Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Description of terms and conditions of option to extend lessee's operating lease. Includes, but is not limited to, information about option recognized as part of right-of-use asset and lease liability.

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Remaining lease term of operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of lessee's right to use underlying asset under operating lease.

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Leases - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Mar. 19, 2026	Dec. 31, 2025
Lessee Lease Description [Line Items]
Recognized ROU assets	$ 319		$ 319			$ 265
Current operating lease liabilities	52		52			41
Noncurrent operating lease liabilities	284		284			$ 242
Operating lease expense	18	$ 14	51	$ 45
Operating cash flows from operating leases			49	44
TEGNA Inc. [Member]
Lessee Lease Description [Line Items]
Recognized ROU assets					$ 70
Current operating lease liabilities					11
Noncurrent operating lease liabilities					$ 56
Location, Statement of Income, Balance [Axis]: us-gaap:DirectOperatingCosts
Lessee Lease Description [Line Items]
Operating lease expense	8	6	22	20
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense
Lessee Lease Description [Line Items]
Operating lease expense	$ 10	$ 8	$ 29	$ 25
Minimum [Member]
Lessee Lease Description [Line Items]
Leases option to extended lease term			two years
Maximum [Member]
Lessee Lease Description [Line Items]
Leases remaining lease term	88 years		88 years
Leases option to extended lease term			99 years