Revenue - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 29, 2023	Jul. 30, 2022	Jul. 29, 2023	Jul. 30, 2022	Jan. 28, 2023
Disaggregation of Revenue [Line Items]
Percentage of net sales revenue	97.00%	96.00%	97.00%	96.00%
Macy's sales to total company sales percentage	85.00%	86.00%	85.00%	86.00%
Percentage of digital sales	30.00%	30.00%	31.00%	32.00%
Contract with customer, refund liability	$ 148	$ 186	$ 148	$ 186	$ 236
Contract with customer, right to recover product	94	112	94	112	152
Contract with customer, liability, current	$ 340	$ 386	$ 340	$ 386	$ 399
Credit Card Intermediary
Disaggregation of Revenue [Line Items]
Agreement renewal option number of years			3 years