Assets and Liabilities Measured at Fair Value - Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Jun. 30, 2023 |
Dec. 31, 2022 |
|
| Assets and liabilities measured at fair value | ||
| Indemnification payment from liberty broadband | $ 25 | |
| Recurring | ||
| Assets and liabilities measured at fair value | ||
| Cash equivalents | 944 | $ 938 |
| Indemnification asset | 10 | 50 |
| Debt | 287 | 614 |
| Recurring | Fair Value, Inputs, Level 1 | ||
| Assets and liabilities measured at fair value | ||
| Cash equivalents | 944 | 938 |
| Recurring | Significant Other Observable Inputs (Level 2) | ||
| Assets and liabilities measured at fair value | ||
| Indemnification asset | 10 | 50 |
| Debt | $ 287 | $ 614 |
| 1.75% Exchangeable Senior Debentures due 2046 | ||
| Assets and liabilities measured at fair value | ||
| Interest rate (as a percent) | 1.75% | |
| Indemnification payment from liberty broadband | $ 25 | |
| Debt exchanged | $ 251 |