Annual report pursuant to Section 13 and 15(d)

Document and Entity Information

Document and Entity Information - USD ($)
12 Months Ended
Jan. 28, 2017
Feb. 24, 2017
Jul. 30, 2016
Document Information [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Period End Date Jan. 28, 2017    
Document Fiscal Year Focus 2016    
Document Fiscal Period Focus FY    
Trading Symbol M    
Entity Registrant Name Macy's, Inc.    
Entity Central Index Key 0000794367    
Current Fiscal Year End Date --01-28    
Entity Filer Category Large Accelerated Filer    
Entity Common Stock, Shares Outstanding   304,258,647  
Entity Well-known Seasoned Issuer Yes    
Entity Public Float     $ 11,052,402,000
Entity Current Reporting Status Yes    
Entity Voluntary Filers No