Fair Value Measurement of Assets and Liabilities - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2021	Nov. 14, 2021
GMarket
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value of investment	$ 725	$ 728
Discontinued Operations \| eBay Korea
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Percentage of outstanding equity interests sold		80.01%

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