VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Variable Interest Entity [Line Items]
Equity method investments	$ 82,000,000		$ 82,000,000		$ 128,000,000
Consolidated VIEs
Variable Interest Entity [Line Items]
Variable interest entities outsourcing agreement initial term			5 years
Consolidated VIEs | Consolidation, Eliminations
Variable Interest Entity [Line Items]
Liabilities associated with the certain outsourcing agreements and purchase options	129,000,000		$ 129,000,000		130,000,000
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Gain from equity investments	(55,000,000)	$ 5,000,000	(77,000,000)	$ 43,000,000
Variable Interest Entity, Not Primary Beneficiary | DSIH
Variable Interest Entity [Line Items]
Equity method investments	0		0
Sinclair Broadcast Group, LLC
Variable Interest Entity [Line Items]
Equity method investments	2,000,000		$ 2,000,000		1,000,000
Sinclair Broadcast Group, LLC | Consolidated VIEs
Variable Interest Entity [Line Items]
Variable interest entities outsourcing agreement initial term			5 years
Sinclair Broadcast Group, LLC | Consolidated VIEs | Consolidation, Eliminations
Variable Interest Entity [Line Items]
Liabilities associated with the certain outsourcing agreements and purchase options	129,000,000		$ 129,000,000		$ 130,000,000
Sinclair Broadcast Group, LLC | Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Gain from equity investments				$ 37,000,000
Sinclair Broadcast Group, LLC | Variable Interest Entity, Not Primary Beneficiary | DSIH
Variable Interest Entity [Line Items]
Equity method investments	$ 0		$ 0