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Intangible Assets and Goodwill - Schedule of Indefinite-lived Intangible Assets (Details) - USD ($) $ in Millions | Sep. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Goodwill [Line Items] |  |
FCC Licenses, Gross | $ 2,997 | $ 2,977
FCC Licenses, Accumulated Impairment | (48) | (48)
FCC Licenses, Net | 2,949 | $ 2,929
FCC Licenses, Current year acquisitions, Gross | 20 |
FCC Licenses, Current year acquisitions, Net | $ 20 |

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