Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	May 03, 2025	May 04, 2024	Feb. 01, 2025
Disaggregation of Revenue [Line Items]
Percentage of net sales revenue	96.00%	97.00%
Macy's sales to total company sales percentage	83.00%	84.00%
Percentage of digital sales	33.00%	32.00%
Contract with customer, refund liability	$ 182	$ 193	$ 114
Contract with customer, right to recover product	109	116	72
Contract with customer, liability, current	$ 320	$ 349	$ 353
Credit Card Intermediary
Disaggregation of Revenue [Line Items]
Agreement renewal option number of years	3 years