Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Feb. 03, 2018
Mar. 03, 2018
Jul. 29, 2017
Document Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Feb. 03, 2018    
Document Fiscal Year Focus 2017    
Document Fiscal Period Focus FY    
Trading Symbol M    
Entity Registrant Name Macy's, Inc.    
Entity Central Index Key 0000794367    
Current Fiscal Year End Date --02-03    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   305,322,583  
Entity Well-known Seasoned Issuer Yes    
Entity Public Float     $ 7,288,096,032
Entity Current Reporting Status Yes    
Entity Voluntary Filers No