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Document and Entity Information	3 Months Ended
	Jan. 31, 2014	Feb. 26, 2014 Class A Common Stock [Member]	Feb. 26, 2014 Class B Common Stock [Member]
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jan. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	Q1
Entity Registrant Name	GREIF INC
Entity Central Index Key	0000043920
Current Fiscal Year End Date	--10-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		25,539,457	22,119,966

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