Document and Entity Information	6 Months Ended
	Jul. 29, 2017 shares
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 29, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
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	304,558,965