INCOME TAXES - Schedule of Provision (Benefit) for Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Current (benefit) provision for income taxes:
Federal	$ (10)	$ 5	$ 6
State	4	(5)	3
Current income tax expense (benefit)	(6)	0	9
Deferred provision (benefit) for income taxes:
Federal	86	(342)	868
State	(4)	(16)	36
Deferred income tax expense (benefit)	82	(358)	904
Provision (benefit) for income taxes	76	(358)	913
Sinclair Broadcast Group, LLC
Current (benefit) provision for income taxes:
Federal	(35)	5	6
State	4	(5)	3
Current income tax expense (benefit)	(31)	0	9
Deferred provision (benefit) for income taxes:
Federal	95	(331)	868
State	(4)	(28)	36
Deferred income tax expense (benefit)	91	(359)	904
Provision (benefit) for income taxes	$ 60	$ (359)	$ 913