Document and Entity Information	9 Months Ended
	Oct. 31, 2015 shares
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Oct. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q3
Trading Symbol	M
Entity Registrant Name	Macy's, Inc.
Entity Central Index Key	0000794367
Current Fiscal Year End Date	--01-30
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	314,367,528