Investments - Summarized Financial Information of Investment (Details) - USD ($) $ in Millions |
3 Months Ended | 12 Months Ended | |
|---|---|---|---|
Mar. 31, 2024 |
Mar. 31, 2023 |
Dec. 31, 2023 |
|
| Schedule Of Investments [Roll Forward] | |||
| Opening balance at beginning of period | $ 4,474 | ||
| Unrealized change in fair value of equity investment | (246) | $ 160 | |
| Realized change in fair value of shares sold | 0 | 0 | |
| Closing balance at end of period | 4,240 | $ 4,474 | |
| Adevinta | |||
| Schedule Of Investments [Roll Forward] | |||
| Opening balance at beginning of period | 4,474 | ||
| Unrealized change in fair value of equity investment | (234) | 174 | |
| Closing balance at end of period | 4,240 | 4,474 | |
| GMarket | |||
| Schedule Of Investments [Roll Forward] | |||
| Opening balance at beginning of period | 335 | $ 431 | 431 |
| Unrealized change in fair value of equity investment | (6) | (96) | |
| Closing balance at end of period | $ 329 | $ 335 | |