Discontinued Operations - Summary of Financial Results (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating expenses:
Income (loss) from discontinued operations, net of income taxes	$ (2)	$ 73
Discontinued Operations, Disposed of by Sale | Classifieds
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	0	276
Cost of net revenues	0	30
Gross profit	0	246
Operating expenses:
Sales and marketing	0	87
Product development	0	43
General and administrative	0	27
Provision for transaction losses	0	2
Amortization of acquired intangible assets	0	0
Total operating expenses	0	159
Income (loss) from operations of discontinued operations	0	87
Interest and other, net	0	1
Income (loss) from discontinued operations before income taxes	0	88
Income tax benefit (provision)	0	(16)
Income (loss) from discontinued operations, net of income taxes	0	72
Discontinued Operations, Held-for-sale | eBay Korea
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net revenues	0	385
Cost of net revenues	0	217
Gross profit	0	168
Operating expenses:
Sales and marketing	0	141
Product development	0	14
General and administrative	2	12
Total operating expenses	2	167
Income (loss) from operations of discontinued operations	(2)	1
Interest and other, net	0	0
Income (loss) from discontinued operations before income taxes	(2)	1
Income tax benefit (provision)	0	0
Income (loss) from discontinued operations, net of income taxes	$ (2)	$ 1