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Commitments and Contingencies - Additional Information (Details) $ in Millions							3 Months Ended		6 Months Ended
	Mar. 23, 2026 NoticeOfAppeal	Mar. 21, 2026 NoticeOfAppeal	Mar. 18, 2026 State	Mar. 02, 2026 Complaint	Sep. 19, 2019 USD ($)	Jun. 28, 2016 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025 USD ($)	Aug. 21, 2009
Loss Contingency, Information about Litigation Matters [Abstract]
Income tax expense (benefit)							$ 64	$ 39	$ 57	$ 80
FCC [Member]
Loss Contingency, Information about Litigation Matters [Abstract]
Percentage limit of television households reach through attributable interests in television stations									39.00%
Percentage limit of UHF stations on market pecentage of national audience									50.00%
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									295
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
Income tax expense (benefit)									$ (47)
Number of coalition of states \| State			8
Number of state cable associates filed notice of appeal \| NoticeOfAppeal		6
Number of public interest parties filed notice of appeal \| NoticeOfAppeal	5
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							361		$ 361
Commitment under senior secured credit facility at carrying value							$ 347		$ 347
Faul Litigation [Member]
Loss Contingency, Information about Litigation Matters [Abstract]
Number of complaints filed \| Complaint				3