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Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions |  |  |  | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Aug. 18, 2025 | Sep. 19, 2019 | Jun. 28, 2016 | Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024 | Aug. 21, 2009
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Income tax expense (benefit) |  |  |  | $ 31 | $ 64 | $ 111 | $ 169 |  |
Chicago Cubs Transactions [Member] | Northside Entertainment Holdings LLC [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Ownership interest percentage |  |  |  |  |  |  |  |  | 95.00%
Chicago Cubs Transactions [Member] | Chicago Entertainment Ventures, LLC [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Ownership interest percentage |  |  |  |  |  |  |  |  | 5.00%
Tribune [Member] | Internal Revenue Service ("IRS") [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Increase in federal and state taxes payable |  |  |  |  |  | 17 |  |  |
Increase in deferred income tax liability |  |  |  |  |  | 69 |  |  |
Unrecognized tax benefits |  |  |  | 11 |  | 11 |  | $ 11 |
Tribune [Member] | Chicago Cubs Transactions [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Income tax penalties expense |  |  | $ 73 |  |  |  |  |  |
Income tax interest expense |  |  |  |  |  | 261 |  |  |
Estimated federal and state income taxes |  |  |  |  |  | $ 225 |  |  |
Income tax examination, estimate of possible taxes |  |  | $ 182 |  |  |  |  |  |
Tax payments |  | $ 154 |  |  |  |  |  |  |
TEGNA Inc. [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Merger agreement date | Aug. 18, 2025 |  |  |  |  | Aug. 18, 2025 |  |  |
Multi District Litigation [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Loss contingency dismissal date |  |  |  |  |  | Sep. 05, 2019 |  |  |
Loss contingency lawsuit filing date |  |  |  |  |  | Apr. 03, 2019 |  |  |
Multi District Litigation [Member] | Second Amended Complaint [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Loss contingency dismissal date |  |  |  |  |  | Oct. 08, 2019 |  |  |
Loss contingency lawsuit filing date |  |  |  |  |  | Sep. 09, 2019 |  |  |
Financial Guarantee of Mission Debt [Member] |  |  |  |  |  |  |  |  |
Loss Contingency, Information about Litigation Matters [Abstract] |  |  |  |  |  |  |  |  |
Maximum commitment under senior secured credit facility |  |  |  | 363 |  | $ 363 |  |  |
Commitment under senior secured credit facility at carrying value |  |  |  | $ 350 |  | $ 350 |  |  |

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