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Cover Page - USD ($)
 12 Months Ended
Jan. 28, 2023
Feb. 24, 2023
Jul. 29, 2022
Cover [Abstract]      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Jan. 28, 2023    
Current Fiscal Year End Date --01-28    
Document Transition Report false    
Entity File Number 1-13536    
Entity Registrant Name Macy's, Inc.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 13-3324058    
Entity Address, Address Line One 151 West 34th Street    
Entity Address, City or Town New York    
Entity Address, State or Province NY    
Entity Address, Postal Zip Code 10001    
City Area Code 212    
Local Phone Number 494-1621    
Title of 12(b) Security Common Stock, $.01 par value per share    
Trading Symbol M    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Emerging Growth Company false    
Entity Small Business false    
ICFR Auditor Attestation Flag true    
Entity Shell Company false    
Entity Public Float     $ 4,782,994,256
Entity Common Stock, Shares Outstanding   271,395,080  
Documents Incorporated by Reference
DocumentParts Into Which Incorporated
Proxy Statement for the Annual Meeting of Stockholders to be held May 19, 2023Part III
    
Entity Central Index Key 0000794367    
Document Fiscal Year Focus 2022    
Document Fiscal Period Focus FY    
Amendment Flag false