CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Accounts receivable, trade allowance for doubtful accounts	$ (35,389,000)	$ (24,232,000)
Prepaid expenses and other current assets	189,391,000	141,897,000
Property, plant and equipment, accumulated depreciation	9,835,958,000	8,762,014,000
Finite-Lived Intangible Assets, Accumulated Amortization	6,461,571,000	6,190,154,000
Other current liabilities	406,280,000	425,459,000
Total current assets	1,644,796,000	730,992,000
Cash and cash equivalents	1,012,201,000	256,534,000
Restricted cash	107,384,000	290,000
Accounts receivable, trade (less allowance for credit losses of $35,389 and $24,232, respectively)	335,820,000	332,271,000
Property, plant and equipment, net of accumulated depreciation of $9,835,958 and $8,762,014, respectively	8,351,391,000	8,414,632,000
Right-of-use operating lease assets	243,626,000	248,013,000
Other assets	120,341,000	94,403,000
Finite-Lived Intangible Assets, Net	702,467,000	960,805,000
Cable television franchises	11,600,000,000	13,211,308,000
Goodwill	8,041,217,000	8,041,217,000
Total assets	30,703,838,000	31,701,370,000
Long-Term Debt, Current Maturities	60,842,000	185,473,000
Other Liabilities, Noncurrent	316,398,000	320,435,000
Deferred tax liability	4,232,867,000	4,455,840,000
Right-of-use operating lease liability	250,407,000	255,116,000
Long-term debt, net of current maturities	26,145,372,000	24,872,015,000
Accumulated Other Comprehensive Income (Loss), Net of Tax	1,604,000	(3,826,000)
Noncontrolling interests	21,928,000	12,403,000
Accounts Payable, Current	816,860,000	971,499,000
Interest payable	413,709,000	406,208,000
Accrued employee related costs	206,192,000	191,990,000
Deferred revenue	147,139,000	74,167,000
Revenue	8,590,467,000	8,954,417,000
Programming and other direct costs (including charges from affiliates of $6,491, $11,645 and $13,794, respectively) (See Note 16)	2,637,181,000	2,896,570,000
Other Cost and Expense, Operating	2,681,740,000	2,711,828,000
Restructuring, impairments and other operating items	1,687,130,000	23,696,000
Depreciation and amortization	1,696,974,000	1,642,231,000
Costs and Expenses	8,703,025,000	7,274,325,000
Operating Income (Loss)	(112,558,000)	1,680,092,000
Interest expense, net	(1,791,462,000)	(1,763,166,000)
Gain on investments and sale of affiliate interests, net	5,000	670,000
Loss on derivative contracts, net	0	0
Gain on interest rate swap contracts, net	613,000	18,632,000
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(23,502,000)	(12,901,000)
Other income (expense), net	(3,051,000)	(5,675,000)
Total other income (expense)	(1,817,397,000)	(1,762,440,000)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(1,929,955,000)	(82,348,000)
Income tax benefit (expense)	96,908,000	4,071,000
Net income (loss)	(1,833,047,000)	(78,277,000)
Comprehensive income attributable to noncontrolling interests	(35,977,000)	(24,641,000)
Net income (loss) attributable to CSC Holdings, LLC sole member	$ (1,869,024,000)	$ (102,918,000)
Basic income (loss) per share	$ (4.00)	$ (0.22)
Basic weighted average common shares (in thousands)	467,782,000	459,888,000
Diluted income (loss) per share	$ (4.00)	$ (0.22)
Diluted weighted average common shares (in thousands)	467,782,000	459,888,000
Cash dividends declared per common share	$ 0	$ 0
Related Party
Prepaid expenses and other current assets	$ 475,000	$ 314,000
Other current liabilities	27,029,000	26,944,000
Revenue	214,000	459,000
Programming and other direct costs (including charges from affiliates of $6,491, $11,645 and $13,794, respectively) (See Note 16)	6,491,000	11,645,000
Other Cost and Expense, Operating	52,766,000	45,708,000
Customer Relationships [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	5,405,190,000	5,137,180,000
Finite-Lived Intangible Assets, Net	684,184,000	951,870,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	46,381,000	42,974,000
Finite-Lived Intangible Assets, Net	18,283,000	8,935,000
CSC Holdings
Accounts receivable, trade allowance for doubtful accounts	(35,389,000)	(24,232,000)
Prepaid expenses and other current assets	191,909,000	142,694,000
Property, plant and equipment, accumulated depreciation	9,835,958,000	8,762,014,000
Finite-Lived Intangible Assets, Accumulated Amortization	6,461,571,000	6,190,154,000
Other current liabilities	$ 388,298,000	$ 407,540,000
Common Unit, Outstanding	100	100
Total current assets	$ 1,637,032,000	$ 721,581,000
Cash and cash equivalents	1,001,919,000	246,326,000
Restricted cash	107,384,000	290,000
Accounts receivable, trade (less allowance for credit losses of $35,389 and $24,232, respectively)	335,820,000	332,271,000
Property, plant and equipment, net of accumulated depreciation of $9,835,958 and $8,762,014, respectively	8,351,391,000	8,414,632,000
Right-of-use operating lease assets	243,626,000	248,013,000
Other assets	132,205,000	108,855,000
Finite-Lived Intangible Assets, Net	702,467,000	960,805,000
Cable television franchises	11,600,000,000	13,211,308,000
Goodwill	8,041,217,000	8,041,217,000
Total assets	30,707,938,000	31,706,411,000
Long-Term Debt, Current Maturities	60,842,000	185,473,000
Other Liabilities, Noncurrent	268,802,000	255,683,000
Deferred tax liability	4,232,867,000	4,455,840,000
Right-of-use operating lease liability	250,407,000	255,116,000
Long-term debt, net of current maturities	26,145,372,000	24,872,015,000
Member's deficiency (100 membership units issued and outstanding)	(2,328,582,000)	(468,197,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax	1,604,000	(3,826,000)
Noncontrolling interests	21,928,000	12,403,000
Revenue	8,590,467,000	8,954,417,000
Programming and other direct costs (including charges from affiliates of $6,491, $11,645 and $13,794, respectively) (See Note 16)	2,637,181,000	2,896,570,000
Other Cost and Expense, Operating	2,691,793,000	2,713,642,000
Restructuring, impairments and other operating items	1,687,130,000	23,696,000
Depreciation and amortization	1,696,974,000	1,642,231,000
Costs and Expenses	8,713,078,000	7,276,139,000
Operating Income (Loss)	(122,611,000)	1,678,278,000
Interest expense, net	(1,797,008,000)	(1,764,696,000)
Gain on investments and sale of affiliate interests, net	5,000	670,000
Loss on derivative contracts, net	0	0
Gain on interest rate swap contracts, net	613,000	18,632,000
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(23,502,000)	(12,901,000)
Other income (expense), net	(3,051,000)	(5,675,000)
Total other income (expense)	(1,822,943,000)	(1,763,970,000)
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(1,945,554,000)	(85,692,000)
Income tax benefit (expense)	100,175,000	8,272,000
Net income (loss)	(1,845,379,000)	(77,420,000)
Comprehensive income attributable to noncontrolling interests	(35,977,000)	(24,641,000)
Net income (loss) attributable to CSC Holdings, LLC sole member	(1,881,356,000)	(102,061,000)
CSC Holdings | Related Party
Prepaid expenses and other current assets	2,821,000	905,000
Other current liabilities	26,944,000
Note payable to the Captive		90,500,000
Accounts Payable, Current	816,860,000	971,499,000
Interest payable	413,709,000	406,208,000
Accrued employee related costs	206,192,000	191,990,000
Deferred revenue	$ 147,139,000	$ 74,167,000