$ 98