Document and Entity Information In Millions, unless otherwise specified	6 Months Ended
	Jun. 15, 2013	Jul. 17, 2013
Document and Entity Information [Abstract]
Entity Registrant Name	SAFEWAY INC
Entity Central Index Key	0000086144
Current Fiscal Year End Date	--12-28
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 15, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		241.3