Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	May 04, 2024	Apr. 29, 2023	Feb. 03, 2024
Disaggregation of Revenue [Line Items]
Percentage of net sales revenue	97.00%	96.00%
Macy's sales to total company sales percentage	84.00%	85.00%
Percentage of digital sales	32.00%	32.00%
Contract with customer, refund liability	$ 193	$ 214	$ 136
Contract with customer, right to recover product	116	127	83
Contract with customer, liability, current	$ 349	$ 360	$ 384
Credit Card Intermediary
Disaggregation of Revenue [Line Items]
Agreement renewal option number of years	3 years