FAIR VALUE MEASUREMENTS - Schedule of Carrying Value and Fair Value of Notes and Debentures (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt discount and deferred financing costs	$ 36	$ 46
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%	5.50%
Notes \| 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate (as a percent)	5.13%	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)	4.13%	4.125%
Level 1 \| Fair Value \| STG Money Market Funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market funds	$ 601	$ 588
Level 2 \| Carrying Value \| Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	7	7
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	485
Level 2 \| Carrying Value \| Notes \| 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	274	274
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	737
Level 2 \| Fair Value \| Interest Rate Swap
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap	1	1
Level 2 \| Fair Value \| Debt of variable interest entities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	7	7
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	328	362
Level 2 \| Fair Value \| Notes \| 5.125% Senior Notes due 2027
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt instrument	249	248
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	546	521
Sinclair Broadcast Group, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt discount and deferred financing costs	$ 36	46
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 \| STG Money Market Funds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Money market funds	$ 253	309
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	7
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	485
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	274
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	737
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	1,175	1,215
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	714	722
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	731	739
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	1
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	7
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	328	362
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	249	248
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	546	521
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	1,160	1,124
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	575	595
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	$ 589	$ 602

Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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