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DOCUMENT AND ENTITY INFORMATION	3 Months Ended
	Jul. 28, 2013	Aug. 30, 2013
Entity Information [Line Items]
Entity Registrant Name	SMITHFIELD FOODS INC
Entity Central Index Key	0000091388
Current Fiscal Year End Date	--04-28
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jul. 28, 2013
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		139,211,960

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