NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Acquisitions and Station Disposals (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2025	Sep. 30, 2025	Jul. 31, 2025
WLNE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset purchase agreement consideration	$ 32	$ 32	$ 32
Definite-lived intangible assets	27
Property and equipment	1	1	1
Net working capital	4	4	4
Disposed of by sale | Station Disposals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration	36	36	36	$ 36
Loss from disposal			8
Sinclair Broadcast Group, LLC | WLNE
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Asset purchase agreement consideration	32	32	32
Definite-lived intangible assets	27
Property and equipment	1	1	1
Net working capital	4	4	4
Sinclair Broadcast Group, LLC | Disposed of by sale | Station Disposals
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Consideration	$ 36	$ 36	36	$ 36
Loss from disposal			$ 8