Non-marketable Equity Securities - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Investments, Debt and Equity Securities [Abstract] | ||
| Equity securities without readily determinable fair value, impairment and downward price adjustment, current year amount | $ 101 | $ 447 |