Document and Entity Information - shares	4 Months Ended
	May. 23, 2015	Jun. 26, 2015
Document and Entity Information
Entity Registrant Name	KROGER CO
Entity Central Index Key	0000056873
Document Type	10-Q
Document Period End Date	May 23, 2015
Amendment Flag	false
Current Fiscal Year End Date	--01-30
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		485,711,614
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1