Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 17, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	EBAY INC
Entity Trading Symbol	EBAY
Entity Central Index Key	0001065088
Document Type	10-Q
Document Period End Date	Jun. 30, 2017
Amendment Flag	false
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filer	No
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		1,070,315,519