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Document and Entity Information - USD ($)	12 Months Ended
	Dec. 26, 2015	Jan. 23, 2016	Jun. 26, 2015
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 26, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	FY
Trading Symbol	ODP
Entity Registrant Name	OFFICE DEPOT INC
Entity Central Index Key	0000800240
Current Fiscal Year End Date	--12-26
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		548,986,561
Entity Public Float			$ 4,829,125,471

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