Investments - Other Equity Investments Under The Fair Value Option (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022	Nov. 14, 2021
Other equity investments
Schedule of Investments [Line Items]
Equity investments	$ 47			$ 47		$ 30
Long-term investments:
Schedule of Investments [Line Items]
Equity investments	395			395		461
Gmarket
Schedule of Investments [Line Items]
Ownership percentage after sale			19.99%
Equity investments, right held, term (in years)			2 years				2 years
Investment balance			$ 728
Unrealized loss on equity securities	43	$ 40		83	$ 299
Gmarket | Long-term investments:
Schedule of Investments [Line Items]
Equity investments	$ 348			$ 348		$ 431
Discontinued Operations, Disposed of by Sale | eBay Korea
Schedule of Investments [Line Items]
Percentage of outstanding equity interests sold			80.01%