Cover Page - USD ($)	12 Months Ended
	Dec. 31, 2021	Feb. 21, 2022	Jun. 30, 2021
Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2021
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37713
Entity Registrant Name	eBay Inc.
Entity Central Index Key	0001065088
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
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	376-7108
Title of 12(b) Security	Common stock
Entity Trading Symbol	EBAY
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filer	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 46,329,747,291
Entity Common Stock, Shares Outstanding		587,528,915
Documents Incorporated by Reference	DOCUMENTS INCORPORATED BY REFERENCE Part III incorporates information by reference from the definitive proxy statement for the registrant’s 2022 Annual Meeting of Stockholders.