Investments - Equity Investment Under the Fair Value Option (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2021	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Schedule of Investments [Line Items]
Unrealized loss on equity securities	$ 29	$ 77		$ 40	$ 259
Other equity investments
Schedule of Investments [Line Items]
Equity investment in Adevinta	40			40		$ 30
Long-term investments:
Schedule of Investments [Line Items]
Equity investment in Adevinta	431			431		461
GMarket
Schedule of Investments [Line Items]
Ownership percentage after sale			19.99%
Investment balance			$ 728
Retained investment, rights, period (in years)			2 years
GMarket | Long-term investments:
Schedule of Investments [Line Items]
Equity investment in Adevinta	$ 391			$ 391		$ 431
Discontinued Operations, Disposed of by Sale | eBay Korea
Schedule of Investments [Line Items]
Percentage of outstanding equity interests sold			80.01%