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Investments - Other Equity Securities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Equity securities | $ 4,514 | $ 815 |
Unrealized gain (loss) on equity method investment | 98 | (165) | $ 161
Equity securities without readily determinable fair value, gains due to upward adjustments |  |  | 152
Equity securities, gains realized on disposition |  |  | $ 41
Equity securities without readily determinable fair value, downward adjustments to carrying value |  | 67 |
Other Noncurrent Assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Equity securities | 494 | 480 |
Equity securities without readily determinable fair value | $ 309 | $ 233 |

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