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v3.23.3

Investments - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Investments, Debt and Equity Securities [Abstract] |  |  |  |  |
Available-for-sale debt securities | $ 0 |  | $ 0 |  | $ 0
Sales and maturities of short-term investments | 325,000,000 | $ 885,000,000 | 1,828,000,000 | $ 3,149,000,000 |
Debt securities in an unrealized loss position | 1,097,000,000 |  | 1,097,000,000 |  | 748,000,000
Debt securities, unrealized loss |  |  | 24,000,000 |  | 19,000,000
Debt securities, available-for-sale, continuous unrealized loss position, 12 months or longer, accumulated loss | 212,000,000 |  | 212,000,000 |  | 92,000,000
Debt securities, continuous unrealized loss position, 12 months or longer | 18,000,000 |  | 18,000,000 |  | 13,000,000
Equity securities without readily determinable fair value, carrying value | 79,000,000 |  | 79,000,000 |  | 75,000,000
Upward adjustments | 0 | 0 | 0 | 0 |
Downward adjustments | 0 | 0 | 0 | 0 |
Cumulative impairment of investments | 56,000,000 |  | 56,000,000 |  | 56,000,000
Equity method investments | 8,000,000 |  | 8,000,000 |  | $ 14,000,000
Unrealized losses | 1,000,000 | 1,000,000 | 6,000,000 | 4,000,000 |
Impairment in equity method investments | $ 0 | $ 0 | $ 0 | $ 0 |

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