Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Jul. 15, 2019
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	001-37713
Entity Registrant Name	EBAY INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0430924
Entity Address, Address Line One	2025 Hamilton Avenue
Entity Address, City or Town	San Jose
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	95125
City Area Code	(408)
Local Phone Number	376-7008
Entity Current Reporting Status	Yes
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		838,763,599
Entity Central Index Key	0001065088
Common stock
Entity Information [Line Items]
Title of 12(b) Security	Common stock
Entity Trading Symbol	EBAY
Security Exchange Name	NASDAQ
6.000% Senior notes due 2056
Entity Information [Line Items]
Title of 12(b) Security	6.00% Notes due 2056
Entity Trading Symbol	EBAYL
Security Exchange Name	NASDAQ