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Investments - Other Equity Securities (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Equity securities | $ 4,188 | $ 4,514 |
Unrealized gain (loss) on equity method investment | (21) | 98 | $ (165)
Sale of unrealized gains (losses) on equity securities | 0 | 0 | 0
Increase and decrease in equity securities without readily determinable fair value, amount | 0 | 0 |
Adjustments to carrying value of securities without readily determinable fair value |  |  | $ 67
Other Noncurrent Assets |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |
Equity securities | 314 | 494 |
Equity securities without readily determinable fair value | $ 319 | $ 309 |

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