INCOME TAXES - Federal Tax Rate Reconciliation (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of federal income taxes at the applicable statutory rate to the recorded provision from continuing operations
Federal statutory rate	21.00%	21.00%	21.00%
Adjustments:
State income taxes, net of federal tax benefit (as a percent)	4.60%	2.00%	(4.20%)
Valuation allowance (as a percent)	30.60%	1.60%	(1.50%)
Noncontrolling interest (as a percent)	0.40%	0.20%	2.60%
Federal tax credits (as a percent)	0.60%	(0.20%)	10.60%
Net operating loss carryback (as a percent)	0.00%	0.00%	7.50%
Other	(0.90%)	0.70%	(1.30%)
Effective income tax rate	56.30%	25.30%	34.70%
Increase (decrease) in valuation allowance	$ (212)	$ 56	$ 8
Noncontrolling interest, expense (benefit)	$ (3)	$ 9	(13)
Investment tax credits			40
CARES Act benefit			$ 38
Sinclair Broadcast Group, LLC
Reconciliation of federal income taxes at the applicable statutory rate to the recorded provision from continuing operations
Federal statutory rate	21.00%	21.00%	21.00%
Adjustments:
State income taxes, net of federal tax benefit (as a percent)	4.70%	2.00%	(4.20%)
Valuation allowance (as a percent)	33.50%	1.60%	(1.50%)
Noncontrolling interest (as a percent)	0.50%	0.20%	2.60%
Federal tax credits (as a percent)	0.60%	(0.20%)	10.60%
Net operating loss carryback (as a percent)	0.00%	0.00%	7.50%
Other	(0.90%)	0.70%	(1.30%)
Effective income tax rate	59.40%	25.30%	34.70%
Increase (decrease) in valuation allowance	$ (212)	$ 56	$ 8
Noncontrolling interest, expense (benefit)	$ (3)	$ 9	(13)
Investment tax credits			40
CARES Act benefit			$ 38

Effective Income Tax Rate Reconciliation, CARES Act, Amount

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Effective Income Tax Rate Reconciliation, Net Operating Loss Carryback, Percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to noncontrolling interest income (loss) exempt from income taxes.

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