Revenue - Sales From Merchandise Category (Details) - USD ($) $ in Millions	12 Months Ended
	Feb. 03, 2024	Jan. 28, 2023	Jan. 29, 2022
Disaggregation of Revenue [Line Items]
Net sales	$ 23,092	$ 24,442	$ 24,460
Other revenue	774	1,007	939
Total revenue	23,866	25,449	25,399
Women’s Accessories, Shoes, Cosmetics and Fragrances
Disaggregation of Revenue [Line Items]
Net sales	9,520	9,597	9,385
Women’s Apparel
Disaggregation of Revenue [Line Items]
Net sales	4,861	5,349	5,174
Men’s and Kids’
Disaggregation of Revenue [Line Items]
Net sales	4,918	5,297	5,247
Home/Other
Disaggregation of Revenue [Line Items]
Net sales	3,793	4,199	4,654
Credit Card Revenues, Net
Disaggregation of Revenue [Line Items]
Other revenue	619	863	832
Macy's Media Network Revenue, Net
Disaggregation of Revenue [Line Items]
Other revenue	$ 155	$ 144	$ 107