Investments - Other Equity Investment Under the Fair Value Option, Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2023	Dec. 31, 2022
GMarket
Schedule of Investments [Line Items]
Percentage of outstanding equity interests retained	19.99%
Retained investment, rights, period	2 years
Equity investment under fair value option	$ 728
Investments | Fair Value, Measurements, Recurring
Schedule of Investments [Line Items]
Warrant		$ 47	$ 30
Discontinued Operations | eBay Korea
Schedule of Investments [Line Items]
Percentage of outstanding equity interests sold	80.01%