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Fair Value Measurement of Assets and Liabilities - Narrative (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Nov. 14, 2021
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GMarket |  |
Schedule of Equity Method Investments [Line Items] |  |
Investment balance | $ 725 | $ 728
Equity investments, right held, term (in years) |  | 2 years
Discontinued Operations, Disposed of by Sale | eBay Korea |  |
Schedule of Equity Method Investments [Line Items] |  |
Percentage of outstanding equity interests sold |  | 80.01%

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