Investments - Schedule of Unrealized Gains and Losses on Equity Investments (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Investments [Abstract] | ||||
| Net gains (losses) recognized during the period on equity investments | $ 0 | $ (4) | $ 11 | $ (6) |
| Less: Net gains recognized on equity investments sold during the period | 0 | 0 | 0 | 2 |
| Total unrealized gains (losses) on equity investments held, end of period | $ 0 | $ (4) | $ 11 | $ (8) |