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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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