Discontinued Operations - Summary of Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Classifieds | Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents		$ 23
Accounts receivable, net		117
Other current assets		30
Long-term investments		32
Property and equipment, net		31
Goodwill		465
Intangible assets, net		35
Operating lease right-of-use assets		20
Deferred tax assets		435
Total assets classified as discontinued operations in the condensed consolidated balance sheet		1,188
Accounts payable		18
Accrued expenses and other current liabilities		104
Deferred revenue		4
Income taxes payable		35
Operating lease liabilities		11
Deferred tax liabilities		278
Other liabilities		2
Total liabilities classified as discontinued operations in the condensed consolidated balance sheet		452
eBay Korea | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash and cash equivalents	$ 162	327
Short-term investments	0	6
Accounts receivable, net	49	50
Customer accounts and funds receivable	590	649
Other current assets	61	45
Property and equipment, net	63	66
Goodwill	383	390
Operating lease right-of-use assets	69	79
Deferred tax assets	22	9
Other assets	15	14
Total assets classified as discontinued operations in the condensed consolidated balance sheet	1,414	1,626
Short-term debt	11	12
Accounts payable	58	54
Customer accounts and funds payable	559	673
Accrued expenses and other current liabilities	70	91
Deferred revenue	11	12
Income taxes payable	6	13
Operating lease liabilities	54	64
Deferred tax liabilities	12
Long-term debt	1	5
Other liabilities	4	3
Total liabilities classified as discontinued operations in the condensed consolidated balance sheet	$ 786	$ 918