FAIR VALUE MEASUREMENTS - Schedule of Carrying Value and Fair Value of Notes and Debentures (Details) - USD ($)		12 Months Ended
	Nov. 18, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Feb. 07, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		$ 162,000,000	$ 234,000,000
Debt discount and deferred financing costs		$ 46,000,000	56,000,000
Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount					$ 600,000,000
Fixed interest rate					3.90%
Bally's
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Option purchase price, starting at (in dollars per share)	$ 30
Option purchase price, maximum (in dollars per share)	45
Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		5.50%
Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		5.125%
Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		4.125%
Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		$ 6,000,000	6,000,000
Deferred compensation assets		45,000,000	41,000,000
Deferred compensation liabilities		44,000,000	35,000,000
Level 1 | Fair Value | STG Money Market Funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market funds		588,000,000	741,000,000
Level 2 | Carrying Value | Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		7,000,000	8,000,000
Level 2 | Carrying Value | Debt of non-media subsidiaries
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		15,000,000	16,000,000
Level 2 | Carrying Value | Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		485,000,000	500,000,000
Level 2 | Carrying Value | Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		274,000,000	282,000,000
Level 2 | Carrying Value | Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		737,000,000	750,000,000
Level 2 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		110,000,000	153,000,000
Level 2 | Fair Value | Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap		1,000,000	0
Level 2 | Fair Value | Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		7,000,000	8,000,000
Level 2 | Fair Value | Debt of non-media subsidiaries
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		15,000,000	16,000,000
Level 2 | Fair Value | Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		362,000,000	347,000,000
Level 2 | Fair Value | Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		248,000,000	230,000,000
Level 2 | Fair Value | Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		521,000,000	560,000,000
Level 3 | Carrying Value | Options and Warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement adjustments		(29,000,000)	(112,000,000)	$ (50,000,000)
Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		46,000,000	75,000,000
Sinclair Broadcast Group, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities			234,000,000
Debt discount and deferred financing costs		$ 46,000,000	56,000,000
Sinclair Broadcast Group, LLC | Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount					$ 600,000,000
Fixed interest rate					3.90%
Sinclair Broadcast Group, LLC | Bally's
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Option purchase price, starting at (in dollars per share)	30
Option purchase price, maximum (in dollars per share)	$ 45
Sinclair Broadcast Group, LLC | Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		5.50%
Sinclair Broadcast Group, LLC | Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		5.125%
Sinclair Broadcast Group, LLC | Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)		4.125%
Sinclair Broadcast Group, LLC | Level 1 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		$ 0	6,000,000
Deferred compensation assets		0	41,000,000
Deferred compensation liabilities		0	35,000,000
Sinclair Broadcast Group, LLC | Level 1 | Fair Value | STG Money Market Funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market funds		309,000,000	741,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		7,000,000	8,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Debt of non-media subsidiaries
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		0	16,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		485,000,000	500,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		274,000,000	282,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		737,000,000	750,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Term Loan | STG Term Loan B-2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		1,215,000,000	1,258,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Term Loan | STG Term Loan B-3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		722,000,000	729,000,000
Sinclair Broadcast Group, LLC | Level 2 | Carrying Value | Term Loan | STG Term Loan B-4
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		739,000,000	746,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		0	153,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap		1,000,000	0
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		7,000,000	8,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Debt of non-media subsidiaries
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		0	16,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Notes | 5.500% Unsecured Notes, due March 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		362,000,000	347,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Notes | 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		248,000,000	230,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Notes | 4.125% Senior Secured Notes, due December 1, 2030
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		521,000,000	560,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Term Loan | STG Term Loan B-2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		1,124,000,000	1,198,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Term Loan | STG Term Loan B-3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		595,000,000	692,000,000
Sinclair Broadcast Group, LLC | Level 2 | Fair Value | Term Loan | STG Term Loan B-4
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument		602,000,000	709,000,000
Sinclair Broadcast Group, LLC | Level 3 | Carrying Value | Options and Warrants
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Measurement adjustments		(25,000,000)	(112,000,000)	$ (50,000,000)
Sinclair Broadcast Group, LLC | Level 3 | Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments in equity securities		$ 0	$ 75,000,000