Discontinued Operations - Narrative (Details) - USD ($) shares in Millions, $ in Millions				3 Months Ended		12 Months Ended
	Nov. 14, 2021	Jun. 24, 2021	Feb. 13, 2020	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Nov. 18, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of business						$ 0	$ 0	$ (52)
Cost of net revenues						2,650	1,797	1,585
Intercompany
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues						5	14	20
Cost of net revenues						5	14	20
Viagogo
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction service agreement, fees				$ 34		34
Adevinta
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction service agreement, fees		$ 29
Net revenues					$ 450
Minimum | Adevinta
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transaction service agreement, term		6 months
Minimum | eBay Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition service agreement, period	6 months
Maximum | Adevinta
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition service agreement, extension period		6 months
Transaction service agreement, term		12 months
Maximum | eBay Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Transition service agreement, extension period	3 months
Adevinta
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Equity investment under fair value option		$ 10,800
Equity interest percentage		44.00%							25.00%
eBay Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on disposal of business						3,240	0	0
Income taxes of discontinued operations						335	20	14
StubHub
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on disposal of business						12	3,868	0
Income taxes of discontinued operations						10	896	10
Classifieds
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Pre-tax gain on disposal of business						12,534	0	0
Income taxes of discontinued operations						$ 2,185	$ 86	$ 172
Discontinued Operations | eBay Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Percentage of outstanding equity interests sold	80.01%
Proceeds from sale of business	$ 3,000
Pre-tax gain on disposal of business	3,200
Currency translation adjustment on disposal of business	81
Gain on net investment hedge settlement				$ 44
Income tax expense on disposal of business	$ 369
Discontinued Operations | StubHub
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds received for business disposal			$ 4,100
Proceeds received for business disposal, net of income taxes and transaction costs			3,200
Income taxes of discontinued operations			900
Gain on sale of business			$ 3,900
Discontinued Operations | Classifieds
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of business		$ 2,500
Pre-tax gain on disposal of business		12,500
Income tax expense on disposal of business		2,100
Consideration received for business disposal		$ 13,300
Number of shares to be received from the sale		540