Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheet) (Details) - USD ($) $ in Millions	Aug. 01, 2020	Feb. 01, 2020	Aug. 03, 2019
Current Assets:
Cash and cash equivalents	$ 1,395	$ 685	$ 674
Receivables	184	409	240
Merchandise inventories	3,582	5,188	5,029
Prepaid expenses and other current assets	470	528	603
Income tax receivable			0
Total Current Assets	5,631	6,810	6,546
Property and Equipment - net	6,279	6,633	6,483
Right of Use Assets	3,035	2,668	2,636
Goodwill	828	3,908	3,908
Other Intangible Assets - net	438	439	440
Other Assets	1,403	714	728
Deferred Income Taxes	0	0	0
Intercompany Receivable	0	0	0
Investment in Subsidiaries	0	0	0
Total Assets	17,614	21,172	20,741
Current Liabilities:
Short-term debt	539	539	6
Merchandise accounts payable	1,409	1,682	1,674
Accounts Payable and Accrued Liabilities	2,906	3,448	2,739
Income taxes	0	81	20
Total Current Liabilities	4,854	5,750	4,439
Long-Term Debt	4,851	3,621	4,680
Long-Term Lease Liabilities	3,269	2,918	2,836
Intercompany Payable	0	0	0
Deferred Income Taxes	921	1,169	1,206
Other Liabilities	1,395	1,337	1,265
Shareholders' Equity, Macy's, Inc.	2,324	6,377	6,315
Total Liabilities and Shareholders' Equity	17,614	21,172	20,741
Parent
Current Assets:
Cash and cash equivalents	737	413	320
Receivables	0	0	1
Merchandise inventories	0	0	0
Prepaid expenses and other current assets	15	0	0
Income tax receivable			39
Total Current Assets	752	413	360
Property and Equipment - net	0	0	0
Right of Use Assets	0	0	0
Goodwill	0	0	0
Other Intangible Assets - net	0	0	0
Other Assets	641	0	0
Deferred Income Taxes	12	12	9
Intercompany Receivable	314	2,675	2,564
Investment in Subsidiaries	1,982	3,433	3,484
Total Assets	3,701	6,533	6,417
Current Liabilities:
Short-term debt	0	0	0
Merchandise accounts payable	0	0	0
Accounts Payable and Accrued Liabilities	111	126	74
Income taxes		5	0
Total Current Liabilities	111	131	74
Long-Term Debt	1,240	0	0
Long-Term Lease Liabilities	0	0	0
Intercompany Payable	0	0	0
Deferred Income Taxes	0	0	0
Other Liabilities	26	25	28
Shareholders' Equity, Macy's, Inc.	2,324	6,377	6,315
Total Liabilities and Shareholders' Equity	3,701	6,533	6,417
Subsidiary Issuer
Current Assets:
Cash and cash equivalents	35	59	100
Receivables	40	83	44
Merchandise inventories	187	2,239	2,138
Prepaid expenses and other current assets	90	118	139
Income tax receivable			0
Total Current Assets	352	2,499	2,421
Property and Equipment - net	2,463	3,103	3,162
Right of Use Assets	990	611	660
Goodwill	661	3,326	3,326
Other Intangible Assets - net	4	4	4
Other Assets	77	37	39
Deferred Income Taxes	0	0	0
Intercompany Receivable	0	0	0
Investment in Subsidiaries	3,907	2,796	2,957
Total Assets	8,454	12,376	12,569
Current Liabilities:
Short-term debt	539	539	6
Merchandise accounts payable	223	702	717
Accounts Payable and Accrued Liabilities	815	909	754
Income taxes		11	47
Total Current Liabilities	1,577	2,161	1,524
Long-Term Debt	3,611	3,621	4,680
Long-Term Lease Liabilities	882	543	594
Intercompany Payable	2,628	3,803	3,207
Deferred Income Taxes	370	595	643
Other Liabilities	426	414	364
Shareholders' Equity, Macy's, Inc.	(1,040)	1,239	1,557
Total Liabilities and Shareholders' Equity	8,454	12,376	12,569
Other Subsidiaries
Current Assets:
Cash and cash equivalents	623	213	254
Receivables	144	326	195
Merchandise inventories	3,395	2,949	2,891
Prepaid expenses and other current assets	376	410	464
Income tax receivable			0
Total Current Assets	4,538	3,898	3,804
Property and Equipment - net	3,816	3,530	3,321
Right of Use Assets	2,401	2,057	1,976
Goodwill	167	582	582
Other Intangible Assets - net	434	435	436
Other Assets	685	677	689
Deferred Income Taxes	0	0	0
Intercompany Receivable	2,314	1,128	643
Investment in Subsidiaries	0	0	0
Total Assets	14,355	12,307	11,451
Current Liabilities:
Short-term debt	0	0	0
Merchandise accounts payable	1,186	980	957
Accounts Payable and Accrued Liabilities	2,048	2,413	1,911
Income taxes		65	12
Total Current Liabilities	3,234	3,458	2,880
Long-Term Debt	0	0	0
Long-Term Lease Liabilities	2,686	2,375	2,242
Intercompany Payable	0	0	0
Deferred Income Taxes	563	586	572
Other Liabilities	943	898	873
Shareholders' Equity, Macy's, Inc.	6,929	4,990	4,884
Total Liabilities and Shareholders' Equity	14,355	12,307	11,451
Consolidation, Eliminations [Member]
Current Assets:
Cash and cash equivalents	0	0	0
Receivables	0	0	0
Merchandise inventories	0	0	0
Prepaid expenses and other current assets	(11)	0	0
Income tax receivable			(39)
Total Current Assets	(11)	0	(39)
Property and Equipment - net	0	0	0
Right of Use Assets	(356)	0	0
Goodwill	0	0	0
Other Intangible Assets - net	0	0	0
Other Assets	0	0	0
Deferred Income Taxes	(12)	(12)	(9)
Intercompany Receivable	(2,628)	(3,803)	(3,207)
Investment in Subsidiaries	(5,889)	(6,229)	(6,441)
Total Assets	(8,896)	(10,044)	(9,696)
Current Liabilities:
Short-term debt	0	0	0
Merchandise accounts payable	0	0	0
Accounts Payable and Accrued Liabilities	(68)	0	0
Income taxes		0	(39)
Total Current Liabilities	(68)	0	(39)
Long-Term Debt	0	0	0
Long-Term Lease Liabilities	(299)	0	0
Intercompany Payable	(2,628)	(3,803)	(3,207)
Deferred Income Taxes	(12)	(12)	(9)
Other Liabilities	0	0	0
Shareholders' Equity, Macy's, Inc.	(5,889)	(6,229)	(6,441)
Total Liabilities and Shareholders' Equity	$ (8,896)	$ (10,044)	$ (9,696)