INCOME TAXES - Deferred Tax Assets (Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
NOLs, capital loss, and tax credit carry forwards (a)	$ 130,134	$ 117,995
Compensation and benefit plans	90,853	97,115
Restructuring liability	7,220	2,079
Other liabilities	50,440	48,433
Deferred Tax Assets, in Process Research and Development	33,427	22,292
Deferred Tax Liabilities, Derivatives	(40,357)
Derivative contracts		315,861
Interest deferred for tax purposes	536,284	272,842
Operating lease liability	79,263	71,232
Deferred tax assets	887,264	947,849
Less: Valuation allowance	(87,407)	(73,560)
Net deferred tax assets, noncurrent	799,857	874,289
Fixed assets and intangibles	(5,250,112)	(5,185,319)
Operating lease asset	(64,163)	(58,360)
Deferred Tax Assets, Investments	1,519
Investments		(393,700)
Deferred Tax Assets, Investment in Subsidiaries	(173,198)	(155,434)
Prepaid expenses	(14,630)	(11,477)
Fair value adjustments related to debt and deferred financing costs	(1,751)	(5,698)
Opportunity Zone tax deferral	(145,655)	(145,608)
Deferred tax liability, noncurrent	(5,647,990)	(5,955,596)
Total net deferred tax liabilities	(4,848,133)	(5,081,307)
CSC Holdings
NOLs, capital loss, and tax credit carry forwards (a)	104,071	86,547
Compensation and benefit plans	90,853	97,115
Restructuring liability	7,220	2,079
Other liabilities	50,440	48,433
Deferred Tax Assets, in Process Research and Development	33,427	22,292
Deferred Tax Liabilities, Derivatives	(40,357)
Derivative contracts		315,861
Interest deferred for tax purposes	536,284	272,842
Operating lease liability	79,263	71,232
Deferred tax assets	861,201	916,401
Less: Valuation allowance	(64,844)	(50,745)
Net deferred tax assets, noncurrent	796,357	865,656
Fixed assets and intangibles	(5,250,112)	(5,185,319)
Operating lease asset	(64,163)	(58,360)
Deferred Tax Assets, Investments	1,519
Investments		(393,700)
Deferred Tax Assets, Investment in Subsidiaries	(173,198)	(155,434)
Prepaid expenses	(14,630)	(11,477)
Fair value adjustments related to debt and deferred financing costs	(1,751)	(5,698)
Opportunity Zone tax deferral	(145,655)	(145,608)
Deferred tax liability, noncurrent	(5,647,990)	(5,955,596)
Total net deferred tax liabilities	$ (4,851,633)	$ (5,089,940)