CONDENSED CONSOLIDATING FINANCIAL STATEMENTS - Narrative (Details) $ in Millions	Mar. 31, 2022 USD ($)
Debt Instrument [Line Items]
Consolidated total debt	$ 4,398
Subsidiary Issuer
Debt Instrument [Line Items]
Consolidated total debt	4,381
Amount of debt guaranteed by parent	$ 4,344
5.875% Senior Notes due 2026 (d) \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.875%
5.875% Senior Notes due 2026 (d) \| Sinclair Television Group, Inc. \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.875%
5.125% Senior Notes due 2027 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.125%
5.125% Senior Notes due 2027 \| Sinclair Television Group, Inc. \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.125%
5.500% Senior Notes due 2030 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.50%
5.500% Senior Notes due 2030 \| Sinclair Television Group, Inc. \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	5.50%
4.125% Senior Secured Notes due 2030 \| Senior Notes
Debt Instrument [Line Items]
Interest rate (as a percent)	4.125%

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Amount of short-term and long-term debt and lease obligation.

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Contractual interest rate for funds borrowed, under the debt agreement.

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