DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Jan. 24, 2023
Derivative [Line Items]
Loss on derivative contracts, net	$ 0	$ 0	$ (166,489)
Gain (loss) on investments and sale of affiliate interests, net	5	670	180,237
Gain on interest rate swap contracts, net	613	18,632	32,664
Long-term debt	26,206,214	25,057,488
Proceeds from Issuance of Secured Debt	0	0	38,902
Principal Amount	26,407,393	25,096,412
Investment Income, Dividend			11,598
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(23,502)	(12,901)	4,393
CSC Holdings
Derivative [Line Items]
Loss on derivative contracts, net	0	0	(166,489)
Gain (loss) on investments and sale of affiliate interests, net	5	670	180,237
Gain on interest rate swap contracts, net	613	18,632	32,664
Proceeds from Issuance of Secured Debt	0	0	38,902
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(23,502)	(12,901)	4,393
Notes related to derivative contracts
Derivative [Line Items]
Loss on derivative contracts, net	$ 0	0	(166,489)
Collateralized Debt Obligations [Member]
Derivative [Line Items]
Receipt of cash from settlement of collateralized debt				$ 50,500
Gain (loss) on extinguishment of debt and write-off of deferred financing costs			$ 4,393
Interest Rate Swap | CSC Holdings
Derivative [Line Items]
Gain on interest rate swap contracts, net		$ 52,943