Fair Value Measurement of Assets and Liabilities - Assets Measured Valued Using Unobservable Inputs (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||
| Fair Value, Asset, Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] | Gain (loss) on equity investments and warrant, net | Gain (loss) on equity investments and warrant, net |
| Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Warrant | ||
| Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] | ||
| Opening balance at beginning of period | $ 364 | $ 214 |
| Change in fair value | 158 | 150 |
| Exercise of options under warrant | (522) | 0 |
| Closing balance at end of period | $ 0 | $ 364 |