Altice USA (ATUS) 10-K14 Feb 242023 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
Document and Entity Information - USD ($)	Dec. 31, 2023	Feb. 09, 2024	Jun. 30, 2023
Document and Entity Information [Abstract]
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Entity Interactive Data Current	Yes
Entity File Number	001-38126
Document Transition Report	false
Document Quarterly Report	true
Document Type	10-K
Entity Central Index Key	0001702780
Entity Registrant Name	Altice USA, Inc.
Document Fiscal Year Focus	2023
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Document Period End Date	Dec. 31, 2023
Entity Common Stock, Shares Outstanding		456,117,351
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	Yes
Entity Public Float			$ 656,665,390
Documents Incorporated by Reference	Altice USA, Inc. intends to file with the Securities and Exchange Commission, not later than 120 days after the close of its fiscal year, a definitive proxy statement or an amendment to this report filed under cover of Form 10-K/A containing the information required to be disclosed under Part III of Form 10-K.
Entity Small Business	false
Current Fiscal Year End Date	--12-31
Entity Tax Identification Number	38-3980194
Entity Incorporation, State or Country Code	DE
Entity Address, Address Line One	1 Court Square West
Entity Address, City or Town	Long Island City,
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	11101
City Area Code	(516)
Local Phone Number	803-2300
Trading Symbol	ATUS
Security Exchange Name	NYSE
ICFR Auditor Attestation Flag	true
Auditor Name	KPMG LLP
Auditor Location	New York, New York
Auditor Firm ID	185
Document Financial Statement Error Correction [Flag]	false

Audit Information

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2023
Audit Information [Abstract]
Auditor Name	KPMG LLP
Auditor Firm ID	185
Auditor Location	New York, New York

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 302,058	$ 305,484
Restricted cash	280	267
Accounts receivable, trade (less allowance for doubtful accounts of $21,915 and $20,767, respectively)	357,597	365,992
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	174,859	130,684
Derivative contracts	0	263,873
Investment securities pledged as collateral	0	1,502,145
Total current assets	834,794	2,568,445
Property, plant and equipment, net of accumulated depreciation of $8,162,442 and $7,785,397, respectively	8,117,757	7,500,780
Right-of-use operating lease assets	255,545	250,601
Other assets	195,114	259,681
Amortizable intangibles, net of accumulated amortization of $5,874,612 and $5,549,674, respectively	1,259,335	1,660,331
Indefinite-lived cable franchise rights	13,216,355	13,216,355
Goodwill	8,044,716	8,208,773
Total assets	31,923,616	33,664,966
Liabilities, Current [Abstract]
Accounts payable	936,950	1,213,806
Interest payable	274,507	252,351
Accrued employee related costs	182,146	139,328
Contract with Customer, Liability, Current	85,018	80,559
Long-Term Debt, Current Maturities	359,407	2,075,077
Other Accrued Liabilities, Current	470,096	278,580
Liabilities, Current, Total	2,308,124	4,039,701
Other liabilities	221,249	274,623
Deferred tax liability	4,848,460	5,081,661
Right-of-use operating lease liability	264,647	260,237
Long-term debt, net of current maturities	24,715,554	24,512,656
Liabilities, Total	32,358,034	34,168,878
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock, $0.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Paid-in capital	187,186	182,701
Retained Earnings (Accumulated Deficit)	(601,075)	(654,273)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	(409,329)	(467,010)
Treasury stock, at cost (18,921 Class A common shares at December 31, 2022)	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax	(12,851)	(8,201)
Total Altice USA stockholders' deficiency	(422,180)	(475,211)
Noncontrolling interests	(12,238)	(28,701)
Total stockholders' deficiency	(434,418)	(503,912)
Total liabilities and member's deficiency	31,923,616	33,664,966
Related Party
Current Assets:
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	407	572
Liabilities, Current [Abstract]
Other Accrued Liabilities, Current	71,523	20,857
Common Class A
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common Stock, Value, Issued	2,718	2,719
Common Class B
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common Stock, Value, Issued	1,842	1,843
Common Class C
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common Stock, Value, Issued	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2023
Assets [Abstract]
Accounts receivable, trade allowance for doubtful accounts	$ 20,767	$ 21,915
Prepaid Expense and Other Assets, Current	130,684	174,859
Property, plant and equipment, accumulated depreciation	7,785,397	8,162,442
Amortizable intangible assets, accumulated amortization	5,549,674	5,874,612
LIABILITIES AND MEMBER'S DEFICIENCY
Other Accrued Liabilities, Current	$ 278,580	$ 470,096
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	100,000,000	100,000,000
Preferred stock, shares outstanding (in shares)	0	0
Treasury Stock, Shares, Acquired	18,921
Related Party
Assets [Abstract]
Prepaid Expense and Other Assets, Current	$ 572	$ 407
LIABILITIES AND MEMBER'S DEFICIENCY
Other Accrued Liabilities, Current	20,857	71,523
CSC Holdings
Assets [Abstract]
Accounts receivable, trade allowance for doubtful accounts	20,767	21,915
Prepaid Expense and Other Assets, Current	130,684	174,859
Property, plant and equipment, accumulated depreciation	7,785,397	8,162,442
LIABILITIES AND MEMBER'S DEFICIENCY
Other Accrued Liabilities, Current	278,580	470,097
CSC Holdings \| Related Party
Assets [Abstract]
Prepaid Expense and Other Assets, Current	572	407
LIABILITIES AND MEMBER'S DEFICIENCY
Other Accrued Liabilities, Current	$ 20,857	$ 71,523
Common Class A
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, par value (in dollars per share)		$ 0.01
Common stock, shares authorized (in shares)		4,000,000,000
Common stock, shares issued (in shares)	271,851,984	271,772,978
Common stock, shares outstanding (in shares)	271,833,063	271,772,978
Common Class B
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, par value (in dollars per share)		$ 0.01
Common stock, shares authorized (in shares)		1,000,000,000
Common stock, shares issued (in shares)		490,086,674
Common stock, shares outstanding (in shares)	184,329,229	184,224,428
Common Class C
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Common stock, par value (in dollars per share)		$ 0.01
Common stock, shares authorized (in shares)		4,000,000,000
Common stock, shares outstanding (in shares)		0

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement [Abstract]
Revenue (including revenue from affiliates of $1,471, $2,368 and $13,238, respectively) (See Note 16)	$ 9,237,064	$ 9,647,659	$ 10,090,849
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $13,794, $14,321 and $17,167, respectively) (See Note 16)	3,029,842	3,205,638	3,382,129
Other operating expenses (including charges from affiliates of $57,063, $12,210 and $11,989, respectively) (See Note 16)	2,646,258	2,735,469	2,379,765
Restructuring, impairments and other operating items	214,727	130,285	17,176
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Total operating expenses	7,535,124	7,845,065	7,566,222
Operating Income (Loss), Total	1,701,940	1,802,594	2,524,627
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,639,120)	(1,331,636)	(1,266,591)
Gain (loss) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain (loss) on derivative contracts, net	(166,489)	425,815	85,911
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
Other income, net	4,940	8,535	9,835
Total other income (expense)	(1,583,375)	(1,285,865)	(1,218,720)
Income before income taxes	118,565	516,729	1,305,907
Income tax expense	(39,528)	(295,840)	(294,975)
Net income	79,037	220,889	1,010,932
Net income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Net income attributable to Altice USA stockholders	$ 53,198	$ 194,563	$ 990,311
Earnings Per Share [Abstract]
Basic income per share	$ 0.12	$ 0.43	$ 2.16
Basic weighted average common shares (in thousands)	454,723	453,244	458,311
Diluted income per share	$ 0.12	$ 0.43	$ 2.14
Diluted weighted average common shares (in thousands)	455,034	453,282	462,295
Cash dividends declared per common share	$ 0	$ 0	$ 0

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 79,037	$ 220,889	$ 1,010,932
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax [Abstract]
Defined benefit pension plans	(5,424)	(20,526)	4,772
Applicable income taxes	1,463	5,537	(1,259)
Defined benefit pension plans, net of income taxes	(3,961)	(14,989)	3,513
Foreign currency translation adjustment	(689)	291	(662)
Other comprehensive income (loss)	(4,650)	(14,698)	2,851
Comprehensive income	74,387	206,191	1,013,783
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Comprehensive income attributable to Altice USA, Inc. stockholders	$ 48,548	$ 179,865	$ 993,162

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Parent [Member]	Parent [Member] CSC Holdings	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	AOCI Attributable to Parent [Member] CSC Holdings	Noncontrolling Interests	Noncontrolling Interests CSC Holdings	Additional Paid-in Capital [Member]	Additional Paid-in Capital [Member] CSC Holdings	Treasury Stock, Common	Common Class A Common Stock	Common Class B Common Stock
Beginning balance at Dec. 31, 2020	$ (1,203,139)		$ (1,141,030)		$ (985,641)	$ 3,646		$ (62,109)		$ 0		$ (163,866)	$ 2,972	$ 1,859
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA stockholders	990,311	$ 988,176	990,311	$ 988,176	990,311
Net income attributable to noncontrolling interests	20,621	20,621						20,621	$ 20,621
Distributions to noncontrolling interests	(14,004)	(14,004)						(14,004)	(14,004)
Pension liability adjustments, net of income taxes	(3,513)	(3,513)	(3,513)	(3,513)		(3,513)	$ (3,513)
Foreign currency translation adjustment	(662)	(662)	(662)	(662)		(662)	(662)
Share-based compensation expense (equity classified)	97,511	97,511	97,511	97,511	79,521					17,990	$ 97,511
Redeemable equity vested	23,749	23,749	23,749	23,749	23,749					0	23,749
Change in redeemable equity	2,014		2,014		2,014					0
Class A shares acquired through share repurchase program and retired	(804,928)		(804,928)		(804,692)					0			(236)
Conversion of Class B to Class A shares													16	(16)
Retirement of treasury stock and issuance of common shares pursuant to employee LTIP	13,900		13,900		(149,932)					15		163,866	(49)
Adjustments to Additional Paid in Capital, Other		(212)		4,166					(4,378)		4,166
Ending balance at Dec. 31, 2021	(870,902)		(819,788)		(848,836)	6,497		(51,114)		18,005		0	2,703	1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA stockholders	194,563	198,251	194,563	198,251
Net income attributable to noncontrolling interests	26,326	26,326						26,326	26,326
Distributions to noncontrolling interests	(3,913)	(3,913)						(3,913)	(3,913)
Pension liability adjustments, net of income taxes	14,989	14,989	14,989	14,989		14,989	14,989
Foreign currency translation adjustment	291	291	291	291		291	291
Share-based compensation expense (equity classified)	167,410	167,410	167,410	167,410						167,410	167,410
Issuance of common shares pursuant to employee long term incentive plan	(79)		(79)							(63)			(16)
Adjustments to retained earnings	212				(4,166)			4,378					(4,166)
Adjustments to Additional Paid in Capital, Other	(2,777)				(2,777)								(2,777)
Ending balance at Dec. 31, 2022	(503,912)	(512,552)	(475,211)		(654,273)	(8,201)		(28,701)		182,701		0	2,719	1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to Altice USA stockholders	53,198	50,149	53,198
Net income attributable to noncontrolling interests	25,839	25,839						25,839	25,839
Distributions to noncontrolling interests	(1,077)	(1,077)						(1,077)	(1,077)
Pension liability adjustments, net of income taxes	3,961	3,961	3,961	3,961		3,961	3,961
Foreign currency translation adjustment	(697)	(697)	(689)	(689)		(689)	$ (689)	8	8
Share-based compensation expense (equity classified)	19,090	19,090	19,090	19,090						19,090	19,090
Change in redeemable equity	21,106	(21,106)	12,815	$ 12,815				(8,291)	$ (8,291)	12,815	$ 12,815
Class A shares acquired through share repurchase program and retired	(7,808,698)
Adjustments to Additional Paid in Capital, Other	(1,792)		(1,792)							(1,790)			(1)	(1)
Ending balance at Dec. 31, 2023	$ (434,418)	$ (437,925)	$ (422,180)		$ (601,075)	$ (12,851)		$ (12,238)		$ 187,186		$ 0	$ 2,718	$ 1,842

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net income	$ 79,037	$ 220,889	$ 1,010,932
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Loss (gain) on investments and sale of affiliate interests, net	(180,237)	659,792	88,898
Loss (gain) on derivative contracts, net	166,489	(425,815)	(85,911)
Gain (Loss) on Extinguishment of Debt	(4,393)	575	51,712
Amortization of deferred financing costs and discounts (premiums) on indebtedness	34,440	77,356	91,226
Share-based compensation expense	47,926	159,985	98,296
Deferred income taxes	(226,915)	36,385	40,701
Decrease in right-of-use assets	46,108	44,342	43,820
Provision for doubtful accounts	84,461	88,159	68,809
Goodwill impairment (b)	163,055	0	0
Other Operating Activities, Cash Flow Statement	11,169	3,460	4,928
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable, trade	(77,703)	(45,279)	(30,379)
Prepaid expenses and other assets	(54,782)	50,419	28,343
Amounts due from and due to affiliates	50,831	(7,749)	23,758
Accounts payable and accrued liabilities	(39,256)	46,724	(177,326)
Deferred revenue	9,164	(14,953)	(40,929)
Interest rate swap contracts	72,707	(301,062)	(149,952)
Net Cash Provided by (Used in) Operating Activities, Total	1,826,398	2,366,901	2,854,078
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures	(1,704,811)	(1,914,282)	(1,231,715)
Payments for acquisitions, net of cash acquired	0	(2,060)	(340,444)
Payments for (Proceeds from) Other Investing Activities	(1,712)	(5,168)	(1,444)
Net Cash Provided by (Used in) Investing Activities, Total	(1,706,523)	(1,921,510)	(1,573,603)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from long-term debt	2,700,000	4,276,903	4,410,000
Repayments of Debt	(2,688,009)	(4,469,727)	(4,870,108)
Proceeds from collateralized indebtedness and related derivative contracts, net	38,902	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	0	(185,105)
Principal payments on finance lease obligations	(149,297)	(134,682)	(85,949)
Purchase of shares of Altice USA, Inc. Class A common stock, pursuant to a share repurchase program	0	0	(804,928)
Payments to acquire noncontrolling interest	(14,070)	0	0
Other, net	(10,117)	(8,400)	(11,539)
Net cash used in financing activities	(122,591)	(335,906)	(1,362,524)
Net increase (decrease) in cash and cash equivalents	(2,716)	109,485	(82,049)
Effect of exchange rate changes on cash and cash equivalents	(697)	291	(662)
Net increase (decrease) in cash and cash equivalents	(3,413)	109,776	(82,711)
Cash, cash equivalents and restricted cash at beginning of year	305,751	195,975	278,686
Cash, cash equivalents and restricted cash at end of year	$ 302,338	$ 305,751	$ 195,975

CSC HOLDINGS - CONSOLIDATED BAL

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current Assets:
Cash and cash equivalents	$ 302,058	$ 305,484
Restricted cash	280	267
Accounts receivable, trade (less allowance for doubtful accounts of $21,915 and $20,767, respectively)	357,597	365,992
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	174,859	130,684
Derivative contracts	0	263,873
Investment securities pledged as collateral	0	1,502,145
Total current assets	834,794	2,568,445
Property, plant and equipment, net of accumulated depreciation of $8,162,442 and $7,785,397, respectively	8,117,757	7,500,780
Right-of-use operating lease assets	255,545	250,601
Other assets	195,114	259,681
Finite-Lived Intangible Assets, Net	1,259,335	1,660,331
Indefinite-lived cable franchise rights	13,216,355	13,216,355
Goodwill	8,044,716	8,208,773
Total assets	31,923,616	33,664,966
Liabilities, Current [Abstract]
Accounts payable	936,950	1,213,806
Interest payable	274,507	252,351
Accrued employee related costs	182,146	139,328
Deferred revenue	85,018	80,559
Long-Term Debt, Current Maturities	359,407	2,075,077
Other Accrued Liabilities, Current	470,096	278,580
Liabilities, Current, Total	2,308,124	4,039,701
Other liabilities	221,249	274,623
Deferred tax liability	4,848,460	5,081,661
Right-of-use operating lease liability	264,647	260,237
Long-term debt, net of current maturities	24,715,554	24,512,656
Liabilities, Total	32,358,034	34,168,878
Limited Liability Company (LLC) Members' Equity [Abstract]
Accumulated other comprehensive income	(12,851)	(8,201)
Noncontrolling interests	(12,238)	(28,701)
Total stockholders' deficiency	(434,418)	(503,912)
Total liabilities and member's deficiency	31,923,616	33,664,966
Related Party
Current Assets:
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	407	572
Liabilities, Current [Abstract]
Other Accrued Liabilities, Current	71,523	20,857
CSC Holdings
Current Assets:
Cash and cash equivalents	302,051	305,477
Restricted cash	280	267
Accounts receivable, trade (less allowance for doubtful accounts of $21,915 and $20,767, respectively)	357,597	365,992
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	174,859	130,684
Derivative contracts	0	263,873
Investment securities pledged as collateral	0	1,502,145
Total current assets	834,787	2,568,438
Property, plant and equipment, net of accumulated depreciation of $8,162,442 and $7,785,397, respectively	8,117,757	7,500,780
Right-of-use operating lease assets	255,545	250,601
Other assets	195,114	259,681
Finite-Lived Intangible Assets, Net	1,259,335	1,660,331
Indefinite-lived cable franchise rights	13,216,355	13,216,355
Goodwill	8,044,716	8,208,773
Total assets	31,923,609	33,664,959
Liabilities, Current [Abstract]
Accounts payable	936,950	1,213,806
Interest payable	274,507	252,351
Accrued employee related costs	182,146	139,328
Deferred revenue	85,018	80,559
Long-Term Debt, Current Maturities	359,407	2,075,077
Other Accrued Liabilities, Current	470,097	278,580
Liabilities, Current, Total	2,308,125	4,039,701
Other liabilities	221,249	274,623
Deferred tax liability	4,851,959	5,090,294
Right-of-use operating lease liability	264,647	260,237
Long-term debt, net of current maturities	24,715,554	24,512,656
Liabilities, Total	32,361,534	34,177,511
Limited Liability Company (LLC) Members' Equity [Abstract]
Member's deficiency (100 membership units issued and outstanding)	(412,836)	(475,650)
Accumulated other comprehensive income	(12,851)	(8,201)
Total member's deficiency	(425,687)	(483,851)
Noncontrolling interests	(12,238)	(28,701)
Total stockholders' deficiency	(437,925)	(512,552)
Total liabilities and member's deficiency	31,923,609	33,664,959
CSC Holdings \| Related Party
Current Assets:
Prepaid expenses and other current assets ($407 and $572 due from affiliates, respectively)	407	572
Liabilities, Current [Abstract]
Other Accrued Liabilities, Current	$ 71,523	$ 20,857

CSC HOLDINGS - CONSOLIDATED B_2

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounts receivable, trade allowance for doubtful accounts	$ (21,915)	$ (20,767)
Prepaid Expense and Other Assets, Current	174,859	130,684
Property, plant and equipment, accumulated depreciation	8,162,442	7,785,397
Finite-Lived Intangible Assets, Accumulated Amortization	5,874,612	5,549,674
Other Accrued Liabilities, Current	470,096	278,580
Related Party
Prepaid Expense and Other Assets, Current	407	572
Other Accrued Liabilities, Current	71,523	20,857
Customer Relationships [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	4,824,140	4,484,286
Other Intangible Assets [Member]
Finite-Lived Intangible Assets, Accumulated Amortization	40,172	47,176
CSC Holdings
Accounts receivable, trade allowance for doubtful accounts	(21,915)	(20,767)
Prepaid Expense and Other Assets, Current	174,859	130,684
Property, plant and equipment, accumulated depreciation	8,162,442	7,785,397
Other Accrued Liabilities, Current	$ 470,097	$ 278,580
Common Unit, Outstanding	100	100
CSC Holdings \| Related Party
Prepaid Expense and Other Assets, Current	$ 407	$ 572
Other Accrued Liabilities, Current	$ 71,523	$ 20,857

CSC HOLDINGS - CONSOLIDATED STA

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenue (including revenue from affiliates of $1,471, $2,368 and $13,238, respectively) (See Note 16)	$ 9,237,064	$ 9,647,659	$ 10,090,849
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $13,794, $14,321 and $17,167, respectively) (See Note 16)	3,029,842	3,205,638	3,382,129
Other operating expenses (including charges from affiliates of $57,063, $12,210 and $11,989 respectively) (See Note 16)	2,646,258	2,735,469	2,379,765
Restructuring, impairments and other operating items	214,727	130,285	17,176
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Total operating expenses	7,535,124	7,845,065	7,566,222
Operating Income (Loss), Total	1,701,940	1,802,594	2,524,627
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,639,120)	(1,331,636)	(1,266,591)
Loss (gain) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain (loss) on derivative contracts, net	(166,489)	425,815	85,911
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
Other income, net	4,940	8,535	9,835
Total other income (expense)	(1,583,375)	(1,285,865)	(1,218,720)
Income before income taxes	118,565	516,729	1,305,907
Income Tax Expense (Benefit)	(39,528)	(295,840)	(294,975)
Net income	79,037	220,889	1,010,932
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Net income attributable to CSC Holdings, LLC sole member	53,198	194,563	990,311
Related Party
Revenue (including revenue from affiliates of $1,471, $2,368 and $13,238, respectively) (See Note 16)	1,471	2,368	13,238
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $13,794, $14,321 and $17,167, respectively) (See Note 16)	13,794	14,321	17,167
Other operating expenses (including charges from affiliates of $57,063, $12,210 and $11,989 respectively) (See Note 16)	57,063	12,210	11,989
CSC Holdings
Revenue (including revenue from affiliates of $1,471, $2,368 and $13,238, respectively) (See Note 16)	9,237,064	9,647,659	10,090,849
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $13,794, $14,321 and $17,167, respectively) (See Note 16)	3,029,842	3,205,638	3,382,129
Other operating expenses (including charges from affiliates of $57,063, $12,210 and $11,989 respectively) (See Note 16)	2,646,258	2,735,469	2,379,765
Restructuring, impairments and other operating items	214,727	130,285	17,176
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Total operating expenses	7,535,124	7,845,065	7,566,222
Operating Income (Loss), Total	1,701,940	1,802,594	2,524,627
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,639,120)	(1,331,636)	(1,266,591)
Loss (gain) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain (loss) on derivative contracts, net	(166,489)	425,815	85,911
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
Other income, net	4,940	8,535	9,835
Total other income (expense)	(1,583,375)	(1,285,865)	(1,218,720)
Income before income taxes	118,565	516,729	1,305,907
Income Tax Expense (Benefit)	(42,577)	(292,152)	(297,110)
Net income	75,988	224,577	1,008,797
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Net income attributable to CSC Holdings, LLC sole member	$ 50,149	$ 198,251	$ 988,176

CSC HOLDINGS - CONDENSED CONSOL

CSC HOLDINGS - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 79,037	$ 220,889	$ 1,010,932
Defined benefit pension and postretirement plans:
Defined benefit pension plans	(5,424)	(20,526)	4,772
Applicable income taxes	1,463	5,537	(1,259)
Defined benefit pension plans, net of income taxes	(3,961)	(14,989)	3,513
Other comprehensive income (loss)	(4,650)	(14,698)	2,851
Comprehensive income	74,387	206,191	1,013,783
Comprehensive income attributable to CSC Holdings, LLC's sole member	48,548	179,865	993,162
Foreign currency translation adjustment	(689)	291	(662)
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
CSC Holdings
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	75,988	224,577	1,008,797
Defined benefit pension and postretirement plans:
Defined benefit pension plans	(5,424)	(20,526)	4,772
Applicable income taxes	1,463	5,537	(1,259)
Defined benefit pension plans, net of income taxes	(3,961)	(14,989)	3,513
Other comprehensive income (loss)	(4,650)	(14,698)	2,851
Comprehensive income	71,338	209,879	1,011,648
Comprehensive income attributable to CSC Holdings, LLC's sole member	45,499	183,553	991,027
Foreign currency translation adjustment	(689)	291	(662)
Comprehensive income attributable to noncontrolling interests	$ (25,839)	$ (26,326)	$ (20,621)

CSC HOLDINGS - CONSOLIDATED S_2

CSC HOLDINGS - CONSOLIDATED STATEMENT OF MEMBER'S EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Retained Earnings	Member's Equity (Deficiency)	Member's Equity (Deficiency) CSC Holdings	Accumulated Other Comprehensive Income (Loss)	Accumulated Other Comprehensive Income (Loss) CSC Holdings	Parent [Member]	Parent [Member] CSC Holdings	Noncontrolling Interests	Noncontrolling Interests CSC Holdings
Members' Equity					$ (1,172,505)
Accumulated Other Comprehensive Income (Loss), Net of Tax							$ 3,646
Membership equity before noncontrolling interest									$ (1,168,859)
Noncontrolling interests											$ (62,109)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		$ (1,230,968)
Net income attributable to CSC Holdings' sole member	$ (990,311)	(988,176)	$ (990,311)					$ (990,311)	(988,176)
Net income attributable to noncontrolling interests	20,621	20,621								$ 20,621	20,621
Distributions to noncontrolling interests	14,004	14,004								14,004	14,004
Pension liability adjustments, net of income taxes	(3,513)	(3,513)				$ (3,513)	(3,513)	(3,513)	(3,513)
Foreign currency translation adjustment	662	662				662	662	662	662
Share-based compensation expense (equity classified)	97,511	97,511	79,521	$ 17,990	97,511			97,511	97,511
Redeemable equity vested	23,749	23,749	23,749	0	23,749			23,749	23,749
Change in redeemable equity		(2,014)			(2,014)				(2,014)
Contributions from (distributions to) parent, net	(19,500)
Cash distributions to parent		763,435							763,435
Non-cash distributions to parent		19,500			19,500				19,500
Change in noncontrolling interest	(2,014)		(2,014)	0				(2,014)
Adjustments to Additional Paid in Capital, Other		212			(4,166)				(4,166)		4,378
Members' Equity					(848,156)
Accumulated Other Comprehensive Income (Loss), Net of Tax							6,497
Membership equity before noncontrolling interest									(841,659)
Noncontrolling interests											(51,114)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		(892,773)
Net income attributable to CSC Holdings' sole member	(194,563)	(198,251)						(194,563)	(198,251)
Net income attributable to noncontrolling interests	26,326	26,326								26,326	26,326
Distributions to noncontrolling interests	3,913	3,913								3,913	3,913
Pension liability adjustments, net of income taxes	14,989	14,989				14,989	14,989	14,989	14,989
Foreign currency translation adjustment	(291)	(291)				(291)	(291)	(291)	(291)
Share-based compensation expense (equity classified)	167,410	167,410		167,410	167,410			167,410	167,410
Contributions from (distributions to) parent, net	7,015
Cash distributions to parent		170							170
Non-cash distributions to parent		(7,015)			(7,015)				(7,015)
Adjustments to Additional Paid in Capital, Other	2,777		$ 2,777
Members' Equity					(475,650)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(8,201)	(8,201)					(8,201)
Membership equity before noncontrolling interest		(483,851)							(483,851)
Noncontrolling interests	(28,701)	(28,701)									(28,701)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		(512,552)
Net income attributable to CSC Holdings' sole member	(53,198)	(50,149)						(53,198)
Net income attributable to noncontrolling interests	25,839	25,839								25,839	25,839
Distributions to noncontrolling interests	1,077	1,077								1,077	1,077
Pension liability adjustments, net of income taxes	3,961	3,961				3,961	3,961	3,961	3,961
Foreign currency translation adjustment	697	697				$ 689	689	689	689	(8)	(8)
Share-based compensation expense (equity classified)	19,090	19,090		19,090	19,090			19,090	19,090
Contributions from (distributions to) parent, net	8,183
Cash distributions to parent		1,793							1,793
Non-cash distributions to parent		(8,183)			(8,183)				(8,183)
Change in noncontrolling interest	(21,106)	21,106		(12,815)	(12,815)			(12,815)	(12,815)	$ 8,291	8,291
Adjustments to Additional Paid in Capital, Other	1,792			$ 1,790				$ 1,792
Members' Equity					$ (412,836)
Accumulated Other Comprehensive Income (Loss), Net of Tax	(12,851)	(12,851)					$ (12,851)
Membership equity before noncontrolling interest		(425,687)							$ (425,687)
Noncontrolling interests	$ (12,238)	(12,238)									$ (12,238)
Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest		$ (437,925)

CSC HOLDINGS - CONSOLIDATED S_3

CSC HOLDINGS - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ 79,037	$ 220,889	$ 1,010,932
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Loss (gain) on investments and sale of affiliate interests, net	(180,237)	659,792	88,898
Loss (gain) on derivative contracts, net	166,489	(425,815)	(85,911)
Gain (Loss) on Extinguishment of Debt	(4,393)	575	51,712
Amortization of deferred financing costs and discounts (premiums) on indebtedness	34,440	77,356	91,226
Share-based compensation expense	47,926	159,985	98,296
Deferred income taxes	(226,915)	36,385	40,701
Decrease in right-of-use assets	46,108	44,342	43,820
Provision for doubtful accounts	84,461	88,159	68,809
Goodwill impairment (b)	163,055	0	0
Other Operating Activities, Cash Flow Statement	11,169	3,460	4,928
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable, trade	(77,703)	(45,279)	(30,379)
Prepaid expenses and other assets	(54,782)	50,419	28,343
Amounts due from and due to affiliates	50,831	(7,749)	23,758
Accounts payable and accrued liabilities	(39,256)	46,724	(177,326)
Deferred revenue	9,164	(14,953)	(40,929)
Interest rate swap contracts	72,707	(301,062)	(149,952)
Net Cash Provided by (Used in) Operating Activities, Total	1,826,398	2,366,901	2,854,078
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures	(1,704,811)	(1,914,282)	(1,231,715)
Payments for acquisitions, net of cash acquired	0	(2,060)	(340,444)
Payments for (Proceeds from) Other Investing Activities	(1,712)	(5,168)	(1,444)
Net Cash Provided by (Used in) Investing Activities, Total	(1,706,523)	(1,921,510)	(1,573,603)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from long-term debt	2,700,000	4,276,903	4,410,000
Repayments of Debt	(2,688,009)	(4,469,727)	(4,870,108)
Proceeds from collateralized indebtedness and related derivative contracts, net	38,902	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	0	(185,105)
Payments to acquire noncontrolling interest	(14,070)	0	0
Principal payments on finance lease obligations	(149,297)	(134,682)	(85,949)
Other, net	(10,117)	(8,400)	(11,539)
Net cash used in financing activities	(122,591)	(335,906)	(1,362,524)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect, Total	(2,716)	109,485	(82,049)
Effect of exchange rate changes on cash and cash equivalents	(697)	291	(662)
Net increase (decrease) in cash and cash equivalents	(3,413)	109,776	(82,711)
Cash, cash equivalents and restricted cash at beginning of year	305,751	195,975	278,686
Cash, cash equivalents and restricted cash at end of year	302,338	305,751	195,975
CSC Holdings
Net Cash Provided by (Used in) Operating Activities [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	75,988	224,577	1,008,797
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including impairments)	1,644,297	1,773,673	1,787,152
Loss (gain) on investments and sale of affiliate interests, net	(180,237)	659,792	88,898
Loss (gain) on derivative contracts, net	166,489	(425,815)	(85,911)
Gain (Loss) on Extinguishment of Debt	(4,393)	575	51,712
Amortization of deferred financing costs and discounts (premiums) on indebtedness	34,440	77,356	91,226
Share-based compensation expense	47,926	159,985	98,296
Deferred income taxes	(232,048)	25,705	32,201
Decrease in right-of-use assets	46,108	44,342	43,820
Provision for doubtful accounts	84,461	88,159	68,809
Goodwill impairment (b)	163,055	0	0
Other Operating Activities, Cash Flow Statement	11,169	3,460	4,928
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable, trade	(77,703)	(45,279)	(30,379)
Prepaid expenses and other assets	(54,782)	50,419	28,343
Amounts due from and due to affiliates	59,013	(756)	3,778
Accounts payable and accrued liabilities	(39,256)	46,723	(176,855)
Deferred revenue	9,164	(14,953)	(40,929)
Interest rate swap contracts	72,707	(301,062)	(149,952)
Net Cash Provided by (Used in) Operating Activities, Total	1,826,398	2,366,901	2,823,934
Net Cash Provided by (Used in) Investing Activities [Abstract]
Capital expenditures	(1,704,811)	(1,914,282)	(1,231,715)
Payments for acquisitions, net of cash acquired	0	(2,060)	(340,444)
Payments for (Proceeds from) Other Investing Activities	(1,712)	(5,168)	(1,444)
Net Cash Provided by (Used in) Investing Activities, Total	(1,706,523)	(1,921,510)	(1,573,603)
Net Cash Provided by (Used in) Financing Activities [Abstract]
Proceeds from long-term debt	2,700,000	4,276,903	4,410,000
Repayments of Debt	(2,688,009)	(4,469,727)	(4,870,108)
Proceeds from collateralized indebtedness and related derivative contracts, net	38,902	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	0	(185,105)
Payments to acquire noncontrolling interest	(14,070)	0	0
Distributions to parent	1,793	170	763,435
Principal payments on finance lease obligations	(149,297)	(134,682)	(85,949)
Other, net	(8,324)	(5,680)	(24,961)
Net cash used in financing activities	(122,591)	(333,356)	(1,334,453)
Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Excluding Exchange Rate Effect, Total	(2,716)	112,035	(84,122)
Effect of exchange rate changes on cash and cash equivalents	(697)	291	(662)
Net increase (decrease) in cash and cash equivalents	(3,413)	112,326	(84,784)
Cash, cash equivalents and restricted cash at beginning of year	305,744	193,418	278,202
Cash, cash equivalents and restricted cash at end of year	$ 302,331	$ 305,744	$ 193,418

DESCRIPTION OF BUSINESS AND REL

DESCRIPTION OF BUSINESS AND RELATED MATTERS	12 Months Ended
DESCRIPTION OF BUSINESS AND RELATED MATTERS	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF BUSINESS AND RELATED MATTERS	DESCRIPTION OF BUSINESS AND RELATED MATTERS The Company and Related Matters Altice USA, Inc. ("Altice USA") was incorporated in Delaware on September 14, 2015. Altice USA is majority-owned by Patrick Drahi through Next Alt. S.à.r.l. ("Next Alt"). Patrick Drahi also controls Altice Group Lux S.à.r.l, formerly Altice Europe N.V. ("Altice Europe") and its subsidiaries and other entities. Altice USA is a holding company that does not conduct any business operations of its own. Altice Europe, through a subsidiary, acquired Cequel Corporation ("Cequel") on December 21, 2015 (the "Cequel Acquisition") and Cequel was contributed to Altice USA on June 9, 2016. Altice USA acquired Cablevision Systems Corporation ("Cablevision") on June 21, 2016 (the "Cablevision Acquisition"). Altice USA, through CSC Holdings, LLC (a wholly-owned subsidiary of Cablevision) and its consolidated subsidiaries ("CSC Holdings," and collectively with Altice USA, the "Company", "we", "us" and "our"), principally delivers broadband, video, and telephony services to residential and business customers, as well as proprietary content and advertising services in the United States. We market our residential services under the Optimum brand and provide enterprise services under the Lightpath and Optimum Business brands. In addition, we offer a full service mobile offering to consumers across our footprint. As these businesses are managed on a consolidated basis, we classify our operations in one segment. The accompanying consolidated financial statements ("consolidated financial statements") of Altice USA include the accounts of Altice USA and its majority-owned subsidiaries and the accompanying consolidated financial statements of CSC Holdings include the accounts of CSC Holdings and its majority-owned subsidiaries. The consolidated balance sheets and statements of operations of Altice USA are essentially identical to the consolidated balance sheets and statements of operations of CSC Holdings, with the following exceptions: Altice USA has additional cash and CSC Holdings has a higher deferred tax liability on their respective consolidated balance sheets. Additionally, income tax expense differs between Altice USA and CSC Holdings and CSC Holdings and its subsidiaries have certain intercompany receivables from and payables to Altice USA. The combined notes to the consolidated financial statements relate to the Company, which, except as noted, are essentially identical for Altice USA and CSC Holdings. All significant intercompany transactions and balances between Altice USA and CSC Holdings and their respective consolidated subsidiaries are eliminated in both sets of consolidated financial statements. Intercompany transactions between Altice USA and CSC Holdings are not eliminated in the CSC Holdings consolidated financial statements, but are eliminated in the Altice USA consolidated financial statements. The financial statements of CSC Holdings are included herein as supplemental information as CSC Holdings is not a SEC registrant. Share Repurchase Plan In June 2018, the Board of Directors of Altice USA authorized a share repurchase program of $2,000,000 , and on July 30, 2019, the Board of Directors authorized a new incremental three-year share repurchase program of $5,000,000 that took effect following the completion in August 2019 of the $2,000,000 repurchase program. In November 2020, the Board of Directors authorized an additional $2,000,000 of share repurchases, bringing the total amount of cumulative share repurchases authorized to $9,000,000. Under these repurchase programs, shares of Altice USA Class A common stock were purchased from time to time in the open market and included trading plans entered into with one or more brokerage firms in accordance with Rule 10b5-1 under the Securities Exchange Act of 1934. Size and timing of these purchases were determined based on market conditions and other factors. For the years ended December 31, 2023 and 2022, Altice USA did not repurchase any shares. For the years ended December 31, 2021, Altice USA repurchased an aggregate of 23,593,728 shares for a total purchase price of approximately $804,928. These acquired shares were retired and the cost of these shares was recorded in stockholders' equity (deficiency) in the consolidated balance sheet of Altice USA. From inception through December 31, 2023, Altice USA repurchased an aggregate of 285,507,773 shares for a total purchase price of approximately $7,808,698. The share repurchase program expired in November 2023.

SUMMARY OF SIGNIFICANT ACCOUNTI

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Dec. 31, 2023
Accounting Policies [Abstract]
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Summary of Significant Accounting Policies Revenue Recognition Residential Services We derive revenue through monthly charges to residential customers of our broadband, video, and telephony services, including installation services. In addition, we derive revenue from digital video recorder ("DVR"), video-on-demand ("VOD"), pay-per-view, and home shopping commissions which are reflected in "Residential video" revenues. We recognize broadband, video, and telephony revenues as the services are provided to a customer on a monthly basis. Each service is accounted for as a distinct performance obligation. Revenue from the sale of bundled services at a discounted rate is allocated to each product based on the standalone selling price of each performance obligation within the bundled offer. The standalone selling price requires judgment and is typically determined based on the current prices at which the separate services are sold by us. Installation revenue for our residential services is deferred and recognized over the benefit period, which is generally less than one year. The estimated benefit period takes into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer. Also, we have mobile services providing data, talk and text to consumers in or near our service areas. Customers are billed monthly for access to and usage of our mobile services. We recognize mobile service revenue ratably over the monthly service period as the services are provided to the customers. We are assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. In instances where the tax is being assessed directly on us, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customers are recorded as revenue. For the years ended December 31, 2023, 2022 and 2021, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $219,988, $232,795 and $257,364, respectively. Business and Wholesale Revenue We derive revenue from the sale of products and services to both large enterprise and small and medium-sized business ("SMB") customers, including broadband, telephony, networking, and video services reflected in "Business services and wholesale" revenues. Our business services also include Ethernet, data transport, and IP-based virtual private networks. We provide managed services to businesses, including hosted telephony services (cloud based SIP-based private branch exchange), managed WiFi, managed desktop and server backup and managed collaboration services including audio and web conferencing. We also offer fiber-to-the-tower services to wireless carriers for cell tower backhaul, which enables wireline communications service providers to connect to customers that their own networks do not reach. We recognize revenues for these services as the services are provided to a customer on a monthly basis. Substantially all of our SMB customers are billed monthly and large enterprise customers are billed in accordance with the terms of their contracts which is typically on a monthly basis. Contracts with large enterprise customers typically range from three News and Advertising Revenue News and advertising revenue is primarily derived from the sale of (i) advertising inventory available on the programming carried on our cable television systems, as well as other systems (linear revenue), (ii) digital advertising, (iii) data analytics, and (iv) affiliation fees for news programming. As part of the agreements under which we acquire video programming, we typically receive an allocation of scheduled advertising time during such programming into which our cable systems can insert commercials. In several of the markets in which we operate, we have entered into agreements commonly referred to as interconnects with other cable operators to jointly sell local advertising. In some of these markets, we represent the advertising sales efforts of other cable operators; in other markets, other cable operators represent us. We also offer customers the opportunity to advertise on digital platforms. Advertising revenues are recognized when the advertising is distributed. For arrangements in which we control the sale of advertising and act as the principal to the transaction, we recognize revenue earned from the advertising customer on a gross basis and the amount remitted to the distributor as an operating expense. For arrangements in which we do not control the sale of advertising and act as an agent to the transaction, we recognize revenue net of any fee remitted to the distributor. Revenue earned from the data-driven, audience-based advertising solutions using advanced analytics tools is recognized when services are provided. Affiliation fee revenue derived by our news business is recognized as the programming services are provided. Other Revenue Other revenue includes r evenue derived from the sale of mobile devices which is recognized upon delivery and acceptance of the equipment by the customer. Revenues derived from other sources are recognized when services are provided or events occur. Customer Contract Costs Incremental costs incurred in obtaining a contract with a customer are deferred and recorded as an asset if the period of benefit is expected to be greater than one year. Sales commissions for enterprise customers are deferred and amortized over the average contract term. As the amortization period for sales commission expenses related to residential and SMB customers is less than one year, we utilize the practical expedient and are recognizing the costs when incurred. The costs of fulfilling a contract with a customer are deferred and recorded as an asset if they generate or enhance resources for us that will be used in satisfying future performance obligations and are expected to be recovered. Installation costs related to residential and SMB customers that are not capitalized as part of the initial deployment of new customer premise equipment are expensed as incurred pursuant to industry-specific guidance. Deferred enterprise sales commission costs are included in other current and noncurrent assets in the consolidated balance sheet and totaled $18,109 and $17,511 as of December 31, 2023 and 2022, respectively. A significant portion of our revenue is derived from residential and SMB customer contracts which are month-to month. As such, the amount of revenue related to unsatisfied performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Contracts with enterprise customers generally range from three years to five years, and services may only be terminated in accordance with the contractual terms. The following table presents the composition of revenue: Years Ended December 31, 2023 2022 2021 Residential: Broadband $ 3,824,472 $ 3,930,667 $ 3,925,089 Video 3,072,011 3,281,306 3,526,205 Telephony 300,198 332,406 404,813 Mobile (a) 77,012 61,832 51,281 Residential revenue 7,273,693 7,606,211 7,907,388 Business services and wholesale (a) 1,467,149 1,474,269 1,586,423 News and advertising 447,742 520,293 550,667 Other 48,480 46,886 46,371 Total revenue $ 9,237,064 $ 9,647,659 $ 10,090,849 (a) Beginning in the second quarter of 2023, mobile service revenue previously included in mobile revenue is now separately reported in residential revenue and business services revenue. In addition, mobile equipment revenue previously included in mobile revenue is now included in other revenue. Prior period amounts have been revised to conform with this presentation. Multiple-Element Transactions In the normal course of business, we may enter into multiple-element transactions where we are simultaneously both a customer and a vendor with the same counterparty or in which we purchase multiple products and/or services, or settle outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. Our policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on our best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the value of the respective deliverable, we utilize historical transactions, quoted market prices (as available), or comparable transactions. Programming and Other Direct Costs Costs of revenue related to delivery of services and goods are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to our video service represent fees paid to programming distributors to license the programming distributed to video customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, we continue to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on our estimate of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, we receive, or may receive, incentives from programming distributors for carriage of the distributors' programming. We generally recognize these incentives as a reduction of programming costs and are recorded in "programming and other direct costs", generally over the term of the distribution agreement. Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $253,777, $299,590 and $274,639 for the years ended December 31, 2023, 2022 and 2021, respectively. Share-Based Compensation Share-based compensation expense which primarily relates to awards of stock options, restricted shares, and performance stock units, is based on the fair value of share-based payment awards at the date of grant. We recognize share-based compensation expense over the requisite service period or when it is probable any related performance condition will be met. For awards with graded vesting, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period. Share-based compensation expense related to awards that vest entirely at the end of the vesting period are expensed on a straight-line basis. We account for forfeitures as they occur. See Note 15 to the consolidated financial statements for additional information about our share-based compensation. Income Taxes Our provision for income taxes is based on current period income, changes in deferred tax assets and liabilities and changes in estimates with regard to uncertain tax positions. Deferred tax assets are subject to an ongoing assessment of realizability. Cash and Cash Equivalents Our cash investments are placed with money market funds and financial institutions that are investment grade as rated by S&P Global Ratings and Moody's Investors Service. We select money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. We consider the balance of our investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value. Accounts Receivable Accounts receivable are recorded at net realizable value. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions and reasonable and supportable forecasts that affect the collectability of the reported amounts. Investment Securities Investment securities and investment securities pledged as collateral are carried at fair value with realized and unrealized holding gains and losses included in the consolidated statements of operations. Long-Lived Assets and Amortizable Intangible Assets Property, plant and equipment, including construction materials, are carried at cost, and include all direct costs and certain indirect costs associated with the construction of cable systems, and the costs of new equipment installations. Equipment under finance leases is recorded at the present value of the total minimum lease payments. Depreciation on equipment is calculated on the straight-line basis over the estimated useful lives of the assets or, with respect to equipment under finance lease obligations and leasehold improvements, amortized over the lease term or the assets' useful lives and reported in depreciation and amortization (including impairments) in the consolidated statements of operations. We capitalize certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization. Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line method over their respective estimated useful lives. We review our long-lived assets (property, plant and equipment, and intangible assets subject to amortization) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value. Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of indefinite-lived cable franchises acquired in business combinations are not amortized. Rather, such assets are tested for impairment annually or whenever events or changes in circumstances indicate that it is more likely than not that the assets may be impaired. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit or the indefinite-lived cable franchise right is less than its carrying amount. These qualitative factors include macroeconomic conditions such as changes in interest rates, industry and market considerations, recent and projected financial performance of the reporting units, as well as other factors. A quantitative test is performed if we conclude that it is more likely than not that the fair value of a reporting unit or an indefinite-lived cable franchise right is less than its carrying amount or if a qualitative assessment is not performed. In 2023, we performed a quantitative assessment for our goodwill recoverability test and a qualitative assessment for our indefinite-lived cable franchise rights recoverability test. See Note 10 for a discussion of the results of our annual impairment tests. Goodwill Goodwill resulted from business combinations and represents the excess amount of the consideration paid over the identifiable assets and liabilities recorded in the acquisition. We test goodwill for impairment at the reporting unit level: (i) Telecommunications and (ii) News and Advertising. The quantitative test for goodwill identifies potential impairment by comparing the fair value of the reporting unit with its carrying amount. If the carrying amount of the reporting unit exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. We estimate the fair value of our reporting units by considering both (i) a discounted cash flow method, which is based on the present value of projected cash flows over a discrete projection period and a terminal value, which is based on the expected normalized cash flows of the reporting units following the discrete projection period, and (ii) a market approach, which includes the use of multiples of publicly-traded companies whose services are comparable to ours. Significant judgments in estimating the fair value of our reporting units include cash flow projections and the selection of the discount rate. The estimates and assumptions utilized in estimating the fair value of our reporting units could have a significant impact on whether an impairment charge is recognized and also the magnitude of any such charge. Fair value estimates are made at a specific point in time, based on relevant information. These estimates are subjective in nature and involve uncertainties and matters of significant judgments. Changes in assumptions could significantly affect the estimates. Indefinite-lived Cable Franchise Rights Our indefinite-lived cable franchise rights reflect the value of agreements we have with state and local governments that allow us to construct and operate a cable business within a specified geographic area and allow us to solicit and service potential customers in the service areas defined by the franchise rights currently held by us. We have concluded that our cable franchise rights have an indefinite useful life since there are no legal, regulatory, contractual, competitive, economic or other factors that limit the period over which these rights will contribute to our cash flows. For impairment testing purposes, we have concluded that our cable franchise rights are a single unit of account. When the qualitative assessment is not used, or if the qualitative assessment is not conclusive, the impairment test for our indefinite-lived cable franchise rights requires a comparison of the estimated fair value of the cable television franchise with its carrying value. If the carrying value of the indefinite-lived cable franchise rights exceed its fair value, an impairment loss is recognized in an amount equal to that excess. Estimates and assumptions utilized in estimating the fair value of our indefinite-lived cable franchise rights could have a significant impact on whether an impairment charge is recognized and also the magnitude of any such charge. Fair value estimates are made at a specific point in time, based on relevant information. These estimates are subjective in nature and involve uncertainties and matters of significant judgments. Changes in assumptions could significantly affect the estimates. Deferred Financing Costs Deferred financing costs, which are presented as a reduction of debt, are amortized to interest expense using the effective interest method over the terms of the related debt. Derivative Financial Instruments We account for derivative financial instruments as either assets or liabilities measured at fair value. We use derivative instruments to manage our exposure to market risks from changes in certain equity prices and interest rates and we do not hold or issue derivative instruments for speculative or trading purposes. These derivative instruments are not designated as hedges, and changes in the fair values of these derivatives are recognized in the consolidated statements of operations as gain (loss) on derivative contracts or gain (loss) on interest rate swap contracts. Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when we believe it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated. Foreign Currency Certain of our subsidiaries (including our international news channel and our customer care center) are located outside the United States. The functional currency for these subsidiaries is determined based on the primary economic environment in which the subsidiary operates. Revenues and expenses for these subsidiaries are translated into U.S. dollars using rates that approximate those in effect during the period and the assets and liabilities are translated into U.S. dollars using exchange rates in effect at the end of each period. The resulting gains and losses from these translations are recognized in cumulative translation adjustment included in accumulated other comprehensive income (loss) in stockholders’/member's equity (deficiency) on the consolidated balance sheets. Common Stock of Altice USA Each holder of our Class A common stock has one vote per share while holders of our Class B common stock have twenty-five votes per share. Class B shares can be converted to Class A common stock at anytime with a conversion ratio of one Class A common share for one Class B common share. The following table provides details of Altice USA's shares of common stock outstanding: Shares of Common Stock Outstanding Class A Class B Balance at December 31, 2021 270,320,798 184,333,342 Conversion of Class B common stock to Class A common stock 4,113 (4,113) Issuance of common shares in connection with the vesting of restricted stock units 1,506,186 — Treasury shares reissued 1,966 — Balance at December 31, 2022 271,833,063 184,329,229 Conversion of Class B common stock to Class A common stock 104,801 (104,801) Issuance of common shares in connection with the vesting of restricted stock units 1,357,983 — Retirement of Class A common shares due to forfeiture (1,522,965) — Treasury shares reissued 96 — Balance at December 31, 2023 271,772,978 184,224,428 CSC Holdings Membership Interests As of December 31, 2023 and 2022, CSC Holdings had 100 membership units issued and outstanding, which are all indirectly owned by Altice USA. Dividends and Distributions Altice USA Altice USA may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock. Our indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made. During 2023, 2022 and 2021, there were no dividends paid to shareholders by Altice USA. CSC Holdings CSC Holdings may make distributions on its membership interests only if sufficient funds exist as determined under Delaware law. See Note 16 for a discussion of equity distributions that CSC Holdings made to its parent. Concentrations of Credit Risk Financial instruments that may potentially subject us to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. We monitor the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. Our emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions. We did not have a single customer that represented 10% or more of our consolidated revenues for the years ended December 31, 2023, 2022 and 2021 or 10% or more of our consolidated net trade receivables at December 31, 2023, and 2022, respectively. Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 13 for a discussion of fair value estimates. Reclassifications Certain reclassifications have been made to the 2022 and 2021 amounts to conform to the 2023 presentation.

Earnings Per Share

Earnings Per Share	12 Months Ended
Earnings Per Share	Dec. 31, 2023
Earnings Per Share [Abstract]
Earnings Per Share	NET INCOME PER SHARE Basic net income per common share attributable to Altice USA stockholders is computed by dividing net income attributable to Altice USA stockholders by the weighted average number of common shares outstanding during the period. Diluted income per common share attributable to Altice USA stockholders reflects the dilutive effects of stock options, restricted stock, restricted stock units, and deferred cash-denominated awards. For awards that are performance based, the dilutive effect is reflected upon the achievement of the performance criteria. The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Altice USA stockholders: Years Ended December 31, 2023 2022 2021 (in thousands) Basic weighted average shares outstanding 454,723 453,244 458,311 Effect of dilution: Stock options — — 3,972 Restricted stock 74 38 11 Restricted stock units — — 1 Deferred cash-denominated awards (Note 15) 237 — — Diluted weighted average shares outstanding 455,034 453,282 462,295 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 46,084 57,961 15,856 Share-based compensation awards whose performance metrics have not been achieved 20,831 7,309 8,557 Net income per membership unit for CSC Holdings is not presented since CSC Holdings is a limited liability company and a wholly-owned subsidiary of Altice USA.

ALLOWANCE FOR DOUBTFUL ACCOUNTS

ALLOWANCE FOR DOUBTFUL ACCOUNTS	12 Months Ended
ALLOWANCE FOR DOUBTFUL ACCOUNTS	Dec. 31, 2023
Receivables [Abstract]
ALLOWANCE FOR DOUBTFUL ACCOUNTS	ALLOWANCE FOR DOUBTFUL ACCOUNTS Activity related to our allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2023 Allowance for doubtful accounts $ 20,767 $ 84,461 $ (83,313) $ 21,915 Year Ended December 31, 2022 Allowance for doubtful accounts $ 27,931 $ 88,159 $ (95,323) $ 20,767 Year Ended December 31, 2021 Allowance for doubtful accounts $ 25,198 $ 68,809 $ (66,076) $ 27,931

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	12 Months Ended
SUPPLEMENTAL CASH FLOW INFORMATION	Dec. 31, 2023
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Our non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2023 2022 2021 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 317,000 $ 496,135 $ 335,680 Notes payable for the purchase of equipment and other assets 213,325 132,452 89,898 Right-of-use assets acquired in exchange for finance lease obligations 133,056 160,542 145,047 Payable relating to acquisition of noncontrolling interest 7,036 — — Other non-cash investing and financing transactions 249 1,117 500 CSC Holdings: Contributions from (distributions to) parent, net 8,183 7,015 (19,500) Supplemental Data: Altice USA: Cash interest paid, net of capitalized interest 1,582,646 1,247,747 1,178,088 Income taxes paid, net 200,295 253,962 263,589 CSC Holdings: Cash interest paid, net of capitalized interest 1,582,646 1,247,747 1,178,088 Income taxes paid, net 200,295 253,962 263,589

RESTRUCTURING AND OTHER EXPENSE

RESTRUCTURING AND OTHER EXPENSE	12 Months Ended
RESTRUCTURING AND OTHER EXPENSE	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
RESTRUCTURING AND OTHER EXPENSE	RESTRUCTURING, IMPAIRMENTS AND OTHER OPERATING ITEMS Our restructuring, impairments and other operating items are comprised of the following: Years Ended December 31, 2023 2022 2021 Contractual payments for terminated employees $ 39,915 $ 4,002 $ 6,227 Facility realignment costs 2,368 5,652 2,551 Impairment of right-of-use operating lease assets 10,554 3,821 6,701 Remeasurement of contingent consideration related to an acquisition (6,345) — — Transaction costs related to certain transactions not related to our operations 5,180 4,310 1,697 Litigation settlement (a) — 112,500 — Goodwill impairment (b) 163,055 — — Restructuring, impairments and other operating items $ 214,727 $ 130,285 $ 17,176 (a) Represents the settlement of litigation in the fourth quarter of 2022, of which $65,000 was paid in 2022 and the balance of $47,500 is payable on or before June 30, 2024. (b) In connection with our annual recoverability assessment of goodwill, we recorded an impairment charge relating to our News and Advertising reporting unit for the year ended December 31, 2023. See Note 10 for additional information.

PROPERTY, PLANT AND EQUIPMENT

PROPERTY, PLANT AND EQUIPMENT	12 Months Ended
PROPERTY, PLANT AND EQUIPMENT	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT	PROPERTY, PLANT AND EQUIPMENT Costs incurred in the construction of our cable systems, including line extensions to, and upgrade of, our hybrid fiber/coaxial infrastructure and construction of the parallel fiber-to-the-home ("FTTH") infrastructure, are capitalized. This includes headend facilities and initial placement of the feeder cable to connect a customer that had not been previously connected. These costs consist of materials, subcontractor labor, direct consulting fees, and internal labor and related costs associated with the construction activities (including interest related to FTTH construction). Internal costs that are capitalized consist of salaries and benefits of our employees and a portion of facility costs that supports the construction activities. Such costs are depreciated over the estimated life of our infrastructure and our headend facilities and related equipment (5 to 25 years). Costs of operating the plant and the technical facilities, including repairs and maintenance, are expensed as incurred. Costs associated with the initial deployment of new customer premise equipment ("CPE") necessary to provide services are also capitalized. These costs include materials, subcontractor labor, internal labor, and other related costs associated with the connection activities. Departmental activities supporting the connection process are capitalized based on time-weighted activity allocations of costs. These installation costs are amortized over the estimated useful lives of the CPE. The portion of departmental costs related to disconnecting services and removing CPE from a customer, costs related to connecting CPE that has been previously connected to the network, and repairs and maintenance are expensed as incurred. The estimated useful lives assigned to our property, plant and equipment are reviewed on an annual basis or more frequently if circumstances warrant and such lives are revised to the extent necessary due to changing facts and circumstances. Any changes in estimated useful lives are reflected prospectively. Property, plant and equipment (including equipment under finance leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, Estimated 2023 2022 Customer premise equipment $ 2,242,175 $ 2,134,561 3 to 5 years Headends and related equipment 2,506,665 2,493,208 5 to 25 years Infrastructure 8,727,425 7,711,815 5 to 25 years Equipment and software 1,436,010 1,434,742 3 to 10 years Construction in progress (including materials and supplies) 353,572 499,598 Furniture and fixtures 80,585 81,518 5 to 8 years Transportation equipment 123,193 145,413 5 to 10 years Buildings and building improvements 574,162 550,884 10 to 40 years Leasehold improvements 187,608 185,645 Term of lease Land 48,804 48,793 16,280,199 15,286,177 Less accumulated depreciation and amortization (8,162,442) (7,785,397) $ 8,117,757 $ 7,500,780 For the years ended December 31, 2023, 2022 and 2021, we capitalized certain costs aggregating $147,267, $138,845 and $145,837, respectively, related to the acquisition and development of internal use software, which are included in the table above. Depreciation expense on property, plant and equipment (including finance leases) for the years ended December 31, 2023, 2022 and 2021 amounted to $1,252,919, $1,218,365 and $1,145,316, respectively.

LEASES

LEASES	12 Months Ended
LEASES	Dec. 31, 2023
Leases [Abstract]
LEASES	LEASES Our operating leases are comprised primarily of facility leases and our finance leases are comprised primarily of vehicle and equipment leases. We determine if an arrangement is a lease at inception and lease assets and liabilities are recognized upon commencement of the lease based on the present value of the future minimum lease payments over the lease term. Lease assets and liabilities are not recorded for leases with an initial term of one year or less. We generally use our incremental borrowing rate as the discount rate for leases, unless an interest rate is implicitly stated in the lease agreement. The lease term will include options to extend the lease when it is reasonably certain that we will exercise that option. Balance sheet information related to our leases is presented below: Balance Sheet location December 31, 2023 2022 Operating leases: Right-of-use lease assets Right-of-use operating lease assets $ 255,545 $ 250,601 Right-of-use lease liability, current Other current liabilities 47,965 38,740 Right-of-use lease liability, long-term Right-of-use operating lease liability 264,647 260,237 Finance leases: Right-of-use lease assets Property, plant and equipment 326,427 332,217 Right-of-use lease liability, current Current portion of long-term debt 123,636 129,657 Right-of-use lease liability, long-term Long-term debt 104,720 114,938 The following provides details of our lease expense: Years Ended December 31, 2023 2022 Operating lease expense, net $ 62,157 $ 58,124 Finance lease expense: Amortization of assets 95,449 86,455 Interest on lease liabilities 14,912 11,332 Total finance lease expense 110,361 97,787 $ 172,518 $ 155,911 Other information related to our leases is presented below: As of December 31, 2023 2022 Right-of-use assets acquired in exchange for operating lease obligations $ 60,108 $ 74,063 Cash Paid For Amounts Included In Measurement of Liabilities: Operating cash flows from finance leases 14,912 11,332 Operating cash flows from operating leases 63,737 65,879 Weighted Average Remaining Lease Term: Operating leases 8.2 years 8.1 years Finance leases 2.2 years 2.0 years Weighted Average Discount Rate: Operating leases 5.70 % 5.63 % Finance leases 7.78 % 5.49 % The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2024 $ 136,863 $ 58,367 2025 76,968 54,781 2026 26,475 50,883 2027 4,921 47,799 2028 3,743 38,055 Thereafter 809 146,237 Total future minimum lease payments, undiscounted 249,779 396,122 Less: Imputed interest (21,423) (83,510) Present value of future minimum lease payments $ 228,356 $ 312,612

INTANGIBLE ASSETS

INTANGIBLE ASSETS	12 Months Ended
INTANGIBLE ASSETS	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	INTANGIBLE ASSETS Our amortizable intangible assets primarily consist of customer relationships acquired pursuant to business combinations and represent the value of the business relationship with those customers. The following table summarizes information relating to our acquired amortizable intangible assets: As of December 31, 2023 As of December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,073,152 $ (4,824,140) $ 1,249,012 $ 6,123,586 $ (4,484,286) $ 1,639,300 3 to 18 years Trade names 1,010,300 (1,010,300) — 1,024,300 (1,018,212) 6,088 4 to 10 years Other amortizable intangibles 50,495 (40,172) 10,323 62,119 (47,176) 14,943 1 to 15 years $ 7,133,947 $ (5,874,612) $ 1,259,335 $ 7,210,005 $ (5,549,674) $ 1,660,331 During the third quarter of 2022, we reduced the gross carrying amount and accumulated amortization of our fully amortized Suddenlink trademark by approximately $56,783, as we rebranded our entire footprint under the Optimum trademark. Amortization expense for the years ended December 31, 2023, 2022 and 2021 aggregated $391,378, $555,308, and $641,836, respectively. The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2024 $309,717 Year Ending December 31, 2025 262,152 Year Ending December 31, 2026 217,182 Year Ending December 31, 2027 173,411 Year Ending December 31, 2028 130,122 Goodwill and the value of indefinite-lived cable franchises acquired in business combinations are not amortized. Rather, such assets are tested for impairment annually or whenever events or changes in circumstances indicate that it is more likely than not that the assets may be impaired. See Note 2 for additional for additional information. The carrying amount of indefinite-lived cable franchise rights and goodwill is presented below: Indefinite-lived Cable Franchise Rights Goodwill Balance as of December 31, 2021 $ 13,216,355 $ 8,205,863 Goodwill recorded in connection with acquisitions — 2,910 Balance as of December 31, 2022 13,216,355 8,208,773 Adjustment related to 2022 acquisition — (1,002) Goodwill impairment — (163,055) Balance as of December 31, 2023 $ 13,216,355 $ 8,044,716 Goodwill Impairment

DEBT

DEBT	12 Months Ended
DEBT	Dec. 31, 2023
Debt Disclosure [Abstract]
DEBT	DEBT The following table provides details of our outstanding debt: Interest Rate at December 31, 2023 December 31, 2022 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: May 23, 2014 June 1, 2024 5.250% $ 750,000 $ 742,746 $ 750,000 $ 726,343 October 18, 2018 April 1, 2028 7.500% 4,118 4,114 4,118 4,113 November 27, 2018 April 1, 2028 7.500% 1,045,882 1,044,933 1,045,882 1,044,752 July 10 and October 7, 2019 January 15, 2030 5.750% 2,250,000 2,275,915 2,250,000 2,279,483 June 16 and August 17. 2020 December 1, 2030 4.625% 2,325,000 2,359,078 2,325,000 2,363,082 May 13, 2021 November 15, 2031 5.000% 500,000 498,525 500,000 498,375 6,875,000 6,925,311 6,875,000 6,916,148 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500% 1,310,000 1,307,709 1,310,000 1,307,091 January 29, 2018 February 1, 2028 5.375% 1,000,000 995,940 1,000,000 995,078 January 24, 2019 February 1, 2029 6.500% 1,750,000 1,748,098 1,750,000 1,747,795 June 16, 2020 December 1, 2030 4.125% 1,100,000 1,096,499 1,100,000 1,096,077 August 17, 2020 February 15, 2031 3.375% 1,000,000 997,556 1,000,000 997,258 May 13, 2021 November 15, 2031 4.500% 1,500,000 1,495,598 1,500,000 1,495,144 April 25, 2023 May 15, 2028 11.250% 1,000,000 994,072 — — 8,660,000 8,635,472 7,660,000 7,638,443 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility July 13, 2027 7.712% (b) 825,000 821,632 1,575,000 1,570,730 Term Loan B July 17, 2025 7.726% (c)(g) 1,520,483 1,518,530 1,535,842 1,532,644 Incremental Term Loan B-3 January 15, 2026 7.726% (d)(g) 521,744 520,988 527,014 525,883 Incremental Term Loan B-5 April 15, 2027 7.976% (e)(g) 2,887,500 2,876,131 2,917,500 2,902,921 Incremental Term Loan B-6 January 15, 2028 9.862% (f) 1,986,928 1,948,503 2,001,942 1,955,839 7,741,655 7,685,784 8,557,298 8,488,017 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625% 415,000 409,136 415,000 408,090 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875% 450,000 444,410 450,000 443,046 Lightpath Term Loan November 30, 2027 8.726% 582,000 571,898 588,000 575,478 Lightpath Revolving Credit Facility — — — — 1,447,000 1,425,444 1,453,000 1,426,614 Collateralized indebtedness (see Note 12) — — 1,759,017 1,746,281 Finance lease obligations (see Note 9) 228,356 228,356 244,595 244,595 Notes payable and supply chain financing 174,594 174,594 127,635 127,635 25,126,605 25,074,961 26,676,545 26,587,733 Less: current portion of credit facility debt (61,177) (61,177) (71,643) (71,643) Less: current portion of collateralized indebtedness (h) — — (1,759,017) (1,746,281) Less: current portion of finance lease obligations (123,636) (123,636) (129,657) (129,657) Less: current portion of notes payable and supply chain financing (174,594) (174,594) (127,496) (127,496) (359,407) (359,407) (2,087,813) (2,075,077) Long-term debt $ 24,767,198 $ 24,715,554 $ 24,588,732 $ 24,512,656 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums and with respect to certain notes, a fair value adjustment resulting from the Cequel and Cablevision acquisitions. (b) At December 31, 2023, $133,512 of the revolving credit facility was restricted for certain letters of credit issued on our behalf and $1,516,488 of the $2,475,000 facility was undrawn and available, subject to covenant limitations. The revolving credit facility bears interest at a rate of SOFR (plus a Term SOFR credit adjustment spread of 0.10%) plus 2.25% per annum. (c) Term Loan B requires quarterly installments of $3,840 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.25% per annum. (d) Incremental Term Loan B-3 requires quarterly installments of $1,318 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.25% per annum. (e) Incremental Term Loan B-5 requires quarterly installments of $7,500 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.50% per annum. (f) Incremental Term Loan B-6 requires quarterly installments of $5,005 and bears interest at a rate equal to SOFR plus 4.50% per annum. The CSC Holdings' Incremental Term Loan B-6 that is due on the earlier of (i) January 15, 2028 and (ii) April 15, 2027 if, as of such date, any Incremental Term Loan B-5 borrowings are still outstanding, unless the Incremental Term Loan B-5 maturity date has been extended to a date falling after January 15, 2028. (g) Pursuant to the term loan agreement, the interest rate on outstanding borrowings subsequent to the phase-out of London Interbank Offered Rate ("LIBOR") as of June 30, 2023, is Synthetic USD LIBOR, calculated as Term SOFR plus the spread adjustment for the corresponding LIBOR setting, being 0.11448% (1 month), 0.26161% (3 month) and 0.42826% (6 month), until September 30, 2024. (h) The indebtedness was collateralized by shares of Comcast common stock. In January 2023, we settled this debt by delivering shares of Comcast common stock and the related equity derivative contracts. See Note 12. For financing purposes, we have two debt silos: CSC Holdings and Lightpath. The CSC Holdings silo is structured as a restricted group (the "Restricted Group") and an unrestricted group, which includes certain designated subsidiaries and investments (the "Unrestricted Group"). The Restricted Group is comprised of CSC Holdings and substantially all of its wholly-owned operating subsidiaries excluding Lightpath. These Restricted Group subsidiaries are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by CSC Holdings. The Lightpath silo includes all of its operating subsidiaries which are subject to the covenants and restrictions of the credit facility and indentures governing the notes issued by Lightpath. See discussion below regarding the Lightpath debt financing. CSC Holdings Credit Facilities In October 2015, a wholly-owned subsidiary of Altice USA, which merged with and into CSC Holdings on June 21, 2016, entered into a senior secured credit facility, which, as amended, currently provides for U.S. dollar term loans (the "Term Loan B", and the term loans under the Term Loan B, the "CSC Term Loans") and U.S. dollar revolving loan commitments (the "CSC Revolving Credit Facility" and, together with the Term Loan B, the "CSC Credit Facilities"), which are governed by a credit facilities agreement entered into by, inter alios, CSC Holdings, certain lenders party thereto and JPMorgan Chase Bank, N.A. as administrative agent and security agent (as amended, restated, supplemented or otherwise modified from time to time, the "CSC Credit Facilities Agreement"). Amounts outstanding under the CSC Holdings Credit Facilities bear interest, at our election, at Term Secured Overnight Financing Rate ("SOFR"), Synthetic USD LIBOR, or at an alternate base rate, as defined therein, plus an applicable margin. During the year ended December 31, 2023, CSC Holdings borrowed $1,700,000 under its revolving credit facility and repaid $2,450,000 of amounts outstanding under the revolving credit facility. The CSC Credit Facilities Agreement requires the prepayment of outstanding CSC Term Loans, subject to certain exceptions and deductions, with (i) 100% of the net cash proceeds of certain asset sales, subject to reinvestment rights and certain other exceptions; and (ii) on a pari ratable share (based on the outstanding principal amount of the CSC Term Loans divided by the sum of the outstanding principal amount of all pari passu indebtedness and the CSC Term Loans) of 50% of annual excess cash flow, which will be reduced to 0% if the consolidated net senior secured leverage ratio of CSC Holdings is less than or equal to 4.5 to 1. The obligations under the CSC Credit Facilities are guaranteed on a senior basis by each restricted subsidiary of CSC Holdings (other than CSC TKR, LLC and its subsidiaries, Lightpath, and certain excluded subsidiaries) and, subject to certain limitations, will be guaranteed by each future material wholly-owned restricted subsidiary of CSC Holdings. The obligations under the CSC Credit Facilities (including any guarantees thereof) are secured on a first priority basis, subject to any liens permitted by the CSC Credit Facilities, by capital stock held by CSC Holdings or any guarantor in certain subsidiaries of CSC Holdings, subject to certain exclusions and limitations. The CSC Credit Facilities Agreement includes certain negative covenants which, among other things and subject to certain significant exceptions and qualifications, limit CSC Holdings' ability and the ability of its restricted subsidiaries to: (i) incur or guarantee additional indebtedness, (ii) make investments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances; and (viii) engage in mergers or consolidations. In addition, the CSC Revolving Credit Facility includes a financial maintenance covenant solely for the benefit of the lenders under the CSC Revolving Credit Facility consisting of a maximum consolidated net senior secured leverage ratio of CSC Holdings and its restricted subsidiaries of 5.0 to 1.0. The financial covenant is tested on the last day of any fiscal quarter, but only if on such day there are outstanding borrowings, as defined, under the CSC Revolving Credit Facility. The CSC Credit Facilities Agreement also contains certain customary representations and warranties, affirmative covenants and events of default (including, among others, an event of default upon a change of control). If an event of default occurs, the lenders under the CSC Credit Facilities will be entitled to take various actions, including the acceleration of amounts due under the CSC Credit Facilities and all actions permitted to be taken by a secured creditor. Issuances of CSC Holdings Senior Guaranteed Notes In April 2023, CSC Holdings issued $1,000,000 in aggregate principal amount of senior guaranteed notes that bear interest at a rate of 11.250% and mature on May 15, 2028. The Company used the proceeds to repay outstanding borrowings drawn under the Revolving Credit Facility. CSC Holdings Senior Guaranteed Notes and Senior Notes The indentures under which the Senior Guaranteed Notes and Senior Notes were issued contain certain customary covenants and agreements, including limitations on the ability of CSC Holdings and its restricted subsidiaries to (i) incur or guarantee additional indebtedness, (ii) make investments or other restricted payments, (iii) create liens, (iv) sell assets and subsidiary stock, (v) pay dividends or make other distributions or repurchase or redeem our capital stock or subordinated debt, (vi) engage in certain transactions with affiliates, (vii) enter into agreements that restrict the payment of dividends by subsidiaries or the repayment of intercompany loans and advances, and (viii) engage in mergers or consolidations, in each case subject to certain exceptions. The indentures also contain certain customary events of default. If an event of default occurs, the obligations under the notes may be accelerated. Subject to customary conditions, we may redeem some or all of the notes at the redemption price set forth in the relevant indenture, plus accrued and unpaid interest, plus a specified "make-whole" premium (in the event the notes are redeemed prior to a certain specified time set forth in the indentures). Lightpath Credit Facility On September 29, 2020, Lightpath entered into a credit agreement between, inter alios, certain lenders party thereto and Goldman Sachs Bank USA, as administrative agent, and Deutsche Bank Trust Company Americas, as collateral agent, (the "Lightpath Credit Agreement") which provides for, among other things, (i) a term loan in an aggregate principal amount of $600,000 (the “Lightpath Term Loan Facility”) at a price of 99.50% of the aggregate principal amount, which was drawn on November 30, 2020, and (ii) revolving loan commitments in an aggregate principal amount of $100,000 (the “Lightpath Revolving Credit Facility"). As of December 31, 2023 and 2022, there were no borrowings outstanding under the Lightpath Revolving Credit Facility. We are required to make scheduled quarterly payments of $1,500 pursuant to the Lightpath Term Loan Facility. In June 2023, Lightpath entered into an amendment (the "First Amendment") under its existing credit facility agreement to replace LIBOR-based benchmark rates with SOFR-based benchmark rates. The First Amendment provides for interest on borrowings under its term loan and revolving credit facility to be calculated for any (i) SOFR loan, at a rate per annum equal to the Term SOFR (plus spread adjustments of 0.11448%, 0.26161% and 0.42826% for interest periods of one, three and six months, respectively) or (ii) the alternate base rate loan, at the alternative base rate as applicable, plus the applicable margin in each case, where the applicable margin is 2.25% per annum with respect to any alternate base rate loan and 3.25% per annum with respect to any SOFR loan. Debt issued by Lightpath is subject to certain restrictive covenants. Lightpath is subject to incurrence based covenants, which do not require ongoing compliance with financial ratios, but place certain limitations on the Lightpath's ability to, among other things, incur or guarantee additional debt (including to finance new acquisitions), create liens, pay dividends and other distributions or prepay subordinated indebtedness, make investments, sell assets, engage in affiliate transactions or engage in mergers or consolidations. These covenants are subject to several important exceptions and qualifications. To be able to incur additional debt under an applicable debt instrument, Lightpath must either meet the ratio test described below (on a pro forma basis for any contemplated transaction giving rise to the debt incurrence) or have available capacity under the general debt basket or meet certain other exceptions to the limitation on indebtedness covenant in such debt instrument. Senior debt of Lightpath will be subject to an incurrence test of 6.75:1 (Consolidated Net Leverage to L2QA Pro Forma EBITDA (each as defined in the relevant debt instruments)) and senior secured debt of Lightpath will be subject to an incurrence test of 4.75:1 (Consolidated Net Senior Secured Leverage (as defined in the relevant debt instrument) to L2QA Pro Forma EBITDA). Debt Compliance As of December 31, 2023, CSC Holdings and Lightpath were in compliance with applicable financial covenants under their respective credit facilities and with applicable financial covenants under each respective indenture by which the senior guaranteed notes, senior secured notes and senior notes were issued. Gain (Loss) on Extinguishment of Debt and the Write-off of Deferred Financing Costs The following table provides a summary of the gain (loss) on extinguishment of debt and the write-off of deferred financing costs recorded by us: For the Year Ended December 31, 2023 2022 2021 Settlement of collateralized debt (see Note 12) $ 4,393 $ — $ — Refinancing of CSC Holdings Term Loan B and Incremental Term Loan B-3 — (575) — Repayment of CSC Holdings 5.500% Senior Guaranteed Notes due 2026 — — (51,712) Supply Chain Financing Arrangement We have a supply chain financing arrangement with a financial institution with credit availability of $175,000 that is used to finance certain of our property and equipment purchases. This arrangement extends our repayment terms beyond a vendor’s original invoice due dates (for up to one year) and as such are classified as debt on our consolidated balance sheets. The following is a rollforward of the outstanding balances relating to our supply chain financing arrangement: Balance as of December 31, 2022 $ 123,880 Invoices financed 213,325 Repayments (162,751) Balance as of December 31, 2023 $ 174,454 Summary of Debt Maturities The future principal payments under our various debt obligations outstanding as of December 31, 2023, including notes payable and supply chain financing, but excluding finance lease obligations (see Note 9), are as follows: Years Ending December 31, 2024 $ 1,001,242 2025 (a) 2,391,415 2026 567,223 2027 5,141,519 2028 (b) 5,371,850 Thereafter 10,425,000 (a) Includes $825,000 principal amount related to the CSC Holdings' revolving credit facility. As a result of the debt transaction in January 2024 discussed in Note 18, the revolving credit facility will mature on July 13, 2027. (b) Includes $1,906,850 principal amount related to the CSC Holdings' Incremental Term Loan B-6 that is due on the earlier of (i) January 15, 2028 and (ii) April 15, 2027 if, as of such date, any Incremental Term Loan B-5 borrowings are still outstanding, unless the Incremental Term Loan B-5 maturity date has been extended to a date falling after January 15, 2028.

DERIVATIVE CONTRACTS AND COLLAT

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	12 Months Ended
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS Prepaid Forward Contracts Historically, we had entered into various transactions to limit the exposure against equity price risk on shares of Comcast Corporation ("Comcast") common stock we previously owned. We monetized all of our stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. We received cash proceeds upon execution of the prepaid forward contracts which had been reflected as collateralized indebtedness in the accompanying consolidated balance sheet as of December 31, 2022. In addition, we separately accounted for the equity derivative component of the prepaid forward contracts. These equity derivatives were not designated as hedges for accounting purposes, therefore, the net fair values of the equity derivatives had been reflected in the accompanying consolidated balance sheet as an asset at December 31, 2022, and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts were included in gain (loss) on derivative contracts in the accompanying consolidated statements of operations. In January 2023, we settled our outstanding collateralized indebtedness by delivering the Comcast shares we held and the related equity derivative contracts which resulted in us receiving net cash of approximately $50,500 (including dividends of $11,598) and recorded a gain on the extinguishment of debt of $4,393. As of December 31, 2023, we did not hold and have not issued equity derivative instruments for trading or speculative purposes. Interest Rate Swap Contracts To manage interest rate risk, we have from time to time entered into interest rate swap contracts to adjust the proportion of total debt that is subject to variable and fixed interest rates. Such contracts effectively fix the borrowing rates on floating rate debt to provide an economic hedge against the risk of rising rates and/or effectively convert fixed rate borrowings to variable rates to permit us to realize lower interest expense in a declining interest rate environment. We monitor the financial institutions that are counterparties to our interest rate swap contracts and we only enter into interest rate swap contracts with financial institutions that are rated investment grade. All such contracts are not designated as hedges for accounting purposes and are carried at their fair market values on our consolidated balance sheets, with changes in fair value reflected in the consolidated statements of operations. The following represents the location of the assets associated with our derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2023 2022 Asset Derivatives: Prepaid forward contracts Derivative contracts $ — $ 263,873 Interest rate swap contracts Other assets, long-term 112,914 185,622 $ 112,914 $ 449,495 The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying Comcast common stock: Years Ended December 31, 2023 2022 2021 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ (166,489) $ 425,815 $ 85,911 Change in fair value of Comcast common stock included in gain (loss) on investments 192,010 (659,792) (88,917) Gain on interest rate swap contracts, net 32,664 271,788 92,735 Interest Rate Swap Contract In connection with the phase-out of LIBOR as of June 30, 2023, the Company entered into amendments to its existing interest rate swap contracts that transitioned the reference rates from LIBOR to SOFR. These amendments had no impact to our consolidated financial statements as we utilized the expedients set forth in FASB Topic 848, Reference Rate Reform. The following is a summary of the terms of the amended interest rate swap contracts: Notional Amount Prior to Amendments Subsequent to Amendments Maturity Date Company Pays Company Receives Company Pays Company Receives CSC Holdings: January 2025 (a) $ 500,000 Fixed rate of 1.53% Three-month LIBOR Fixed rate of 1.3281% One-month SOFR January 2025 (a) 500,000 Fixed rate of 1.625% Three-month LIBOR Fixed rate of 1.4223% One-month SOFR January 2025 (a) 500,000 Fixed rate of 1.458% Three-month LIBOR Fixed rate of 1.2567% One-month SOFR December 2026 (b) 750,000 Fixed rate of 2.9155% Three-month LIBOR Fixed rate of 2.7129% One-month SOFR December 2026 (b) 750,000 Fixed rate of 2.9025% Three-month LIBOR Fixed rate of 2.6999% One-month SOFR Lightpath: December 2026 (a) 300,000 Fixed rate of 2.161% One-month LIBOR Fixed rate of 2.11% One-month SOFR (a) Amended rates effective June 15, 2023. (b) Amended rates effective July 17, 2023. In April 2023, Lightpath entered into an interest rate swap contract, effective June 2023 on a notional amount of $180,000, whereby Lightpath pays interest of 3.523% through December 2026 and receives interest based on one-month SOFR. This swap contract is also not designated as a hedge for accounting purposes. Accordingly, this contract is carried at its fair market value on our consolidated balance sheet, with changes in fair value reflected in the consolidated statements of operations.

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	12 Months Ended
FAIR VALUE MEASUREMENT	Dec. 31, 2023
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENT	FAIR VALUE MEASUREMENT The fair value hierarchy is based on inputs to valuation techniques that are used to measure fair value that are either observable or unobservable. Observable inputs reflect assumptions market participants would use in pricing an asset or liability based on market data obtained from independent sources while unobservable inputs reflect a reporting entity's pricing based upon their own market assumptions. The fair value hierarchy consists of the following three levels: • Level I - Quoted prices for identical instruments in active markets. • Level II - Quoted prices for similar instruments in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations whose inputs are observable or whose significant value drivers are observable. • Level III - Instruments whose significant value drivers are unobservable. The following table presents our financial assets and financial liabilities that are measured at fair value on a recurring basis and their classification under the fair value hierarchy: Fair Value December 31, 2023 2022 Assets: Money market funds Level I $ 49,541 $ 141,137 Investment securities pledged as collateral Level I — 1,502,145 Prepaid forward contracts (a) Level II — 263,873 Interest rate swap contracts Level II 112,914 185,622 Liabilities: Contingent consideration related to acquisition Level III 2,037 8,383 (a) In January 2023, the Company settled its outstanding collateralized indebtedness by delivering the Comcast shares it held and the related equity derivative contracts. The Company's money market funds which are classified as cash equivalents and investment securities pledged as collateral are classified within Level I of the fair value hierarchy because they are valued using quoted market prices. The Company's derivative contracts and liabilities under derivative contracts on the Company's consolidated balance sheets are valued using market-based inputs to valuation models. These valuation models require a variety of inputs, including contractual terms, market prices, yield curves, and measures of volatility. When appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads and credit risk considerations. Such adjustments are generally based on available market evidence. Since model inputs can generally be verified and do not involve significant management judgment, the Company has concluded that these instruments should be classified within Level II of the fair value hierarchy. The fair value of the contingent consideration as of December 31, 2023 and 2022 related to an acquisition in the third quarter of 2022 and were determined using a probability assessment of the contingent payment for the respective periods. Fair Value of Financial Instruments The following methods and assumptions were used to estimate fair value of each class of financial instruments for which it is practicable to estimate: Credit Facility Debt, Collateralized Indebtedness, Senior Notes, Senior Guaranteed Notes, Senior Secured Notes, Notes Payable and Supply Chain Financing The fair values of each of the Company's debt instruments are based on quoted market prices for the same or similar issues or on the current rates offered to the Company for instruments of the same remaining maturities. The fair value of notes payable is based primarily on the present value of the remaining payments discounted at the borrowing cost. The carrying value of outstanding amounts related to supply chain financing agreements approximates the fair value due to their short-term maturity (less than one year). The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized below: December 31, 2023 December 31, 2022 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 8,257,682 $ 8,323,654 $ 9,063,495 $ 9,145,298 Collateralized indebtedness (b) Level II — — 1,746,281 1,731,771 Senior guaranteed and senior secured notes Level II 9,079,882 7,784,288 8,081,489 6,154,075 Senior notes Level II 7,334,447 4,932,931 7,324,238 4,531,300 Notes payable and supply chain financing Level II 174,594 174,594 127,635 127,608 $ 24,846,605 $ 21,215,467 $ 26,343,138 $ 21,690,052 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums. (b) In January 2023, the Company settled its outstanding collateralized indebtedness by delivering the Comcast shares it held and the related equity derivative contracts.

INCOME TAXES

INCOME TAXES	12 Months Ended
INCOME TAXES	Dec. 31, 2022
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Altice USA files a federal consolidated and certain state combined income tax returns with its 80% or more owned subsidiaries. CSC Holdings and its subsidiaries are included in the consolidated federal income tax returns of Altice USA. The income tax provision for CSC Holdings is determined on a stand-alone basis for all periods presented as if CSC Holdings filed separate consolidated income tax returns. In accordance with a tax sharing agreement between CSC Holdings and Altice USA, CSC Holdings has an obligation to Altice USA for its stand-alone current tax liability as if it filed separate income tax returns. Income tax expense for the years ended December 31, 2023, 2022 and 2021 consist of the following components: Altice USA CSC Holdings Years Ended December 31, Years Ended December 31, 2023 2022 2021 2023 2022 2021 Current expense (benefit): Federal $ 227,189 $ 133,329 $ 168,397 $ 227,189 $ 133,329 $ 179,032 State 54,130 81,076 56,211 62,312 88,068 56,211 Foreign 105 128 (3) 105 128 (3) 281,424 214,533 224,605 289,606 221,525 235,240 Deferred expense (benefit): Federal (210,378) (43,797) 70,989 (210,378) (43,797) 70,989 State (16,547) 80,356 (30,108) (21,680) 69,676 (38,608) Foreign 10 (174) (180) 10 (174) (180) (226,915) 36,385 40,701 (232,048) 25,705 32,201 54,509 250,918 265,306 57,558 247,230 267,441 Tax expense relating to uncertain tax positions (14,981) 44,922 29,669 (14,981) 44,922 29,669 Income tax expense $ 39,528 $ 295,840 $ 294,975 $ 42,577 $ 292,152 $ 297,110 The income tax expense attributable to operations differs from the amount derived by applying the statutory federal rate to pretax income principally due to the effect of the following items: Altice USA CSC Holdings Years Ended December 31, Years Ended December 31, 2023 2022 2021 2023 2022 2021 Federal tax expense at statutory rate $ 24,899 $ 108,513 $ 274,240 $ 24,899 $ 108,513 $ 274,240 State income taxes, net of federal impact 6,436 26,527 21,492 9,842 28,768 13,973 Minority interest (5,494) (5,914) (5,092) (5,494) (5,914) (5,092) Changes in the valuation allowance 13,847 20,176 13,573 14,099 15,494 12,793 Change in New York state rate to measure deferred taxes, net of federal impact — 112,117 — — 112,117 — Other changes in the state rates used to measure deferred taxes, net of federal impact 23,909 (9,603) (6,924) 23,300 (10,849) (7,125) Tax expense (benefit) relating to uncertain tax positions (14,311) 36,281 24,580 (14,311) 36,281 24,580 Tax credits (4,201) (3,544) (2,500) (4,201) (3,544) (2,500) Excess tax deficiencies (benefits) related to share-based compensation including non-deductible carried unit plans 11,696 10,321 (2,602) 11,696 10,321 (2,602) Non-deductible officers compensation 3,934 4,916 7,201 3,934 4,916 7,201 Foreign losses of disregarded entities (6,097) (6,352) — (6,097) (6,352) — Business dispositions (46,591) — (12,643) (46,591) — (12,643) Goodwill impairment 34,241 — — 34,241 — — Other permanent differences — — (22,613) — — (22,613) Other, net (2,740) 2,402 6,263 (2,740) 2,401 16,898 Income tax expense $ 39,528 $ 295,840 $ 294,975 $ 42,577 $ 292,152 $ 297,110 Due to the sale of our Cheddar News business in December 2023 to an unrelated third party, we recognized a capital loss resulting in an income tax benefit. In addition, our income tax expense was impacted by the non-deductibility of the impairment of goodwill related to our News and Advertising business (see Note 10). In December 2022, the New York State Division of Tax Appeals, via an Administrative Law Judge determination, published a decision in Charter Communications, Inc. versus New York State, which concluded that each corporation in a combined reporting group would have to separately qualify as a qualified emerging technology company (“QETC”) to use the preferential QETC tax rate. As we had been historically using the QETC rate at the combined reporting group level, we recorded a cumulative income tax expense of $157,300 that included both a revaluation of state deferred taxes and an increase to our uncertain tax positions reserve for tax years 2017 through 2022 based on this published decision. In 2021, due to internal restructuring of i24NEWS and a permanent reduction in tax relating to the Opportunity Zones commitment (see note below), a permanent tax benefit of $35,256 was recognized. The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows: Altice USA CSC Holdings December 31, December 31, 2023 2022 2023 2022 Noncurrent NOLs, capital loss, and tax credit carry forwards (a) $ 130,134 $ 117,995 $ 104,071 $ 86,547 Compensation and benefit plans 90,853 97,115 90,853 97,115 Restructuring liability 7,220 2,079 7,220 2,079 Other liabilities 50,440 48,433 50,440 48,433 Research and experimental expenditures 33,427 22,292 33,427 22,292 Derivative contracts (40,357) 315,861 (40,357) 315,861 Interest deferred for tax purposes 536,284 272,842 536,284 272,842 Operating lease liability 79,263 71,232 79,263 71,232 Deferred tax assets 887,264 947,849 861,201 916,401 Less: Valuation allowance (87,407) (73,560) (64,844) (50,745) Net deferred tax assets, noncurrent 799,857 874,289 796,357 865,656 Deferred tax liabilities: Fixed assets and intangibles (5,250,112) (5,185,319) (5,250,112) (5,185,319) Operating lease asset (64,163) (58,360) (64,163) (58,360) Investments 1,519 (393,700) 1,519 (393,700) Partnership investments (173,198) (155,434) (173,198) (155,434) Prepaid expenses (14,630) (11,477) (14,630) (11,477) Fair value adjustments related to debt and deferred financing costs (1,751) (5,698) (1,751) (5,698) Opportunity Zone tax deferral (145,655) (145,608) (145,655) (145,608) Deferred tax liability, noncurrent (5,647,990) (5,955,596) (5,647,990) (5,955,596) Total net deferred tax liabilities $ (4,848,133) $ (5,081,307) $ (4,851,633) $ (5,089,940) (a) Includes deferred tax assets of $326 and $354 as of December 31, 2023 and 2022, respectively, that relate to the net operating losses of foreign subsidiaries which are presented under Other assets on the consolidated balance sheets. Under the Tax Cuts & Jobs Act (“TCJA”) enacted in December 2017, research and experimental expenditures are required to be capitalized and amortized for the tax years beginning after December 31, 2021. As a result, we have capitalized (net of amortization) $33,427 and $22,292 as of December 31, 2023 and 2022, respectively. As a result of us selling our 1% interest in Newsday LLC, as well as internal restructuring of i24NEWS in 2021, capital losses of $235,316 and $104,171, respectively, were recognized for tax purposes. In the fourth quarter of 2022, we carried back the net capital loss against the taxable capital gain generated in connection with the 49.99% sale of Lightpath in 2020. In addition, we received $48,645 in 2021 relating to a refund request for prior year AMT credits, including $12,161 claimed in 2020 due to the CARES Act acceleration of credits. Deferred tax assets have resulted primarily from our future deductible temporary differences and NOLs. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax asset will not be realized. In evaluating the need for a valuation allowance, management takes into account various factors, including the expected level of future taxable income, available tax planning strategies and reversals of existing taxable temporary differences. If such estimates and related assumptions change in the future, we may be required to record additional valuation allowances against its deferred tax assets, resulting in additional income tax expense in our consolidated statements of operations. Management evaluates the realizability of the deferred tax assets and the need for additional valuation allowances quarterly. Due to the significant deferred tax liabilities associated with our fixed assets and intangibles, primarily due to the change in the 2017 TCJA, allowing 100% bonus depreciation on most fixed assets (this percentage decreases to 80% for 2023), as well as the continued taxable income adjustments associated with the deferred tax liabilities established under purchase accounting pursuant to the Cablevision and Cequel acquisitions in 2016, the future taxable income that will result from the reversal of existing taxable temporary differences for which deferred tax liabilities are recognized is sufficient to conclude it is more likely than not that we will realize all of its gross deferred tax assets, except those deferred tax assets against which a valuation allowance has been recorded which relate to certain state NOLs and the foreign NOLs in i24NEWS. In the normal course of business, we engage in transactions in which the income tax consequences may be uncertain. Our income tax returns are filed based on interpretation of tax laws and regulations. Such income tax returns are subject to examination by taxing authorities. For financial statement purposes, we only recognize tax positions that it believes are more likely than not of being sustained. There is considerable judgment involved in determining whether positions taken or expected to be taken on the tax return are more likely than not of being sustained. Changes in the liabilities for uncertain tax positions are recognized in the interim period in which the positions are effectively settled or there is a change in factual circumstances. The following is the activity relating to our liability for uncertain tax positions: Years Ended December 31, 2023 2022 2021 Balance at beginning of year $ 70,593 $ 25,296 $ 1,301 Increases (decreases) from prior period positions (18,714) 871 (637) Increases from current period positions 1,131 44,426 24,632 Balance at end of year $ 53,010 $ 70,593 $ 25,296 Interest and penalties related to unrecognized tax benefits (“UTBs”) are included in our provision for income taxes. We recognized a net expense (benefit) for interest and penalties of $1,475, $9,683 and $6,159 during the years ended December 31, 2023, 2022, and 2021, respectively. As of December 31, 2023 and 2022, accrued interest and penalties associated with UTBs were $18,264 and $16,789, respectively. The increase in interest and penalties for the year ended December 31, 2023 was primarily due to an interest accrual on our QETC reserve position (see discussion above). We are not expecting a material change in this reserve due to expiring statutes, audit activity, or tax payments in the next twelve months. If we were to prevail on all uncertain positions, the net effect would result in an income tax benefit of $40,961. The most significant jurisdictions in which we are required to file income tax returns include the states of New York, New Jersey, Connecticut, and the City of New York. The State and City of New York are presently auditing income tax returns for tax years 2015 through 2019. The State of New Jersey is presently auditing income tax returns for tax years 2014 through 2017, and for tax years 2018 through 2020. Management does not believe that the resolution of these ongoing income tax examinations will have a material adverse impact on our financial position.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	12 Months Ended
SHARE-BASED COMPENSATION	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION	SHARE-BASED COMPENSATION The following table presents share-based compensation expense (benefit) and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost 2023 2022 2021 Awards issued pursuant to LTIP: Stock option awards (a) $ (3,850) $ 86,307 $ 87,697 $ 6,659 Performance stock units (a) (12,757) 10,220 8,675 6,443 Restricted share units 33,809 63,458 1,120 57,546 Other 30,724 — 804 46,937 $ 47,926 $ 159,985 $ 98,296 $ 117,585 (a) The benefit for the year ended December 31, 2023 includes credits due to the modification of awards to certain former executive officers and other forfeitures. Long Term Incentive Plan Pursuant to the Altice USA 2017 Long Term Incentive Plan, as amended (the "2017 LTIP"), we may grant awards of options, restricted shares, restricted share units, stock appreciation rights, performance stock, performance stock units and other awards. The maximum aggregate number of shares that may be issued for all purposes under the Plan is 89,879,291. Awards may be granted to our officers, employees and consultants or any of our affiliates. The 2017 LTIP is administered by Altice USA's Board of Directors (the "Board"), subject to the provision of the stockholders' agreement. The Board has delegated its authority to our Compensation Committee. The Compensation Committee has the full power and authority to, among other things, select eligible participants, to grant awards in accordance with the 2017 LTIP, to determine the number of shares subject to each award or the cash amount payable in connection with an award and determine the terms and conditions of each award. Stock Option Awards Options outstanding under the 2017 LTIP Plan either (i) cliff vest on the third anniversary of the date of grant, (ii) vest over 3 years in annual increments of 33-1/3%, or (iii) vest over 4 years, where 50% vest on the second anniversary, 25% on the third anniversary and 25% on the fourth anniversary of the date of grant. The option awards generally are subject to continued employment with the Company, and expire 10 years from the date of grant. Performance based option awards vest upon achievement of performance criteria. The following table summarizes activity related to stock options granted to our employees: Shares Under Option Weighted Average Weighted Average Remaining Time Aggregate Intrinsic Balance at December 31, 2020 37,062,146 $ 25.52 8.69 $ 457,608 Granted 18,192,257 16.87 Exercised (1,368,156) 17.47 Forfeited and Cancelled (2,887,431) 28.02 Balance at December 31, 2021 50,998,816 22.51 8.29 6,801 Granted 7,888,472 9.30 Forfeited and Cancelled (7,811,613) 23.84 Balance at December 31, 2022 51,075,675 $ 20.27 7.73 $ 184 Granted 640 4.69 Forfeited (3,525,176) 21.94 Exchanged and Canceled (b) (24,015,508) 20.72 Balance at December 31, 2023 23,535,631 $ 19.55 5.98 $ — Options exercisable at December 31, 2023 17,931,371 $ 22.76 5.17 $ — (a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of Altice USA's Class A common stock at the respective date. (b) Options exchanged and canceled in connection with the Company's stock option exchange program discussed below. As of December 31, 2023, the total unrecognized compensation cost related to stock options is expected to be recognized over a weighted-average period of approximately 2.65 years. We calculate the fair value of each option award on the date of grant using the Black-Scholes valuation model. Our computation of expected life was determined based on the simplified method (the average of the vesting period and option term) due to our lack of recent historical data for similar awards. The interest rate for periods within the contractual life of the stock option was based on interest yields for U.S. Treasury instruments in effect at the time of grant. Our computation of expected volatility was based on historical volatility of the Altice USA common stock and the expected volatility of comparable publicly-traded companies who granted options that had similar expected lives. The weighted-average fair values of stock option awards granted during the years ended December 31, 2023, 2022 and 2021 were $2.42, $3.76 and $6.42, respectively. The following weighted-average assumptions were used to calculate these fair values: Years Ended December 31, 2023 2022 2021 Risk-free interest rate 3.53% 3.42% 1.36% Expected life (in years) 5.71 6.24 6.02 Dividend yield —% —% —% Volatility 50.10% 41.79% 35.80% In January 2023, the Company commenced a stock option exchange program (the "Exchange Offer") pursuant to which eligible employees were provided the opportunity to exchange eligible stock options for a number of restricted stock units (“RSU”) and deferred cash-denominated awards (“DCA”) at the exchange ratio of one RSU and $10 of DCAs for every seven eligible options tendered. In connection with the Exchange Offer, the Company canceled 24,015,508 options and granted 3,430,433 restricted stock units and $34,309 of DCAs awards. The exchange of these options was accounted for as a modification of share-based compensation awards. Accordingly, the Company will recognize the unamortized compensation cost related to the canceled options of approximately $33,475, as well as the incremental compensation cost associated with the replacement awards of $34,000 over their two year vesting term. Performance Stock Units Certain of our employees were granted performance stock units ("PSUs"). Each PSU gives the employee the right to receive one share of Altice USA class A common stock, upon achievement of a specified stock price hurdle. The PSUs will be forfeited if the applicable performance measure is not achieved prior to January 29, 2026 or if the employee does not continue to provide services to the Company through the achievement date of the applicable performance measure. The following table summarizes activity related to PSUs granted to our employees: Number of Units Balance at December 31, 2020 7,315,360 Granted 160,647 Forfeited (1,114,113) Balance at December 31, 2021 6,361,894 Forfeited (1,182,535) Balance at December 31, 2022 5,179,359 Forfeited (1,411,606) Balance at December 31, 2023 3,767,753 The PSUs have a weighted average grant date fair value of $5.52 per unit. The total unrecognized compensation cost related to outstanding PSUs is expected to be recognized over a weighted-average period of approximately 2.1 years. Restricted Share Units We granted RSUs to certain employees pursuant to the 2017 LTIP. These awards vest either over over three years in 33-1/3% annual increments or 4 years, where 50% vest on the second anniversary, 25% on the third anniversary and 25% on the fourth anniversary of the date of grant. The following table summarizes activity related to RSUs granted to Company employees: Number of Units Balance at December 31, 2020 — Granted 6,621,639 Forfeited (3,802) Balance at December 31, 2021 6,617,837 Granted 3,597,775 Vested (2,141,449) Forfeited (578,775) Balance at December 31, 2022 7,495,388 Granted (including 3,430,433 in connection with Exchange Offer) (a) 19,975,943 Vested (1,913,348) Forfeited (3,064,095) Balance at December 31, 2023 22,493,888 (a) During 2023, the Company granted 16,545,510 RSUs to certain employees and directors pursuant to the 2017 LTIP with an aggregate fair value of $53,510 ($3.23 per share) which are being expensed over the vesting period. Most of these awards vest over three years in 33-1/3 annual increments. Lightpath Plan Awards In the third quarter of 2021, Lightpath Management Incentive Aggregator LLC ("LMIA") established a Management Incentive Plan (the "Lightpath Plan") for the benefit of employees of Lightpath by issuing equity interests in LMIA which holds an equivalent number of equity interests in Lightpath Holdings LLC (“Holdings”), the parent of Lightpath. These equity interests allow employees to participate in the long-term growth of Lightpath. The Lightpath Plan provides for an aggregate of 650,000 Class A-1 management incentive units and 350,000 Class A-2 management incentive units for issuance. As of December 31, 2023, 536,140 Class A-1 management incentive units and 273,538 Class A-2 management incentive units ("Award Units") granted to certain employees of Lightpath were outstanding. Vested units will be redeemed upon a partial exit, a change in control or the completion of an initial public offering, as defined in the Holdings LLC agreement. The grant date fair value of the Award Units outstanding aggregated $32,687 and will be expensed in the period in which a partial exit or a liquidity event is consummated.

AFFILIATE AND RELATED PARTY TRA

AFFILIATE AND RELATED PARTY TRANSACTIONS	12 Months Ended
AFFILIATE AND RELATED PARTY TRANSACTIONS	Dec. 31, 2023
Related Party Transactions [Abstract]
AFFILIATE AND RELATED PARTY TRANSACTIONS	AFFILIATE AND RELATED PARTY TRANSACTIONS Affiliate and Related Party Transactions Altice USA is controlled by Patrick Drahi through Next Alt who also controls Altice Europe and other entities. As the transactions discussed below were conducted between entities under common control by Mr. Drahi, amounts charged for certain services may not have represented amounts that might have been received or incurred if the transactions were based upon arm's length negotiations. The following table summarizes the revenue and expenses related to services provided to or received from affiliates and related parties: Years Ended December 31, 2023 2022 2021 Revenue $ 1,471 $ 2,368 $ 13,238 Operating expenses: Programming and other direct costs $ (13,794) $ (14,321) $ (17,167) Other operating expenses, net (57,063) (12,210) (11,989) Operating expenses, net (70,857) (26,531) (29,156) Other credits — 48 — Net charges $ (69,386) $ (24,115) $ (15,918) Capital Expenditures $ 122,384 $ 91,382 $ 54,163 Revenue We recognize revenue primarily from the sale of advertising to a subsidiary of Altice Europe and in 2021 we also recognized revenue from a foundation controlled by Mr. Drahi. Programming and other direct costs Programming and other direct costs include costs incurred for advertising services provided by Teads S.A., a subsidiary of Altice Europe. Other operating expenses, net Other operating expenses primarily include charges for services provided by certain subsidiaries of Altice Europe and other related parties, including costs for customer care services in 2023. Capital Expenditures Capital expenditures primarily include costs for equipment purchased and software development services provided by subsidiaries of Altice Europe. Aggregate amounts that were due from and due to affiliates and related parties are summarized below: December 31, 2023 2022 Due from: Altice Europe $ 137 $ 529 Other affiliates and related parties 270 43 $ 407 $ 572 Due to: Altice Europe $ 46,307 $ 19,211 Other affiliates and related parties 25,216 1,646 $ 71,523 $ 20,857 Amounts due from affiliates presented in the table above represent amounts due for services provided to the respective related party. Amounts due to affiliates presented in the table above and included in other current liabilities in the accompanying balance sheets relate to the purchase of equipment, customer care services, and advertising services, as well as reimbursement for payments made on our behalf. CSC Holdings CSC Holdings made cash equity distribution payments to and received cash contributions from its parent. CSC Holdings also recorded net non-cash equity contributions (distributions) which represent the non-cash settlement of intercompany balances with Altice USA. Non-cash equity contributions (distributions) include the settlement of amounts due to/due from Altice USA pursuant to a tax sharing agreement between the entities. See summary below:

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	12 Months Ended
COMMITMENTS AND CONTINGENCIES	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Commitments Future cash payments and commitments required under arrangements pursuant to contracts entered into by us in the normal course of business as of December 31, 2023, are as follows: Payments Due by Period Total Year 1 Years 2-3 Years 4-5 More than Off balance sheet arrangements: Purchase obligations (a) $ 5,809,702 $ 2,708,555 $ 2,805,204 $ 288,157 $ 7,786 Guarantees (b) 75,840 75,840 — — — Letters of credit (c) 133,512 1,485 1,310 — 130,717 Total $ 6,019,054 $ 2,785,880 $ 2,806,514 $ 288,157 $ 138,503 (a) Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services, including contracts to acquire handsets and other equipment. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2023, multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2023. (b) Includes franchise and performance surety bonds primarily for our cable television systems. (c) Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance. The table above does not include obligations for payments required to be made under multi-year franchise agreements based on a percentage of revenues generated from video service per year. Many of our franchise agreements and utility pole leases require us to remove its cable wires and other equipment upon termination of the respective agreements. We have concluded that the fair value of these asset retirement obligations cannot be reasonably estimated since the range of potential settlement dates is not determinable. The table above does not include obligations for rent related to utility poles used in our operations. Our pole rental agreements are for varying terms, and management anticipates renewals as they expire. Rent expense incurred for pole rental attachments for the years ended December 31, 2023, 2022 and 2021 was $40,868, $40,277, and $37,545, respectively. Legal Matters On December 7, 2023, Warner Records Inc., Sony Music Publishing (US) LLC and a number of other purported copyright holders (collectively, the “Warner Plaintiffs”) filed a complaint in the U.S. District Court for the Eastern District of Texas (the “Warner Matter”), alleging that certain of our Internet subscribers directly infringed over 10,700 of the Warner Plaintiffs’ copyrighted works. The Warner Plaintiffs seek to hold us liable for claims of contributory infringement of copyright and vicarious copyright infringement. The Warner Plaintiffs also claim that our alleged secondary infringement was willful and seek substantial statutory damages. The Warner Matter follows a similar complaint filed in December 2022 by BMG Rights Management (US) LLC, UMG Recordings, Inc., Capitol Records, LLC, Concord Music Group, Inc., and Concord Bicycle Assets, LLC (collectively, the “BMG Plaintiffs”) in the U.S. District Court for the Eastern District of Texas (the “BMG Matter”) alleging that certain of our Internet subscribers directly infringed over 8,100 of the BMG Plaintiffs’ copyrighted works. The BMG Plaintiffs seek to hold us liable for claims of contributory infringement of copyright and vicarious copyright infringement. The BMG Plaintiffs claim that our alleged secondary infringement was willful and seek substantial statutory damages. Trial in this matter is scheduled for September 2024. We intend to and are vigorously defending against the claims in the Warner Matter and the BMG Matter. In addition to contesting the claims of liability, we have an affirmative defense under the Digital Millennium Copyright Act that, if successful, would preclude or limit monetary damages against us in connection with some or all of the Warner Plaintiffs’ and BMG Plaintiffs’ asserted claims. There can be no assurance as to the outcome of these litigations. We may incur significant costs in defending these actions, and if we need to take measures to reduce our exposure to these risks or are required to pay damages in relation to such claims or choose to settle such claims, our business, reputation, financial condition and results of operations could be materially adversely affected. We also receive notices from third parties, and in some cases we are named as a defendant in lawsuits, claiming infringement of various patents or copyrights relating to various aspects of our businesses. In certain of these cases other industry participants are also defendants, and in certain of these cases we expect that some or all potential liability would be the responsibility of our vendors pursuant to applicable contractual indemnification provisions. In the event that we are found to infringe on any patent or other intellectual property rights, we may be subject to substantial damages or an injunction that could require us or our vendors to modify certain products and services we offer to our subscribers, as well as enter into royalty or license agreements with respect to the patents at issue. We are also party to various other lawsuits, disputes and investigations arising in the ordinary course of our business, some of which may involve claims for substantial damages, fines or penalties. Although the outcome of these matters cannot be predicted and the impact of the final resolution of these matters on our results of operations in a particular subsequent reporting period is not known, management does not believe that the resolution of these matters, individually, will have a material adverse effect on our operations or financial position or our ability to meet our financial obligations as they become due, but they could be material to our consolidated results of operations or cash flows for any one period.

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS In January 2024, CSC Holdings issued $2,050,000 in aggregate principal amount of senior guaranteed notes due 2029 ("CSC Holdings 2029 Guaranteed Notes"). These notes bear interest at a rate of 11.750% and will mature on January 31, 2029. The proceeds from the sale of these notes were used to repay certain indebtedness including (i) the outstanding principal balance of the Term Loan B, (ii) the outstanding principal balance of the Incremental Term Loan B-3, and (iii) pay the fees, costs and expenses associated with these transactions. Also in January 2024, we notified the holders of our 5.250% Senior Notes due 2024 and 5.250% Series B Senior Notes due 2024 that we will be redeeming these notes in full (in accordance with the terms of the indenture). We expect to drawdown $750,000 under our Revolving Credit Facility to repay these notes on February 28, 2024. In connection with this refinancing, the carrying value of outstanding notes of $742,746 as of December 31, 2023 has been classified as long-term debt.

Pay vs Performance Disclosure

Pay vs Performance Disclosure - USD ($) $ in Thousands	12 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Pay vs Performance Disclosure
Net income attributable to CSC Holdings, LLC sole member	$ 53,198	$ 194,563	$ 990,311

Insider Trading Arrangements

Insider Trading Arrangements	12 Months Ended
Insider Trading Arrangements	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

SUMMARY OF SIGNIFICANT ACCOUN_2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2023
Entity Information [Line Items]
Revenue Recognition	Revenue Recognition Residential Services We derive revenue through monthly charges to residential customers of our broadband, video, and telephony services, including installation services. In addition, we derive revenue from digital video recorder ("DVR"), video-on-demand ("VOD"), pay-per-view, and home shopping commissions which are reflected in "Residential video" revenues. We recognize broadband, video, and telephony revenues as the services are provided to a customer on a monthly basis. Each service is accounted for as a distinct performance obligation. Revenue from the sale of bundled services at a discounted rate is allocated to each product based on the standalone selling price of each performance obligation within the bundled offer. The standalone selling price requires judgment and is typically determined based on the current prices at which the separate services are sold by us. Installation revenue for our residential services is deferred and recognized over the benefit period, which is generally less than one year. The estimated benefit period takes into account both quantitative and qualitative factors including the significance of average installation fees to total recurring revenue per customer. Also, we have mobile services providing data, talk and text to consumers in or near our service areas. Customers are billed monthly for access to and usage of our mobile services. We recognize mobile service revenue ratably over the monthly service period as the services are provided to the customers. We are assessed non-income related taxes by governmental authorities, including franchising authorities (generally under multi-year agreements), and collects such taxes from its customers. In instances where the tax is being assessed directly on us, amounts paid to the governmental authorities are recorded as programming and other direct costs and amounts received from the customers are recorded as revenue. For the years ended December 31, 2023, 2022 and 2021, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $219,988, $232,795 and $257,364, respectively. Business and Wholesale Revenue We derive revenue from the sale of products and services to both large enterprise and small and medium-sized business ("SMB") customers, including broadband, telephony, networking, and video services reflected in "Business services and wholesale" revenues. Our business services also include Ethernet, data transport, and IP-based virtual private networks. We provide managed services to businesses, including hosted telephony services (cloud based SIP-based private branch exchange), managed WiFi, managed desktop and server backup and managed collaboration services including audio and web conferencing. We also offer fiber-to-the-tower services to wireless carriers for cell tower backhaul, which enables wireline communications service providers to connect to customers that their own networks do not reach. We recognize revenues for these services as the services are provided to a customer on a monthly basis. Substantially all of our SMB customers are billed monthly and large enterprise customers are billed in accordance with the terms of their contracts which is typically on a monthly basis. Contracts with large enterprise customers typically range from three News and Advertising Revenue News and advertising revenue is primarily derived from the sale of (i) advertising inventory available on the programming carried on our cable television systems, as well as other systems (linear revenue), (ii) digital advertising, (iii) data analytics, and (iv) affiliation fees for news programming. As part of the agreements under which we acquire video programming, we typically receive an allocation of scheduled advertising time during such programming into which our cable systems can insert commercials. In several of the markets in which we operate, we have entered into agreements commonly referred to as interconnects with other cable operators to jointly sell local advertising. In some of these markets, we represent the advertising sales efforts of other cable operators; in other markets, other cable operators represent us. We also offer customers the opportunity to advertise on digital platforms. Advertising revenues are recognized when the advertising is distributed. For arrangements in which we control the sale of advertising and act as the principal to the transaction, we recognize revenue earned from the advertising customer on a gross basis and the amount remitted to the distributor as an operating expense. For arrangements in which we do not control the sale of advertising and act as an agent to the transaction, we recognize revenue net of any fee remitted to the distributor. Revenue earned from the data-driven, audience-based advertising solutions using advanced analytics tools is recognized when services are provided. Affiliation fee revenue derived by our news business is recognized as the programming services are provided. Other Revenue Other revenue includes r evenue derived from the sale of mobile devices which is recognized upon delivery and acceptance of the equipment by the customer. Revenues derived from other sources are recognized when services are provided or events occur. Customer Contract Costs Incremental costs incurred in obtaining a contract with a customer are deferred and recorded as an asset if the period of benefit is expected to be greater than one year. Sales commissions for enterprise customers are deferred and amortized over the average contract term. As the amortization period for sales commission expenses related to residential and SMB customers is less than one year, we utilize the practical expedient and are recognizing the costs when incurred. The costs of fulfilling a contract with a customer are deferred and recorded as an asset if they generate or enhance resources for us that will be used in satisfying future performance obligations and are expected to be recovered. Installation costs related to residential and SMB customers that are not capitalized as part of the initial deployment of new customer premise equipment are expensed as incurred pursuant to industry-specific guidance. Deferred enterprise sales commission costs are included in other current and noncurrent assets in the consolidated balance sheet and totaled $18,109 and $17,511 as of December 31, 2023 and 2022, respectively. A significant portion of our revenue is derived from residential and SMB customer contracts which are month-to month. As such, the amount of revenue related to unsatisfied performance obligations is not necessarily indicative of the future revenue to be recognized from our existing customer base. Contracts with enterprise customers generally range from three years to five years, and services may only be terminated in accordance with the contractual terms. Multiple-Element Transactions In the normal course of business, we may enter into multiple-element transactions where we are simultaneously both a customer and a vendor with the same counterparty or in which we purchase multiple products and/or services, or settle outstanding items contemporaneously with the purchase of a product or service, from a single counterparty. Our policy for accounting for each transaction negotiated contemporaneously is to record each deliverable of the transaction based on our best estimate of selling price in a manner consistent with that used to determine the price to sell each deliverable on a standalone basis. In determining the value of the respective deliverable, we utilize historical transactions, quoted market prices (as available), or comparable transactions.
Technical and Operating Expenses and Programming Costs	Programming and Other Direct Costs Costs of revenue related to delivery of services and goods are classified as "programming and other direct costs" in the accompanying consolidated statements of operations. Programming Costs Programming expenses related to our video service represent fees paid to programming distributors to license the programming distributed to video customers. This programming is acquired generally under multi-year distribution agreements, with rates usually based on the number of customers that receive the programming. If there are periods when an existing distribution agreement has expired and the parties have not finalized negotiations of either a renewal of that agreement or a new agreement for certain periods of time, we continue to carry and pay for these services until execution of definitive replacement agreements or renewals. The amount of programming expense recorded during the interim period is based on our estimate of the ultimate contractual agreement expected to be reached, which is based on several factors, including previous contractual rates, customary rate increases and the current status of negotiations. Such estimates are adjusted as negotiations progress until new programming terms are finalized. In addition, we receive, or may receive, incentives from programming distributors for carriage of the distributors' programming. We generally recognize these incentives as a reduction of programming costs and are recorded in "programming and other direct costs", generally over the term of the distribution agreement.
Advertising Expenses	Advertising Expenses Advertising costs are charged to expense when incurred and are reflected in "other operating expenses" in the accompanying consolidated statements of operations. Advertising costs amounted to $253,777, $299,590 and $274,639 for the years ended December 31, 2023, 2022 and 2021, respectively.
Share-based Compensation	Share-Based Compensation Share-based compensation expense which primarily relates to awards of stock options, restricted shares, and performance stock units, is based on the fair value of share-based payment awards at the date of grant. We recognize share-based compensation expense over the requisite service period or when it is probable any related performance condition will be met. For awards with graded vesting, compensation cost is recognized on an accelerated method under the graded vesting method over the requisite service period. Share-based compensation expense related to awards that vest entirely at the end of the vesting period are expensed on a straight-line basis. We account for forfeitures as they occur.
Income Taxes	Income Taxes
Cash and Cash Equivalents	Cash and Cash Equivalents Our cash investments are placed with money market funds and financial institutions that are investment grade as rated by S&P Global Ratings and Moody's Investors Service. We select money market funds that predominantly invest in marketable, direct obligations issued or guaranteed by the United States government or its agencies, commercial paper, fully collateralized repurchase agreements, certificates of deposit, and time deposits. We consider the balance of our investment in funds that substantially hold securities that mature within three months or less from the date the fund purchases these securities to be cash equivalents. The carrying amount of cash and cash equivalents either approximates fair value due to the short-term maturity of these instruments or are at fair value.
Accounts Receivable	Accounts Receivable
Investments	Investment Securities
Long-Lived Assets and Amortizable Intangible Assets	Long-Lived Assets and Amortizable Intangible Assets
Internal Use Software	We capitalize certain internal and external costs incurred to acquire or develop internal-use software. Capitalized software costs are amortized over the estimated useful life of the software and reported in depreciation and amortization.
Amortizable Intangible Assets	Customer relationships, trade names and other intangibles established in connection with acquisitions that are finite-lived are amortized in a manner that reflects the pattern in which the projected net cash inflows are expected to occur, such as the sum of the years' digits method, or when such pattern does not exist, using the straight-line method over their respective estimated useful lives.
Asset Impairment	We review our long-lived assets (property, plant and equipment, and intangible assets subject to amortization) for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be recoverable. If the sum of the expected cash flows, undiscounted and without interest, is less than the carrying amount of the asset, an impairment loss is recognized as the amount by which the carrying amount of the asset exceeds its fair value.
Goodwill and Indefinite-Lived Intangible Assets	Goodwill and Indefinite-Lived Intangible Assets Goodwill and the value of indefinite-lived cable franchises acquired in business combinations are not amortized. Rather, such assets are tested for impairment annually or whenever events or changes in circumstances indicate that it is more likely than not that the assets may be impaired. The assessment of recoverability may first consider qualitative factors to determine whether the existence of events or circumstances leads to a determination that it is more likely than not that the fair value of a reporting unit or the indefinite-lived cable franchise right is less than its carrying amount. These qualitative factors include macroeconomic conditions such as changes in interest rates, industry and market considerations, recent and projected financial performance of the reporting units, as well as other factors. A quantitative test is performed if we conclude that it is more likely than not that the fair value of a reporting unit or an indefinite-lived cable franchise right is less than its carrying amount or if a qualitative assessment is not performed. In 2023, we performed a quantitative assessment for our goodwill recoverability test and a qualitative assessment for our indefinite-lived cable franchise rights recoverability test. See Note 10 for a discussion of the results of our annual impairment tests. Goodwill Goodwill resulted from business combinations and represents the excess amount of the consideration paid over the identifiable assets and liabilities recorded in the acquisition. We test goodwill for impairment at the reporting unit level: (i) Telecommunications and (ii) News and Advertising. The quantitative test for goodwill identifies potential impairment by comparing the fair value of the reporting unit with its carrying amount. If the carrying amount of the reporting unit exceeds its fair value, an impairment loss is recognized in an amount equal to that excess. We estimate the fair value of our reporting units by considering both (i) a discounted cash flow method, which is based on the present value of projected cash flows over a discrete projection period and a terminal value, which is based on the expected normalized cash flows of the reporting units following the discrete projection period, and (ii) a market approach, which includes the use of multiples of publicly-traded companies whose services are comparable to ours. Significant judgments in estimating the fair value of our reporting units include cash flow projections and the selection of the discount rate. The estimates and assumptions utilized in estimating the fair value of our reporting units could have a significant impact on whether an impairment charge is recognized and also the magnitude of any such charge. Fair value estimates are made at a specific point in time, based on relevant information. These estimates are subjective in nature and involve uncertainties and matters of significant judgments. Changes in assumptions could significantly affect the estimates. Indefinite-lived Cable Franchise Rights Our indefinite-lived cable franchise rights reflect the value of agreements we have with state and local governments that allow us to construct and operate a cable business within a specified geographic area and allow us to solicit and service potential customers in the service areas defined by the franchise rights currently held by us. We have concluded that our cable franchise rights have an indefinite useful life since there are no legal, regulatory, contractual, competitive, economic or other factors that limit the period over which these rights will contribute to our cash flows. For impairment testing purposes, we have concluded that our cable franchise rights are a single unit of account.
Deferred Financing Costs	Deferred Financing Costs Deferred financing costs, which are presented as a reduction of debt, are amortized to interest expense using the effective interest method over the terms of the related debt.
Derivative Financial Instruments	Derivative Financial Instruments
Commitments and Contingencies	Commitments and Contingencies Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when we believe it is probable that a liability has been incurred and the amount of the contingency can be reasonably estimated.
Foreign Currency	Foreign Currency
Common Stock and Membership Interests	Common Stock of Altice USA Each holder of our Class A common stock has one vote per share while holders of our Class B common stock have twenty-five votes per share. Class B shares can be converted to Class A common stock at anytime with a conversion ratio of one Class A common share for one Class B common share. The following table provides details of Altice USA's shares of common stock outstanding: Shares of Common Stock Outstanding Class A Class B Balance at December 31, 2021 270,320,798 184,333,342 Conversion of Class B common stock to Class A common stock 4,113 (4,113) Issuance of common shares in connection with the vesting of restricted stock units 1,506,186 — Treasury shares reissued 1,966 — Balance at December 31, 2022 271,833,063 184,329,229 Conversion of Class B common stock to Class A common stock 104,801 (104,801) Issuance of common shares in connection with the vesting of restricted stock units 1,357,983 — Retirement of Class A common shares due to forfeiture (1,522,965) — Treasury shares reissued 96 — Balance at December 31, 2023 271,772,978 184,224,428 CSC Holdings Membership Interests As of December 31, 2023 and 2022, CSC Holdings had 100 membership units issued and outstanding, which are all indirectly owned by Altice USA.
Dividends and Distributions	Dividends and Distributions Altice USA Altice USA may pay dividends on its capital stock only from net profits and surplus as determined under Delaware law. If dividends are paid on the Altice USA common stock, holders of the Altice USA Class A common stock and Altice USA Class B common stock are entitled to receive dividends, and other distributions in cash, stock or property, equally on a per share basis, except that stock dividends with respect to Altice USA Class A common stock may be paid only with shares of Altice USA Class A common stock and stock dividends with respect to Altice USA Class B common stock may be paid only with shares of Altice USA Class B common stock. Our indentures restrict the amount of dividends and distributions in respect of any equity interest that can be made. During 2023, 2022 and 2021, there were no dividends paid to shareholders by Altice USA. CSC Holdings CSC Holdings may make distributions on its membership interests only if sufficient funds exist as determined under Delaware law. See Note 16 for a discussion of equity distributions that CSC Holdings made to its parent.
Concentrations of Credit Risk	Concentrations of Credit Risk Financial instruments that may potentially subject us to a concentration of credit risk consist primarily of cash and cash equivalents and trade account receivables. We monitor the financial institutions and money market funds where it invests its cash and cash equivalents with diversification among counterparties to mitigate exposure to any single financial institution. Our emphasis is primarily on safety of principal and liquidity and secondarily on maximizing the yield on its investments. Management believes that no significant concentration of credit risk exists with respect to its cash and cash equivalents because of its assessment of the creditworthiness and financial viability of the respective financial institutions. We did not have a single customer that represented 10% or more of our consolidated revenues for the years ended December 31, 2023, 2022 and 2021 or 10% or more of our consolidated net trade receivables at December 31, 2023, and 2022, respectively.
Use of Estimates in Preparation of Financial Statements	Use of Estimates in Preparation of Financial Statements The preparation of financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. See Note 13 for a discussion of fair value estimates.
Reclassifications	Reclassifications Certain reclassifications have been made to the 2022 and 2021 amounts to conform to the 2023 presentation.

SUMMARY OF SIGNIFICANT ACCOUN_3

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)	Dec. 31, 2023
Accounting Policies [Abstract]
Disaggregation of Revenue	The following table presents the composition of revenue: Years Ended December 31, 2023 2022 2021 Residential: Broadband $ 3,824,472 $ 3,930,667 $ 3,925,089 Video 3,072,011 3,281,306 3,526,205 Telephony 300,198 332,406 404,813 Mobile (a) 77,012 61,832 51,281 Residential revenue 7,273,693 7,606,211 7,907,388 Business services and wholesale (a) 1,467,149 1,474,269 1,586,423 News and advertising 447,742 520,293 550,667 Other 48,480 46,886 46,371 Total revenue $ 9,237,064 $ 9,647,659 $ 10,090,849 (a) Beginning in the second quarter of 2023, mobile service revenue previously included in mobile revenue is now separately reported in residential revenue and business services revenue. In addition, mobile equipment revenue previously included in mobile revenue is now included in other revenue. Prior period amounts have been revised to conform with this presentation.
Schedule of Stock by Class	The following table provides details of Altice USA's shares of common stock outstanding: Shares of Common Stock Outstanding Class A Class B Balance at December 31, 2021 270,320,798 184,333,342 Conversion of Class B common stock to Class A common stock 4,113 (4,113) Issuance of common shares in connection with the vesting of restricted stock units 1,506,186 — Treasury shares reissued 1,966 — Balance at December 31, 2022 271,833,063 184,329,229 Conversion of Class B common stock to Class A common stock 104,801 (104,801) Issuance of common shares in connection with the vesting of restricted stock units 1,357,983 — Retirement of Class A common shares due to forfeiture (1,522,965) — Treasury shares reissued 96 — Balance at December 31, 2023 271,772,978 184,224,428

CHANGE IN ACCOUNTING POLICIES (

CHANGE IN ACCOUNTING POLICIES (Tables)	12 Months Ended
CHANGE IN ACCOUNTING POLICIES (Tables)	Dec. 31, 2023
Accounting Changes and Error Corrections [Abstract]
Schedule of Weighted Average Number of Shares [Table Text Block]	The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Altice USA stockholders: Years Ended December 31, 2023 2022 2021 (in thousands) Basic weighted average shares outstanding 454,723 453,244 458,311 Effect of dilution: Stock options — — 3,972 Restricted stock 74 38 11 Restricted stock units — — 1 Deferred cash-denominated awards (Note 15) 237 — — Diluted weighted average shares outstanding 455,034 453,282 462,295 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 46,084 57,961 15,856 Share-based compensation awards whose performance metrics have not been achieved 20,831 7,309 8,557

Earnings Per Share (Tables)

Earnings Per Share (Tables)	12 Months Ended
Earnings Per Share (Tables)	Dec. 31, 2023
Earnings Per Share [Abstract]
Schedule of Weighted Average Number of Shares [Table Text Block]	The following table presents a reconciliation of weighted average shares used in the calculations of the basic and diluted net income per share attributable to Altice USA stockholders: Years Ended December 31, 2023 2022 2021 (in thousands) Basic weighted average shares outstanding 454,723 453,244 458,311 Effect of dilution: Stock options — — 3,972 Restricted stock 74 38 11 Restricted stock units — — 1 Deferred cash-denominated awards (Note 15) 237 — — Diluted weighted average shares outstanding 455,034 453,282 462,295 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 46,084 57,961 15,856 Share-based compensation awards whose performance metrics have not been achieved 20,831 7,309 8,557

ALLOWANCE FOR DOUBTFUL ACCOUN_2

ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)	12 Months Ended
ALLOWANCE FOR DOUBTFUL ACCOUNTS (Tables)	Dec. 31, 2023
Receivables [Abstract]
Allowance for Credit Losses on Financing Receivables	Activity related to our allowance for doubtful accounts is presented below: Balance at Beginning of Period Provision for Bad Debt Deductions/ Write-Offs and Other Charges Balance at End of Period Year Ended December 31, 2023 Allowance for doubtful accounts $ 20,767 $ 84,461 $ (83,313) $ 21,915 Year Ended December 31, 2022 Allowance for doubtful accounts $ 27,931 $ 88,159 $ (95,323) $ 20,767 Year Ended December 31, 2021 Allowance for doubtful accounts $ 25,198 $ 68,809 $ (66,076) $ 27,931

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	12 Months Ended
SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	Dec. 31, 2023
Supplemental Cash Flow Elements [Abstract]
Non-Cash Investing and Financing Activities and Other Supplemental Data	non-cash investing and financing activities and other supplemental data were as follows: Years Ended December 31, 2023 2022 2021 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 317,000 $ 496,135 $ 335,680 Notes payable for the purchase of equipment and other assets 213,325 132,452 89,898 Right-of-use assets acquired in exchange for finance lease obligations 133,056 160,542 145,047 Payable relating to acquisition of noncontrolling interest 7,036 — — Other non-cash investing and financing transactions 249 1,117 500 CSC Holdings: Contributions from (distributions to) parent, net 8,183 7,015 (19,500) Supplemental Data: Altice USA: Cash interest paid, net of capitalized interest 1,582,646 1,247,747 1,178,088 Income taxes paid, net 200,295 253,962 263,589 CSC Holdings: Cash interest paid, net of capitalized interest 1,582,646 1,247,747 1,178,088 Income taxes paid, net 200,295 253,962 263,589

RESTRUCTURING AND OTHER EXPEN_2

RESTRUCTURING AND OTHER EXPENSE (Tables)	12 Months Ended
RESTRUCTURING AND OTHER EXPENSE (Tables)	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Restructuring Cost Activity	Years Ended December 31, 2023 2022 2021 Contractual payments for terminated employees $ 39,915 $ 4,002 $ 6,227 Facility realignment costs 2,368 5,652 2,551 Impairment of right-of-use operating lease assets 10,554 3,821 6,701 Remeasurement of contingent consideration related to an acquisition (6,345) — — Transaction costs related to certain transactions not related to our operations 5,180 4,310 1,697 Litigation settlement (a) — 112,500 — Goodwill impairment (b) 163,055 — — Restructuring, impairments and other operating items $ 214,727 $ 130,285 $ 17,176 (a) Represents the settlement of litigation in the fourth quarter of 2022, of which $65,000 was paid in 2022 and the balance of $47,500 is payable on or before June 30, 2024. (b) In connection with our annual recoverability assessment of goodwill, we recorded an impairment charge relating to our News and Advertising reporting unit for the year ended December 31, 2023. See Note 10 for additional information.

PROPERTY, PLANT AND EQUIPMENT (

PROPERTY, PLANT AND EQUIPMENT (Tables)	12 Months Ended
PROPERTY, PLANT AND EQUIPMENT (Tables)	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, plant and equipment (including equipment under finance leases) consist of the following assets, which are depreciated or amortized on a straight-line basis over the estimated useful lives shown below: December 31, Estimated 2023 2022 Customer premise equipment $ 2,242,175 $ 2,134,561 3 to 5 years Headends and related equipment 2,506,665 2,493,208 5 to 25 years Infrastructure 8,727,425 7,711,815 5 to 25 years Equipment and software 1,436,010 1,434,742 3 to 10 years Construction in progress (including materials and supplies) 353,572 499,598 Furniture and fixtures 80,585 81,518 5 to 8 years Transportation equipment 123,193 145,413 5 to 10 years Buildings and building improvements 574,162 550,884 10 to 40 years Leasehold improvements 187,608 185,645 Term of lease Land 48,804 48,793 16,280,199 15,286,177 Less accumulated depreciation and amortization (8,162,442) (7,785,397) $ 8,117,757 $ 7,500,780

LEASES (Tables)

LEASES (Tables)	12 Months Ended
LEASES (Tables)	Dec. 31, 2023
Leases [Abstract]
Lessee, Topic 842, Other Lease Information	Other information related to our leases is presented below: As of December 31, 2023 2022 Right-of-use assets acquired in exchange for operating lease obligations $ 60,108 $ 74,063 Cash Paid For Amounts Included In Measurement of Liabilities: Operating cash flows from finance leases 14,912 11,332 Operating cash flows from operating leases 63,737 65,879 Weighted Average Remaining Lease Term: Operating leases 8.2 years 8.1 years Finance leases 2.2 years 2.0 years Weighted Average Discount Rate: Operating leases 5.70 % 5.63 % Finance leases 7.78 % 5.49 %
Finance Lease, Liability, Maturity	The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2024 $ 136,863 $ 58,367 2025 76,968 54,781 2026 26,475 50,883 2027 4,921 47,799 2028 3,743 38,055 Thereafter 809 146,237 Total future minimum lease payments, undiscounted 249,779 396,122 Less: Imputed interest (21,423) (83,510) Present value of future minimum lease payments $ 228,356 $ 312,612
Lessee, Operating Lease, Liability, Maturity	The minimum future annual payments under non-cancellable leases during the next five years and thereafter, at rates now in force, are as follows: Finance leases Operating leases 2024 $ 136,863 $ 58,367 2025 76,968 54,781 2026 26,475 50,883 2027 4,921 47,799 2028 3,743 38,055 Thereafter 809 146,237 Total future minimum lease payments, undiscounted 249,779 396,122 Less: Imputed interest (21,423) (83,510) Present value of future minimum lease payments $ 228,356 $ 312,612
Lease, Cost	The following provides details of our lease expense: Years Ended December 31, 2023 2022 Operating lease expense, net $ 62,157 $ 58,124 Finance lease expense: Amortization of assets 95,449 86,455 Interest on lease liabilities 14,912 11,332 Total finance lease expense 110,361 97,787 $ 172,518 $ 155,911 Other information related to our leases is presented below: As of December 31, 2023 2022 Right-of-use assets acquired in exchange for operating lease obligations $ 60,108 $ 74,063 Cash Paid For Amounts Included In Measurement of Liabilities: Operating cash flows from finance leases 14,912 11,332 Operating cash flows from operating leases 63,737 65,879 Weighted Average Remaining Lease Term: Operating leases 8.2 years 8.1 years Finance leases 2.2 years 2.0 years Weighted Average Discount Rate: Operating leases 5.70 % 5.63 % Finance leases 7.78 % 5.49 %
Lesee, Operating Lease And Finance Lease, Liability	Balance sheet information related to our leases is presented below: Balance Sheet location December 31, 2023 2022 Operating leases: Right-of-use lease assets Right-of-use operating lease assets $ 255,545 $ 250,601 Right-of-use lease liability, current Other current liabilities 47,965 38,740 Right-of-use lease liability, long-term Right-of-use operating lease liability 264,647 260,237 Finance leases: Right-of-use lease assets Property, plant and equipment 326,427 332,217 Right-of-use lease liability, current Current portion of long-term debt 123,636 129,657 Right-of-use lease liability, long-term Long-term debt 104,720 114,938

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	12 Months Ended
INTANGIBLE ASSETS (Tables)	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to our acquired amortizable intangible assets: As of December 31, 2023 As of December 31, 2022 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,073,152 $ (4,824,140) $ 1,249,012 $ 6,123,586 $ (4,484,286) $ 1,639,300 3 to 18 years Trade names 1,010,300 (1,010,300) — 1,024,300 (1,018,212) 6,088 4 to 10 years Other amortizable intangibles 50,495 (40,172) 10,323 62,119 (47,176) 14,943 1 to 15 years $ 7,133,947 $ (5,874,612) $ 1,259,335 $ 7,210,005 $ (5,549,674) $ 1,660,331 During the third quarter of 2022, we reduced the gross carrying amount and accumulated amortization of our fully amortized Suddenlink trademark by approximately $56,783, as we rebranded our entire footprint under the Optimum trademark.
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense	The following table sets forth the estimated amortization expense on intangible assets for the periods presented: Estimated amortization expense Year Ending December 31, 2024 $309,717 Year Ending December 31, 2025 262,152 Year Ending December 31, 2026 217,182 Year Ending December 31, 2027 173,411 Year Ending December 31, 2028 130,122
Schedule of Goodwill	The carrying amount of indefinite-lived cable franchise rights and goodwill is presented below: Indefinite-lived Cable Franchise Rights Goodwill Balance as of December 31, 2021 $ 13,216,355 $ 8,205,863 Goodwill recorded in connection with acquisitions — 2,910 Balance as of December 31, 2022 13,216,355 8,208,773 Adjustment related to 2022 acquisition — (1,002) Goodwill impairment — (163,055) Balance as of December 31, 2023 $ 13,216,355 $ 8,044,716

DEBT (Tables)

DEBT (Tables)	12 Months Ended
DEBT (Tables)	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Extinguishment of Debt	The following table provides a summary of the gain (loss) on extinguishment of debt and the write-off of deferred financing costs recorded by us: For the Year Ended December 31, 2023 2022 2021 Settlement of collateralized debt (see Note 12) $ 4,393 $ — $ — Refinancing of CSC Holdings Term Loan B and Incremental Term Loan B-3 — (575) — Repayment of CSC Holdings 5.500% Senior Guaranteed Notes due 2026 — — (51,712)
Schedule of Maturities of Long-term Debt	The future principal payments under our various debt obligations outstanding as of December 31, 2023, including notes payable and supply chain financing, but excluding finance lease obligations (see Note 9), are as follows: Years Ending December 31, 2024 $ 1,001,242 2025 (a) 2,391,415 2026 567,223 2027 5,141,519 2028 (b) 5,371,850 Thereafter 10,425,000
Schedule of Debt	The following table provides details of our outstanding debt: Interest Rate at December 31, 2023 December 31, 2022 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: May 23, 2014 June 1, 2024 5.250% $ 750,000 $ 742,746 $ 750,000 $ 726,343 October 18, 2018 April 1, 2028 7.500% 4,118 4,114 4,118 4,113 November 27, 2018 April 1, 2028 7.500% 1,045,882 1,044,933 1,045,882 1,044,752 July 10 and October 7, 2019 January 15, 2030 5.750% 2,250,000 2,275,915 2,250,000 2,279,483 June 16 and August 17. 2020 December 1, 2030 4.625% 2,325,000 2,359,078 2,325,000 2,363,082 May 13, 2021 November 15, 2031 5.000% 500,000 498,525 500,000 498,375 6,875,000 6,925,311 6,875,000 6,916,148 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500% 1,310,000 1,307,709 1,310,000 1,307,091 January 29, 2018 February 1, 2028 5.375% 1,000,000 995,940 1,000,000 995,078 January 24, 2019 February 1, 2029 6.500% 1,750,000 1,748,098 1,750,000 1,747,795 June 16, 2020 December 1, 2030 4.125% 1,100,000 1,096,499 1,100,000 1,096,077 August 17, 2020 February 15, 2031 3.375% 1,000,000 997,556 1,000,000 997,258 May 13, 2021 November 15, 2031 4.500% 1,500,000 1,495,598 1,500,000 1,495,144 April 25, 2023 May 15, 2028 11.250% 1,000,000 994,072 — — 8,660,000 8,635,472 7,660,000 7,638,443 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility July 13, 2027 7.712% (b) 825,000 821,632 1,575,000 1,570,730 Term Loan B July 17, 2025 7.726% (c)(g) 1,520,483 1,518,530 1,535,842 1,532,644 Incremental Term Loan B-3 January 15, 2026 7.726% (d)(g) 521,744 520,988 527,014 525,883 Incremental Term Loan B-5 April 15, 2027 7.976% (e)(g) 2,887,500 2,876,131 2,917,500 2,902,921 Incremental Term Loan B-6 January 15, 2028 9.862% (f) 1,986,928 1,948,503 2,001,942 1,955,839 7,741,655 7,685,784 8,557,298 8,488,017 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625% 415,000 409,136 415,000 408,090 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875% 450,000 444,410 450,000 443,046 Lightpath Term Loan November 30, 2027 8.726% 582,000 571,898 588,000 575,478 Lightpath Revolving Credit Facility — — — — 1,447,000 1,425,444 1,453,000 1,426,614 Collateralized indebtedness (see Note 12) — — 1,759,017 1,746,281 Finance lease obligations (see Note 9) 228,356 228,356 244,595 244,595 Notes payable and supply chain financing 174,594 174,594 127,635 127,635 25,126,605 25,074,961 26,676,545 26,587,733 Less: current portion of credit facility debt (61,177) (61,177) (71,643) (71,643) Less: current portion of collateralized indebtedness (h) — — (1,759,017) (1,746,281) Less: current portion of finance lease obligations (123,636) (123,636) (129,657) (129,657) Less: current portion of notes payable and supply chain financing (174,594) (174,594) (127,496) (127,496) (359,407) (359,407) (2,087,813) (2,075,077) Long-term debt $ 24,767,198 $ 24,715,554 $ 24,588,732 $ 24,512,656 (a) The carrying amount is net of the unamortized deferred financing costs and/or discounts/premiums and with respect to certain notes, a fair value adjustment resulting from the Cequel and Cablevision acquisitions. (b) At December 31, 2023, $133,512 of the revolving credit facility was restricted for certain letters of credit issued on our behalf and $1,516,488 of the $2,475,000 facility was undrawn and available, subject to covenant limitations. The revolving credit facility bears interest at a rate of SOFR (plus a Term SOFR credit adjustment spread of 0.10%) plus 2.25% per annum. (c) Term Loan B requires quarterly installments of $3,840 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.25% per annum. (d) Incremental Term Loan B-3 requires quarterly installments of $1,318 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.25% per annum. (e) Incremental Term Loan B-5 requires quarterly installments of $7,500 and bears interest at a rate equal to Synthetic USD LIBOR plus 2.50% per annum. (f) Incremental Term Loan B-6 requires quarterly installments of $5,005 and bears interest at a rate equal to SOFR plus 4.50% per annum. The CSC Holdings' Incremental Term Loan B-6 that is due on the earlier of (i) January 15, 2028 and (ii) April 15, 2027 if, as of such date, any Incremental Term Loan B-5 borrowings are still outstanding, unless the Incremental Term Loan B-5 maturity date has been extended to a date falling after January 15, 2028. (g) Pursuant to the term loan agreement, the interest rate on outstanding borrowings subsequent to the phase-out of London Interbank Offered Rate ("LIBOR") as of June 30, 2023, is Synthetic USD LIBOR, calculated as Term SOFR plus the spread adjustment for the corresponding LIBOR setting, being 0.11448% (1 month), 0.26161% (3 month) and 0.42826% (6 month), until September 30, 2024. (h) The indebtedness was collateralized by shares of Comcast common stock. In January 2023, we settled this debt by delivering shares of Comcast common stock and the related equity derivative contracts. See Note 12. Supply Chain Financing Arrangement We have a supply chain financing arrangement with a financial institution with credit availability of $175,000 that is used to finance certain of our property and equipment purchases. This arrangement extends our repayment terms beyond a vendor’s original invoice due dates (for up to one year) and as such are classified as debt on our consolidated balance sheets. The following is a rollforward of the outstanding balances relating to our supply chain financing arrangement: Balance as of December 31, 2022 $ 123,880 Invoices financed 213,325 Repayments (162,751) Balance as of December 31, 2023 $ 174,454

DERIVATIVE CONTRACTS AND COLL_2

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	12 Months Ended
	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Interest Rate Derivatives	The following represents the location of the assets associated with our derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at December 31, 2023 2022 Asset Derivatives: Prepaid forward contracts Derivative contracts $ — $ 263,873 Interest rate swap contracts Other assets, long-term 112,914 185,622 $ 112,914 $ 449,495
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying Comcast common stock: Years Ended December 31, 2023 2022 2021 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ (166,489) $ 425,815 $ 85,911 Change in fair value of Comcast common stock included in gain (loss) on investments 192,010 (659,792) (88,917) Gain on interest rate swap contracts, net 32,664 271,788 92,735
Schedule of Interest Rate Swap Contracts	Interest Rate Swap Contract In connection with the phase-out of LIBOR as of June 30, 2023, the Company entered into amendments to its existing interest rate swap contracts that transitioned the reference rates from LIBOR to SOFR. These amendments had no impact to our consolidated financial statements as we utilized the expedients set forth in FASB Topic 848, Reference Rate Reform. The following is a summary of the terms of the amended interest rate swap contracts: Notional Amount Prior to Amendments Subsequent to Amendments Maturity Date Company Pays Company Receives Company Pays Company Receives CSC Holdings: January 2025 (a) $ 500,000 Fixed rate of 1.53% Three-month LIBOR Fixed rate of 1.3281% One-month SOFR January 2025 (a) 500,000 Fixed rate of 1.625% Three-month LIBOR Fixed rate of 1.4223% One-month SOFR January 2025 (a) 500,000 Fixed rate of 1.458% Three-month LIBOR Fixed rate of 1.2567% One-month SOFR December 2026 (b) 750,000 Fixed rate of 2.9155% Three-month LIBOR Fixed rate of 2.7129% One-month SOFR December 2026 (b) 750,000 Fixed rate of 2.9025% Three-month LIBOR Fixed rate of 2.6999% One-month SOFR Lightpath: December 2026 (a) 300,000 Fixed rate of 2.161% One-month LIBOR Fixed rate of 2.11% One-month SOFR (a) Amended rates effective June 15, 2023. (b) Amended rates effective July 17, 2023. In April 2023, Lightpath entered into an interest rate swap contract, effective June 2023 on a notional amount of $180,000, whereby Lightpath pays interest of 3.523% through December 2026 and receives interest based on one-month SOFR. This swap contract is also not designated as a hedge for accounting purposes. Accordingly, this contract is carried at its fair market value on our consolidated balance sheet, with changes in fair value reflected in the consolidated statements of operations.

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	12 Months Ended
FAIR VALUE MEASUREMENT (Tables)	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents our financial assets and financial liabilities that are measured at fair value on a recurring basis and their classification under the fair value hierarchy: Fair Value December 31, 2023 2022 Assets: Money market funds Level I $ 49,541 $ 141,137 Investment securities pledged as collateral Level I — 1,502,145 Prepaid forward contracts (a) Level II — 263,873 Interest rate swap contracts Level II 112,914 185,622 Liabilities: Contingent consideration related to acquisition Level III 2,037 8,383 (a) In January 2023, the Company settled its outstanding collateralized indebtedness by delivering the Comcast shares it held and the related equity derivative contracts.
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	The carrying values, estimated fair values, and classification under the fair value hierarchy of the Company's financial instruments, excluding those that are carried at fair value in the accompanying consolidated balance sheets, are summarized below: December 31, 2023 December 31, 2022 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 8,257,682 $ 8,323,654 $ 9,063,495 $ 9,145,298 Collateralized indebtedness (b) Level II — — 1,746,281 1,731,771 Senior guaranteed and senior secured notes Level II 9,079,882 7,784,288 8,081,489 6,154,075 Senior notes Level II 7,334,447 4,932,931 7,324,238 4,531,300 Notes payable and supply chain financing Level II 174,594 174,594 127,635 127,608 $ 24,846,605 $ 21,215,467 $ 26,343,138 $ 21,690,052 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums. (b) In January 2023, the Company settled its outstanding collateralized indebtedness by delivering the Comcast shares it held and the related equity derivative contracts.

INCOME TAXES (Tables)

INCOME TAXES (Tables)	12 Months Ended
INCOME TAXES (Tables)	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Components of Income Tax Expense (Benefit)	Income tax expense for the years ended December 31, 2023, 2022 and 2021 consist of the following components: Altice USA CSC Holdings Years Ended December 31, Years Ended December 31, 2023 2022 2021 2023 2022 2021 Current expense (benefit): Federal $ 227,189 $ 133,329 $ 168,397 $ 227,189 $ 133,329 $ 179,032 State 54,130 81,076 56,211 62,312 88,068 56,211 Foreign 105 128 (3) 105 128 (3) 281,424 214,533 224,605 289,606 221,525 235,240 Deferred expense (benefit): Federal (210,378) (43,797) 70,989 (210,378) (43,797) 70,989 State (16,547) 80,356 (30,108) (21,680) 69,676 (38,608) Foreign 10 (174) (180) 10 (174) (180) (226,915) 36,385 40,701 (232,048) 25,705 32,201 54,509 250,918 265,306 57,558 247,230 267,441 Tax expense relating to uncertain tax positions (14,981) 44,922 29,669 (14,981) 44,922 29,669 Income tax expense $ 39,528 $ 295,840 $ 294,975 $ 42,577 $ 292,152 $ 297,110
Schedule of Effective Income Tax Rate Reconciliation	The income tax expense attributable to operations differs from the amount derived by applying the statutory federal rate to pretax income principally due to the effect of the following items: Altice USA CSC Holdings Years Ended December 31, Years Ended December 31, 2023 2022 2021 2023 2022 2021 Federal tax expense at statutory rate $ 24,899 $ 108,513 $ 274,240 $ 24,899 $ 108,513 $ 274,240 State income taxes, net of federal impact 6,436 26,527 21,492 9,842 28,768 13,973 Minority interest (5,494) (5,914) (5,092) (5,494) (5,914) (5,092) Changes in the valuation allowance 13,847 20,176 13,573 14,099 15,494 12,793 Change in New York state rate to measure deferred taxes, net of federal impact — 112,117 — — 112,117 — Other changes in the state rates used to measure deferred taxes, net of federal impact 23,909 (9,603) (6,924) 23,300 (10,849) (7,125) Tax expense (benefit) relating to uncertain tax positions (14,311) 36,281 24,580 (14,311) 36,281 24,580 Tax credits (4,201) (3,544) (2,500) (4,201) (3,544) (2,500) Excess tax deficiencies (benefits) related to share-based compensation including non-deductible carried unit plans 11,696 10,321 (2,602) 11,696 10,321 (2,602) Non-deductible officers compensation 3,934 4,916 7,201 3,934 4,916 7,201 Foreign losses of disregarded entities (6,097) (6,352) — (6,097) (6,352) — Business dispositions (46,591) — (12,643) (46,591) — (12,643) Goodwill impairment 34,241 — — 34,241 — — Other permanent differences — — (22,613) — — (22,613) Other, net (2,740) 2,402 6,263 (2,740) 2,401 16,898 Income tax expense $ 39,528 $ 295,840 $ 294,975 $ 42,577 $ 292,152 $ 297,110
Schedule of Deferred Tax Assets and Liabilities	The tax effects of temporary differences which give rise to significant portions of deferred tax assets or liabilities and the corresponding valuation allowance are as follows: Altice USA CSC Holdings December 31, December 31, 2023 2022 2023 2022 Noncurrent NOLs, capital loss, and tax credit carry forwards (a) $ 130,134 $ 117,995 $ 104,071 $ 86,547 Compensation and benefit plans 90,853 97,115 90,853 97,115 Restructuring liability 7,220 2,079 7,220 2,079 Other liabilities 50,440 48,433 50,440 48,433 Research and experimental expenditures 33,427 22,292 33,427 22,292 Derivative contracts (40,357) 315,861 (40,357) 315,861 Interest deferred for tax purposes 536,284 272,842 536,284 272,842 Operating lease liability 79,263 71,232 79,263 71,232 Deferred tax assets 887,264 947,849 861,201 916,401 Less: Valuation allowance (87,407) (73,560) (64,844) (50,745) Net deferred tax assets, noncurrent 799,857 874,289 796,357 865,656 Deferred tax liabilities: Fixed assets and intangibles (5,250,112) (5,185,319) (5,250,112) (5,185,319) Operating lease asset (64,163) (58,360) (64,163) (58,360) Investments 1,519 (393,700) 1,519 (393,700) Partnership investments (173,198) (155,434) (173,198) (155,434) Prepaid expenses (14,630) (11,477) (14,630) (11,477) Fair value adjustments related to debt and deferred financing costs (1,751) (5,698) (1,751) (5,698) Opportunity Zone tax deferral (145,655) (145,608) (145,655) (145,608) Deferred tax liability, noncurrent (5,647,990) (5,955,596) (5,647,990) (5,955,596) Total net deferred tax liabilities $ (4,848,133) $ (5,081,307) $ (4,851,633) $ (5,089,940)
Summary of Income Tax Contingencies	The following is the activity relating to our liability for uncertain tax positions: Years Ended December 31, 2023 2022 2021 Balance at beginning of year $ 70,593 $ 25,296 $ 1,301 Increases (decreases) from prior period positions (18,714) 871 (637) Increases from current period positions 1,131 44,426 24,632 Balance at end of year $ 53,010 $ 70,593 $ 25,296

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	12 Months Ended
SHARE-BASED COMPENSATION (Tables)	Dec. 31, 2023	Dec. 31, 2022
Share-Based Payment Arrangement [Abstract]
Share-based Compensation, Stock Options, Activity	The following table summarizes activity related to stock options granted to our employees: Shares Under Option Weighted Average Weighted Average Remaining Time Aggregate Intrinsic Balance at December 31, 2020 37,062,146 $ 25.52 8.69 $ 457,608 Granted 18,192,257 16.87 Exercised (1,368,156) 17.47 Forfeited and Cancelled (2,887,431) 28.02 Balance at December 31, 2021 50,998,816 22.51 8.29 6,801 Granted 7,888,472 9.30 Forfeited and Cancelled (7,811,613) 23.84 Balance at December 31, 2022 51,075,675 $ 20.27 7.73 $ 184 Granted 640 4.69 Forfeited (3,525,176) 21.94 Exchanged and Canceled (b) (24,015,508) 20.72 Balance at December 31, 2023 23,535,631 $ 19.55 5.98 $ — Options exercisable at December 31, 2023 17,931,371 $ 22.76 5.17 $ — (a) The aggregate intrinsic value is calculated as the difference between the exercise price and the closing price of Altice USA's Class A common stock at the respective date. (b) Options exchanged and canceled in connection with the Company's stock option exchange program discussed below.
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions		The weighted-average fair values of stock option awards granted during the years ended December 31, 2023, 2022 and 2021 were $2.42, $3.76 and $6.42, respectively. The following weighted-average assumptions were used to calculate these fair values: Years Ended December 31, 2023 2022 2021 Risk-free interest rate 3.53% 3.42% 1.36% Expected life (in years) 5.71 6.24 6.02 Dividend yield —% —% —% Volatility 50.10% 41.79% 35.80%
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following table presents share-based compensation expense (benefit) and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost 2023 2022 2021 Awards issued pursuant to LTIP: Stock option awards (a) $ (3,850) $ 86,307 $ 87,697 $ 6,659 Performance stock units (a) (12,757) 10,220 8,675 6,443 Restricted share units 33,809 63,458 1,120 57,546 Other 30,724 — 804 46,937 $ 47,926 $ 159,985 $ 98,296 $ 117,585 (a) The benefit for the year ended December 31, 2023 includes credits due to the modification of awards to certain former executive officers and other forfeitures.

AFFILIATE AND RELATED PARTY T_2

AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	12 Months Ended
AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	Dec. 31, 2023
Related Party Transactions [Abstract]
Summary of related party transactions	The following table summarizes the revenue and expenses related to services provided to or received from affiliates and related parties: Years Ended December 31, 2023 2022 2021 Revenue $ 1,471 $ 2,368 $ 13,238 Operating expenses: Programming and other direct costs $ (13,794) $ (14,321) $ (17,167) Other operating expenses, net (57,063) (12,210) (11,989) Operating expenses, net (70,857) (26,531) (29,156) Other credits — 48 — Net charges $ (69,386) $ (24,115) $ (15,918) Capital Expenditures $ 122,384 $ 91,382 $ 54,163 Aggregate amounts that were due from and due to affiliates and related parties are summarized below: December 31, 2023 2022 Due from: Altice Europe $ 137 $ 529 Other affiliates and related parties 270 43 $ 407 $ 572 Due to: Altice Europe $ 46,307 $ 19,211 Other affiliates and related parties 25,216 1,646 $ 71,523 $ 20,857 Amounts due from affiliates presented in the table above represent amounts due for services provided to the respective related party. Amounts due to affiliates presented in the table above and included in other current liabilities in the accompanying balance sheets relate to the purchase of equipment, customer care services, and advertising services, as well as reimbursement for payments made on our behalf.

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Tables)	12 Months Ended
COMMITMENTS AND CONTINGENCIES (Tables)	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Contractual Obligation, Fiscal Year Maturity Schedule	Future cash payments and commitments required under arrangements pursuant to contracts entered into by us in the normal course of business as of December 31, 2023, are as follows: Payments Due by Period Total Year 1 Years 2-3 Years 4-5 More than Off balance sheet arrangements: Purchase obligations (a) $ 5,809,702 $ 2,708,555 $ 2,805,204 $ 288,157 $ 7,786 Guarantees (b) 75,840 75,840 — — — Letters of credit (c) 133,512 1,485 1,310 — 130,717 Total $ 6,019,054 $ 2,785,880 $ 2,806,514 $ 288,157 $ 138,503 (a) Purchase obligations primarily include contractual commitments with various programming vendors to provide video services to customers and minimum purchase obligations to purchase goods or services, including contracts to acquire handsets and other equipment. Future fees payable under contracts with programming vendors are based on numerous factors, including the number of customers receiving the programming. Amounts reflected above related to programming agreements are based on the number of customers receiving the programming as of December 31, 2023, multiplied by the per customer rates or the stated annual fee, as applicable, contained in the executed agreements in effect as of December 31, 2023. (b) Includes franchise and performance surety bonds primarily for our cable television systems. (c) Represent letters of credit guaranteeing performance to municipalities and public utilities and payment of insurance premiums. Payments due by period for these arrangements represent the year in which the commitment expires although payments under these arrangements are required only in the event of nonperformance.

DESCRIPTION OF BUSINESS AND R_2

DESCRIPTION OF BUSINESS AND RELATED MATTERS (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) segment shares	Dec. 31, 2021 USD ($) shares	Nov. 20, 2020 USD ($)	Jul. 31, 2019 USD ($)	Jun. 08, 2018 USD ($)
Business Acquisition [Line Items]
Number of segments \| segment	1
Share repurchase authorized			$ 2,000,000		$ 2,000,000
Shares repurchased (in shares) \| shares	285,507,773	23,593,728
Value of shares repurchased	$ 7,808,698	$ 804,928
Total shares authorized for repurchase
Business Acquisition [Line Items]
Share repurchase authorized	$ 9,000,000
Common Class A
Business Acquisition [Line Items]
Shares repurchased (in shares) \| shares	1,522,965
Common Class B
Business Acquisition [Line Items]
Shares repurchased (in shares) \| shares	0
2019 Share Repurchase Authorization [Member]
Business Acquisition [Line Items]
Share repurchase authorized				$ 5,000,000
Retained Earnings [Member]
Business Acquisition [Line Items]
Value of shares repurchased		804,692
Additional Paid-in Capital [Member]
Business Acquisition [Line Items]
Value of shares repurchased		$ 0

SUMMARY OF SIGNIFICANT ACCOUN_4

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) vote shares	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Class of Stock [Line Items]
Advertising costs	$ 253,777	$ 299,590	$ 274,639
Concentration Risk, Customer	10	10	10
Document Period End Date	Dec. 31, 2023
concentration of customer to trade receivables	10%	10%
CSC Holdings
Class of Stock [Line Items]
Membership units outstanding \| shares	100
Distributions to parent	$ 1,793	$ 170	$ 763,435
Common Class A
Class of Stock [Line Items]
Common stock number of votes per share \| vote	1
Common Class B
Class of Stock [Line Items]
Common stock number of votes per share \| vote	25
Common stock conversion ratio	1
Minimum \| Customer Contracts
Class of Stock [Line Items]
Enterprise Contract Life	3 years
Maximum \| Customer Contracts
Class of Stock [Line Items]
Enterprise Contract Life	5 years
Franchise
Class of Stock [Line Items]
Franchise fees and other taxes and fees	$ 219,988	$ 232,795	$ 257,364

SUMMARY OF SIGNIFICANT ACCOUN_5

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Contract Asset and Liability (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Accounting Policies [Abstract]
Contract assets	$ 18,109	$ 17,511

SUMMARY OF SIGNIFICANT ACCOUN_6

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 9,237,064	$ 9,647,659	$ 10,090,849
Broadband [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,824,472	3,930,667	3,925,089
Pay TV [Member]
Disaggregation of Revenue [Line Items]
Revenues	3,072,011	3,281,306	3,526,205
Telephony [Member]
Disaggregation of Revenue [Line Items]
Revenues	300,198	332,406	404,813
Business Services and Wholesale [Member]
Disaggregation of Revenue [Line Items]
Revenues	1,467,149	1,474,269	1,586,423
Advertising and News [Member]
Disaggregation of Revenue [Line Items]
Revenues	447,742	520,293	550,667
Mobile [Member]
Disaggregation of Revenue [Line Items]
Revenues	77,012	61,832	51,281
Other
Disaggregation of Revenue [Line Items]
Revenues	48,480	46,886	46,371
Total Residential Revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 7,273,693	$ 7,606,211	$ 7,907,388

SUMMARY OF SIGNIFICANT ACCOUN_7

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Schedule of Stock by Class (Details) - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Common Stock Outstanding Roll Forward [Roll Forward]
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	(285,507,773)		(23,593,728)
Issuance of common shares in connection with the vesting of restricted stock units	96	1,966
Treasury Stock, Shares, Acquired		18,921
Common Class A
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	271,833,063	270,320,798
Conversion of Class B common stock to Class A common stock	104,801	4,113
Issuance of common shares in connection with the vesting of restricted stock units	1,357,983	1,506,186
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	(1,522,965)
Ending balance common stock, shares outstanding (in shares)	271,772,978	271,833,063	270,320,798
Common Class B
Common Stock Outstanding Roll Forward [Roll Forward]
Beginning balance common stock, shares outstanding (in shares)	184,329,229	184,333,342
Conversion of Class B common stock to Class A common stock	(104,801)	(4,113)
Issuance of common shares in connection with the vesting of restricted stock units	0	0
Retirement of Class A common shares in connection with the Company's stock repurchase plan (in shares)	0
Issuance of common shares in connection with the vesting of restricted stock units	0	0
Ending balance common stock, shares outstanding (in shares)	184,224,428	184,329,229	184,333,342

CHANGE IN ACCOUNTING POLICIES -

CHANGE IN ACCOUNTING POLICIES - Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 30, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents	$ 302,058		$ 305,484
Property, Plant and Equipment, Net	8,117,757		7,500,780
Goodwill	8,044,716	$ 8,207,771	8,208,773	$ 8,205,863
Total assets	31,923,616		33,664,966
Total current liabilities	2,308,124		4,039,701
Deferred tax liability	4,848,460		5,081,661
Liabilities	32,358,034		34,168,878
Paid-in capital	187,186		182,701
Retained Earnings (Accumulated Deficit)	(601,075)		(654,273)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(434,418)		(503,912)	$ (870,902)	$ (1,203,139)
Liabilities and Equity	$ 31,923,616		$ 33,664,966

ACCOUNTING PRONOUNCEMENTS (Deta

ACCOUNTING PRONOUNCEMENTS (Details)	12 Months Ended
ACCOUNTING PRONOUNCEMENTS (Details)	Dec. 31, 2023
Accounting Policies [Abstract]
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	ACCOUNTING STANDARDS Accounting Standards Adopted in 2023 ASU No. 2022-04, Liabilities—Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations In September 2022, the FASB issued ASU 2022-04, Liabilities—Supplier Finance Programs (Subtopic 405-50): Disclosure of Supplier Finance Program Obligations, to enhance transparency about an entity’s use of supplier finance programs. ASU 2022-04 requires the buyer in a supplier finance program to disclose (a) information about the key terms of the program, (b) the amount outstanding that remains unpaid by the buyer as of the end of the period, (c) a rollforward of such amounts during each annual period, and (d) a description of where in the financial statements outstanding amounts are being presented. We adopted ASU 2022-04 on January 1, 2023. See Note 11 for further information. Accounting Standards Adopted in 2022 ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers In October 2021, the FASB issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers , which requires companies to apply the definition of a performance obligation under ASC Topic 606, Revenue from Contracts with Customers, to recognize and measure contract assets and contract liabilities relating to contracts with customers that are acquired in a business combination. Under prior GAAP, an acquirer generally recognized assets acquired and liabilities assumed in a business combination, including contract assets and contract liabilities arising from revenue contracts with customers, at fair value on the acquisition date. ASU No. 2021-08 results in the acquirer recording acquired contract assets and liabilities on the same basis that would have been recorded before the acquisition under ASC Topic 606. We elected to adopt ASU No. 2021-08 on January 1, 2022 and we will provide the required disclosures for any future material transactions. ASU No. 2021-10, Government Assistance (Topic 832) In November 2021, the FASB issued ASU No. 2021-10, Government Assistance (Topic 832) , which requires business entities to disclose information about transactions with a government that are accounted for by applying a grant or contribution model by analogy (for example, IFRS guidance in IAS 20 or guidance on contributions for not-for-profit entities in ASC 958-605). For transactions in the scope of the ASU No. 2021-10, business entities will need to provide information about the nature of the transaction, including significant terms and conditions, as well as the amounts and specific financial statement line items affected by the transaction. We adopted the new guidance on January 1, 2022 and it did not have a material impact on our consolidated financial statements. We will provide the required disclosures for any future material transactions. Recently Issued But Not Yet Adopted Accounting Pronouncements ASU No. 2023-07 Segment Reporting—Improvements to Reportable Segment Disclosures In November 2023, the FASB issued ASU No. 2023-07, Segment Reporting—Improvements to Reportable Segment Disclosures, to improve financial reporting by requiring disclosure of incremental segment information on an annual and interim basis for all public entities. ASU No. 2023-07 is meant to enhance interim disclosure requirements, clarify circumstances in which an entity can disclose multiple segment measures of profit or loss, and provide new segment disclosure requirements for entities with a single reportable segment. ASU No. 2023-07 is effective for us for the year ended December 31, 2024, although early adoption is permitted. We are currently evaluating the impact of adopting ASU 2023-07. ASU No. 2023-09 Income Taxes—Improvements to Income Tax Disclosures In December 2023, the FASB issued ASU No. 2023-09, Income Taxes—Improvements to Income Tax Disclosures , which require greater disaggregation of income tax disclosures related to the income tax rate reconciliation and income taxes paid. ASU No. 2023-09 is effective for us for the year ending December 31, 2025, although early adoption is permitted. We are currently evaluating the impact of adopting ASU No. 2023-09.

Earnings Per Share (Details)

Earnings Per Share (Details) - shares shares in Thousands	12 Months Ended
Earnings Per Share (Details) - shares shares in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Basic weighted average common shares (in thousands)	454,723	453,244	458,311
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	3,972
Antidilutive securities	46,084	57,961	15,856
Share-based compensation awards whose performance metrics have not been achieved	20,831	7,309	8,557
Restricted Stock Award [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	74	38	11
Restricted Stock Units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	0	1
Deferred cash-denominated award
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	237	0	0

ALLOWANCE FOR DOUBTFUL ACCOUN_3

ALLOWANCE FOR DOUBTFUL ACCOUNTS (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Balance at Beginning of Period	$ 20,767	$ 27,931	$ 25,198
Provision for doubtful accounts	84,461	88,159	68,809
Deductions/ Write-Offs and Other Charges	(83,313)	(95,323)	(66,076)
Balance at End of Period	$ 21,915	$ 20,767	$ 27,931

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Non-Cash Investing and Financing Activities:
Property and equipment accrued but unpaid	$ 317,000	$ 496,135	$ 335,680
Notes payable for the purchase of equipment and other assets	213,325	132,452	89,898
Right-of-use assets acquired in exchange for finance lease obligations	133,056	160,542	145,047
Payable relating to acquisition of noncontrolling interest	7,036	0	0
Other non-cash investing and financing transactions	249	1,117	500
Contributions from (distributions to) parent, net	8,183	7,015	(19,500)
Supplemental Data:
Cash interest paid, net of capitalized interest		1,247,747	1,178,088
Income taxes paid, net		253,962	263,589
CSC Holdings
Supplemental Data:
Cash interest paid, net of capitalized interest	1,582,646	1,247,747	1,178,088
Income taxes paid, net	$ 200,295	$ 253,962	$ 263,589

RESTRUCTURING AND OTHER EXPEN_3

RESTRUCTURING AND OTHER EXPENSE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Restructuring Reserve [Roll Forward]
Impairment of right-of-use operating lease assets	$ 10,554	$ 3,821	$ 6,701
Remeasurement of contingent consideration related to an acquisition	(6,345)	0	0
Transaction costs related to certain transactions not related to our operations	5,180	4,310	1,697
Litigation settlement (a)	0	112,500	0
Goodwill impairment (b)	163,055	0	0
Restructuring, impairments and other operating items	214,727	130,285	17,176
T-Mobile Litigation
Restructuring Reserve [Roll Forward]
Payments for Legal Settlements		65,000
Estimated Litigation Liability, Current	47,500
CSC Holdings
Restructuring Reserve [Roll Forward]
Goodwill impairment (b)	163,055	0	0
Restructuring, impairments and other operating items	214,727	130,285	17,176
Employee Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges	39,915	4,002	6,227
Facility Realignment and Other Costs [Member]
Restructuring Reserve [Roll Forward]
Restructuring Charges	$ 2,368	$ 5,652	$ 2,551

PROPERTY, PLANT AND EQUIPMENT -

PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,252,919	$ 1,218,365	$ 1,145,316
Customer premise equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Customer premise equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Headends and related equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Headends and related equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Infrastructure \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Infrastructure \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	25 years
Equipment and software \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	3 years
Equipment and software \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Furniture and fixtures \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Furniture and fixtures \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	8 years
Transportation equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	5 years
Transportation equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and building improvements \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	10 years
Buildings and building improvements \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Acquisition and development of internal use software
Property, Plant and Equipment [Line Items]
Property, plant and equipment capitalized	$ 147,267	$ 138,845	$ 145,837

PROPERTY, PLANT AND EQUIPMENT_2

PROPERTY, PLANT AND EQUIPMENT - Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 16,280,199	$ 15,286,177
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	16,280,199	15,286,177
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(8,162,442)	(7,785,397)
Property, plant and equipment, net	8,117,757	7,500,780
Customer premise equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	2,242,175	2,134,561
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,242,175	2,134,561
Equipment and software
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	1,436,010	1,434,742
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,436,010	1,434,742
Construction in progress (including materials and supplies)
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	353,572	499,598
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	353,572	499,598
Leasehold improvements
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	187,608	185,645
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	187,608	185,645
Land
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	48,804	48,793
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	48,804	48,793
Headends and related equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	2,506,665	2,493,208
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	2,506,665	2,493,208
Infrastructure
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	8,727,425	7,711,815
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	8,727,425	7,711,815
Furniture and fixtures
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	80,585	81,518
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	80,585	81,518
Transportation equipment
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	123,193	145,413
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	123,193	145,413
Buildings and building improvements
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	574,162	550,884
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 574,162	$ 550,884

LEASES (Details)

LEASES (Details) - USD ($) $ in Thousands	12 Months Ended
LEASES (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Right-of-use operating lease assets	$ 255,545	$ 250,601
Operating Lease, Liability, Current	47,965	38,740
Right-of-use operating lease liability	264,647	260,237
Finance Lease, Right-of-Use Asset	326,427	332,217
Finance Lease, Liability, Noncurrent	104,720	114,938
Operating Lease, Right-of-Use Asset, Amortization Expense	62,157	58,124
Finance Lease, Right-of-Use Asset, Amortization	95,449	86,455
Finance Lease, Interest Expense	14,912	11,332
Finance Lease, Cost	110,361	97,787
Finance And Operating Lease, Lessee Expense	172,518	155,911
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	60,108	74,063
Finance Lease, Interest Payment on Liability	14,912	11,332
Operating Lease, Payments	$ 63,737	$ 65,879
Operating Lease, Weighted Average Remaining Lease Term	8 years 2 months 12 days	8 years 1 month 6 days
Finance Lease, Weighted Average Remaining Lease Term	2 years 2 months 12 days	2 years
Operating Lease, Weighted Average Discount Rate, Percent	5.70%	5.63%
Finance Lease, Weighted Average Discount Rate, Percent	7.78%	5.49%
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment, net of accumulated depreciation of $8,162,442 and $7,785,397, respectively	Property, plant and equipment, net of accumulated depreciation of $8,162,442 and $7,785,397, respectively
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-Term Debt, Current Maturities	Long-Term Debt, Current Maturities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt, net of current maturities	Long-term debt, net of current maturities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-Term Debt, Current Maturities	Long-Term Debt, Current Maturities

LEASES - Future Minimum Lease P

LEASES - Future Minimum Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Finance Lease, Liability, Payments, Due Next Twelve Months	$ 136,863
Finance Lease, Liability, Payments, Due Year Two	76,968
Finance Lease, Liability, Payments, Due Year Three	26,475
Finance Lease, Liability, Payments, Due Year Four	4,921
Finance Lease, Liability, Payments, Due Year Five	3,743
Finance Lease, Liability, Payments, Due after Year Five	809
Finance Lease, Liability, Payment, Due, Total	249,779
Finance Lease, Liability, Undiscounted Excess Amount	(21,423)
Finance Lease, Liability	228,356	$ 244,595
Lessee, Operating Lease, Liability, Payments, Due Next Twelve Months	58,367
Lessee, Operating Lease, Liability, Payments, Due Year Two	54,781
Lessee, Operating Lease, Liability, Payments, Due Year Three	50,883
Lessee, Operating Lease, Liability, Payments, Due Year Four	47,799
Lessee, Operating Lease, Liability, Payments, Due Year Five	38,055
Lessee, Operating Lease, Liability, Payments, Due after Year Five	146,237
Lessee, Operating Lease, Liability, Payments, Due, Total	396,122
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	(83,510)
Operating Lease, Liability	$ 312,612

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,133,947	$ 7,210,005
Finite-Lived Intangible Assets, Accumulated Amortization	(5,874,612)	(5,549,674)
Finite-Lived Intangible Assets, Net	1,259,335	1,660,331
CSC Holdings
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	1,259,335	1,660,331
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,073,152	6,123,586
Finite-Lived Intangible Assets, Accumulated Amortization	(4,824,140)	(4,484,286)
Finite-Lived Intangible Assets, Net	1,249,012	1,639,300
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,010,300	1,024,300
Finite-Lived Intangible Assets, Accumulated Amortization	(1,010,300)	(1,018,212)
Finite-Lived Intangible Assets, Net	0	6,088
Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	50,495	62,119
Finite-Lived Intangible Assets, Accumulated Amortization	(40,172)	(47,176)
Finite-Lived Intangible Assets, Net	$ 10,323	$ 14,943
Minimum \| Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	3 years
Minimum \| Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	4 years
Minimum \| Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	1 year
Maximum \| Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	18 years
Maximum \| Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	10 years
Maximum \| Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life	15 years

INTANGIBLE ASSETS - Narrative (

INTANGIBLE ASSETS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 391,378	$ 555,308	$ 641,836
Fully amortized intangible asset no longer in service		$ 56,783

INTANGIBLE ASSETS - Schedule of

INTANGIBLE ASSETS - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 309,717
2025	262,152
2026	217,182
2027	173,411
2028	$ 130,122

INTANGIBLE ASSETS - Goodwill (D

INTANGIBLE ASSETS - Goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2023	Jun. 30, 2019
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 8,208,773	$ 8,205,863
Adjustments to purchase accounting relating to acquisitions	(1,002)	2,910
Goodwill, ending balance	8,044,716	8,208,773	$ 8,205,863
Cable television franchises	13,216,355	13,216,355	13,216,355
Indefinite-lived Intangible Assets Acquired	0	0
Goodwill	8,044,716	8,208,773	8,205,863	$ 8,207,771
Cable television franchises	13,216,355	13,216,355	13,216,355
Indefinite-lived Intangible Assets Acquired	0	0
Adjustments to purchase accounting relating to acquisitions	(1,002)	2,910
Goodwill impairments	(163,055)	0	0
Payments for acquisitions, net of cash acquired	0	$ (2,060)	$ (340,444)
Restructuring and other operating items
Goodwill impairments	(163,055)
Impairment of Intangible Assets, Indefinite-Lived (Excluding Goodwill)	0
Telecommunications Unit
Goodwill				$ 8,044,716
Advertising and News [Member]
Goodwill [Roll Forward]
Goodwill, ending balance	163,055
Goodwill	$ 163,055
Cheddar [Member]
Goodwill					$ 130,040

DEBT - Credit Silo Combination

DEBT - Credit Silo Combination (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount	$ 25,126,605	$ 26,676,545
Long-term debt	25,074,961	26,587,733
Face Amount of Senior Debt and Senior Secured Debt	8,660,000	7,660,000
Carrying amount of Senior Debt and Senior Secured Debt	8,635,472	7,638,443
Face amount of Credit Facility Debt	7,741,655	8,557,298
Carrying value of Credit Facility Debt	7,685,784	8,488,017
Finance Lease, Liability	228,356	244,595
Long-Term Debt, Current Maturities	(359,407)	(2,075,077)
Finance Lease, Liability, Current	123,636	129,657
Long-term debt, net of current maturities	24,715,554	24,512,656
Principal Amount	25,126,605	26,676,545
Carrying amount of Senior Notes	6,925,311	6,916,148
Face Amount of Senior Notes	6,875,000	6,875,000
Cablevision Lightpath
Debt Instrument [Line Items]
Face Amount of Senior Debt and Senior Secured Debt	1,447,000	1,453,000
Carrying amount of Senior Debt and Senior Secured Debt	1,425,444	1,426,614
Credit Facility [Domain]
Debt Instrument [Line Items]
Long-Term Debt, Current Maturities	(61,177)	(71,643)
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,594	127,496
Long-term debt	174,594	127,496
Principal Amount	174,594	127,496
Short-term Debt
Debt Instrument [Line Items]
Principal amount	359,407	2,087,813
Long-Term Debt, Current Maturities	(359,407)	(2,075,077)
Principal Amount	359,407	2,087,813
Collateralized Debt Obligations [Member]
Debt Instrument [Line Items]
Principal amount	0	1,759,017
Debt Instrument, Collateral Amount	0	(1,746,281)
Principal Amount	0	1,759,017
Incremental Term Loan B-3 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 521,744	527,014
Stated interest rate	7.726%
Credit facility	$ 520,988	525,883
Principal Amount	521,744	527,014
CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 825,000	1,575,000
Stated interest rate	7.712%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475,000
Credit facility	821,632	1,570,730
Principal Amount	825,000	1,575,000
CSC Holdings Term Loan B \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,520,483	1,535,842
Stated interest rate	7.726%
Credit facility	$ 1,518,530	1,532,644
Principal Amount	1,520,483	1,535,842
Line of credit facility, periodic payment amount	3,840
Incremental Term Loan B-5 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,887,500	2,917,500
Stated interest rate	7.976%
Credit facility	$ 2,876,131	2,902,921
Principal Amount	2,887,500	2,917,500
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,454	123,880
Principal Amount	174,454	123,880
Cablevision Lightpath Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	0
Line of Credit Facility, Maximum Borrowing Capacity	100,000
Credit facility	0
Principal Amount	0
Cablevision Lightpath Term B Loan \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 582,000	588,000	$ 600,000
Stated interest rate	8.726%
Credit facility	$ 571,898	575,478
Principal Amount	582,000	588,000	$ 600,000
Incremental Term Loan B-6 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,986,928	2,001,942
Stated interest rate	9.862%
Credit facility	$ 1,948,503	1,955,839
Principal Amount	1,986,928	2,001,942
Collateralized Debt Obligations [Member]
Debt Instrument [Line Items]
Principal amount	0	1,759,017
Long-term debt	0	1,746,281
Principal Amount	0	1,759,017
Notes Payable and Supply Chain Financing
Debt Instrument [Line Items]
Principal amount	174,594	127,635
Long-term debt	174,594	127,635
Principal Amount	174,594	127,635
Senior Notes \| 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount	$ 750,000
Stated interest rate	5.25%
Outstanding debt	$ 726,343
Principal Amount	750,000
Senior Notes \| Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 4,118
Stated interest rate	7.50%
Outstanding debt	$ 4,114	4,113
Principal Amount	4,118
Senior Notes \| CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,045,882
Stated interest rate	7.50%
Outstanding debt	$ 1,044,933	1,044,752
Principal Amount	1,045,882
Senior Notes \| CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,250,000
Stated interest rate	5.75%
Outstanding debt	$ 2,275,915	2,279,483
Principal Amount	2,250,000
Senior Notes \| CSC Holdings 4.625% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,325,000
Stated interest rate	4.625%
Outstanding debt	$ 2,359,078	2,363,082
Principal Amount	$ 2,325,000
Senior Notes \| Cablevision Lightpath LLC 5.625% Notes due September 15, 2028
Debt Instrument [Line Items]
Principal amount		415,000
Stated interest rate	5.625%
Outstanding debt	$ 409,136	408,090
Principal Amount		415,000
Senior Notes \| CSC Holdings 5.000% Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount	$ 500,000
Stated interest rate	5%
Outstanding debt	$ 498,525	498,375
Principal Amount	$ 500,000
Secured Debt [Member] \| 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount		1,310,000
Stated interest rate	5.50%
Outstanding debt	$ 1,307,709	1,307,091
Principal Amount		1,310,000
Secured Debt [Member] \| 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal amount		1,000,000
Stated interest rate	5.375%
Outstanding debt	$ 995,940	995,078
Principal Amount		1,000,000
Secured Debt [Member] \| CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Principal amount		1,750,000
Stated interest rate	6.50%
Outstanding debt	$ 1,748,098	1,747,795
Principal Amount		1,750,000
Secured Debt [Member] \| CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount		1,100,000
Stated interest rate	4.125%
Outstanding debt	$ 1,096,499	1,096,077
Principal Amount		1,100,000
Secured Debt [Member] \| CSC Holdings 3.375% Notes due February 15, 2031
Debt Instrument [Line Items]
Principal amount		1,000,000
Stated interest rate	3.375%
Outstanding debt	$ 997,556	997,258
Principal Amount		1,000,000
Secured Debt [Member] \| Cablevision Lightpath LLC 3.875% Notes due September 15, 2027
Debt Instrument [Line Items]
Principal amount		450,000
Stated interest rate	3.875%
Outstanding debt	$ 444,410	443,046
Principal Amount		450,000
Secured Debt [Member] \| CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount		1,500,000
Stated interest rate	4.50%
Outstanding debt	$ 1,495,598	1,495,144
Principal Amount		1,500,000
Secured Debt [Member] \| CSC Holdings 11.250% Senior Guaranteed Notes due May 15, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,000,000	0
Stated interest rate	11.25%
Outstanding debt	$ 994,072	0
Principal Amount	1,000,000	0
Long-term Debt
Debt Instrument [Line Items]
Principal amount	24,767,198	24,588,732
Long-term debt, net of current maturities	24,715,554	24,512,656
Principal Amount	$ 24,767,198	$ 24,588,732

DEBT - Schedule of Exchange Agr

DEBT - Schedule of Exchange Agreement (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Principal amount	$ 25,126,605	$ 26,676,545

DEBT - CSC Holdings Credit Faci

DEBT - CSC Holdings Credit Facilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Principal amount	$ 25,126,605	$ 26,676,545
Gain (Loss) on Extinguishment of Debt	(4,393)	575	$ 51,712
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
Repayment of debt	2,688,009	4,469,727	4,870,108
CSC Holdings
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt	(4,393)	575	51,712
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
Repayment of debt	$ 2,688,009	4,469,727	$ 4,870,108
5.5% Notes due April 15, 2027 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount		1,310,000
Stated interest rate	5.50%
CSC Credit Facilities
Debt Instrument [Line Items]
Percentage of proceeds from asset sales required to pay down term loans	100%
Percentage of excess cash flow required when minimum leverage ratio is not met	50%
Percentage of excess cash flow required to pay down term loans when minimum leverage ratio is fulfilled	0%
Minimum debt leverage ratio required for zero percent of excess cash flow obligation to prepay debt	4.5
Line of credit facility, covenant, leverage ratio	5
Secured Debt [Member] \| Synthetic LIBOR Rate (three months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.26161%
Secured Debt [Member] \| CSC Holdings Revolving Credit Facility \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Secured Debt [Member] \| Incremental Term Loan B-3
Debt Instrument [Line Items]
Principal amount	$ 521,744	527,014
Secured Debt [Member] \| Incremental Term Loan B-5
Debt Instrument [Line Items]
Principal amount	2,887,500	2,917,500
Secured Debt [Member] \| CSC Holdings Term Loan B
Debt Instrument [Line Items]
Principal amount	1,520,483	1,535,842
Line of credit facility, periodic payment amount	3,840
Secured Debt [Member] \| Incremental Term Loan B-6
Debt Instrument [Line Items]
Principal amount	1,986,928	2,001,942
Secured Debt [Member] \| Cablevision Lightpath Term B Loan
Debt Instrument [Line Items]
Principal amount	$ 582,000	588,000		$ 600,000
Debt discount rate				99.50%
Secured Debt [Member] \| Cablevision Lightpath Term B Loan \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Secured Debt [Member] \| Cablevision Lightpath Term B Loan \| Alternate base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Secured Debt [Member] \| CSC Holdings Term Loan B-6
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	$ 5,005
Revolving Credit Facility \| CSC Holdings Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	2,475,000
Principal amount	825,000	$ 1,575,000
Proceeds from long-term debt	1,700,000
Repayments of line of credit	2,450,000
Line of credit facility, remaining borrowing capacity	$ 1,516,488

DEBT - Cequel Credit Facilities

DEBT - Cequel Credit Facilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Line of Credit Facility [Line Items]
Gain (Loss) on Extinguishment of Debt	$ (4,393)	$ 575	$ 51,712
Principal amount	$ 25,126,605	$ 26,676,545

DEBT - Credit Facilities Outsta

DEBT - Credit Facilities Outstanding (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt	$ 25,074,961	$ 26,587,733
CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Stated interest rate	7.712%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475,000
Credit facility, Carrying Value	821,632	1,570,730
Letters of credit outstanding	133,512
Line of credit facility, remaining borrowing capacity	$ 1,516,488
CSC Holdings Term Loan B \| Secured Debt [Member]
Debt Instrument [Line Items]
Stated interest rate	7.726%
Credit facility, Carrying Value	$ 1,518,530	1,532,644
Incremental Term Loan B-3 \| Secured Debt [Member]
Debt Instrument [Line Items]
Stated interest rate	7.726%
Credit facility, Carrying Value	$ 520,988	525,883
Incremental Term Loan B-5 \| Secured Debt [Member]
Debt Instrument [Line Items]
Stated interest rate	7.976%
Credit facility, Carrying Value	$ 2,876,131	$ 2,902,921

DEBT - Senior Guaranteed Notes

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal amount	$ 25,126,605	$ 26,676,545
Face Amount of Senior Debt and Senior Secured Debt	8,660,000	7,660,000
Carrying amount of Senior Debt and Senior Secured Debt	8,635,472	7,638,443
Face amount of Credit Facility Debt	7,741,655	8,557,298
Carrying value of Credit Facility Debt	7,685,784	8,488,017
Finance Lease, Liability	228,356	244,595
Long-term debt	25,074,961	26,587,733
Long-Term Debt, Current Maturities	359,407	2,075,077
Finance Lease, Liability, Current	123,636	129,657
Long-term debt, net of current maturities	24,715,554	24,512,656
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	$ (51,712)
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,594	127,496
Long-term debt	174,594	127,496
Short-term Debt
Debt Instrument [Line Items]
Principal amount	359,407	2,087,813
Long-Term Debt, Current Maturities	359,407	2,075,077
Credit Facility [Domain]
Debt Instrument [Line Items]
Long-Term Debt, Current Maturities	61,177	71,643
Incremental Term Loan B-3 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 521,744	527,014
Stated interest rate	7.726%
Credit facility	$ 520,988	525,883
Incremental Term Loan B-5 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,887,500	2,917,500
Stated interest rate	7.976%
Credit facility	$ 2,876,131	2,902,921
Loans Payable
Debt Instrument [Line Items]
Principal amount	174,454	123,880
CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 825,000	1,575,000
Stated interest rate	7.712%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475,000
Credit facility	821,632	1,570,730
Repayments of line of credit	$ 2,450,000
Secured Debt [Member] \| 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount		1,310,000
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Carrying Amount	$ 1,307,709	1,307,091
Secured Debt [Member] \| 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal amount		1,000,000
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Carrying Amount	$ 995,940	995,078
Secured Debt [Member] \| CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Principal amount		1,750,000
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Carrying Amount	$ 1,748,098	1,747,795
Long-term Debt
Debt Instrument [Line Items]
Principal amount	24,767,198	24,588,732
Long-term debt, net of current maturities	24,715,554	24,512,656
Senior Notes \| 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount	$ 750,000
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Carrying Amount	$ 726,343
Senior Notes \| CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,045,882
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Carrying Amount	$ 1,044,933	1,044,752
Senior Notes \| Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 4,118
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Carrying Amount	$ 4,114	4,113
Senior Notes \| CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,250,000
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Carrying Amount	$ 2,275,915	$ 2,279,483

DEBT - Senior Guaranteed Notes,

DEBT - Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Apr. 25, 2023
Debt Instrument [Line Items]
Principal amount	$ 25,126,605,000	$ 26,676,545,000
Repayments of Debt	(2,688,009,000)	(4,469,727,000)	$ (4,870,108,000)
Gain (Loss) on Extinguishment of Debt	(4,393,000)	575,000	$ 51,712,000
Supply chain financing arrangement credit limit	$ 175,000,000
Secured Debt [Member] \| Synthetic LIBOR Rate (one month)
Debt Instrument [Line Items]
Basis spread on variable rate	0.11448%
Secured Debt [Member] \| Synthetic LIBOR Rate (three months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.26161%
Secured Debt [Member] \| Synthetic LIBOR Rate (six months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.42826%
CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 825,000,000	1,575,000,000
Line of Credit Facility, Maximum Borrowing Capacity	2,475,000,000
Line of credit facility, remaining borrowing capacity	1,516,488,000
Credit facility	$ 821,632,000	1,570,730,000
CSC Holdings Revolving Credit Facility \| Secured Debt [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Cablevision Lightpath Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 0
Line of Credit Facility, Maximum Borrowing Capacity	100,000,000
Credit facility	0
Incremental Term Loan B-3 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	521,744,000	527,014,000
Credit facility	$ 520,988,000	525,883,000
Cablevision Lightpath Term B Loan
Debt Instrument [Line Items]
Senior Debt Covenant, Leverage Ratio	6.75
Incurrence Test	4.75
Cablevision Lightpath Term B Loan \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 582,000,000	588,000,000		$ 600,000,000
Line of Credit Facility, Periodic Payment	1,500,000
Credit facility	$ 571,898,000	575,478,000
Debt discount rate				99.50%
Cablevision Lightpath Term B Loan \| Secured Debt [Member] \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Cablevision Lightpath Term B Loan \| Secured Debt [Member] \| Synthetic LIBOR Rate (one month)
Debt Instrument [Line Items]
Basis spread on variable rate	0.11448%
Cablevision Lightpath Term B Loan \| Secured Debt [Member] \| Synthetic LIBOR Rate (six months)
Debt Instrument [Line Items]
Basis spread on variable rate	0.42826%
Cablevision Lightpath Term B Loan \| Secured Debt [Member] \| Alternate base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Incremental Term Loan B-5 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,887,500,000	2,917,500,000
Credit facility	2,876,131,000	2,902,921,000
Incremental Term Loan B-6 \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	1,986,928,000	2,001,942,000
Credit facility	$ 1,948,503,000	1,955,839,000
Revolving Credit Facility \| Secured Debt [Member] \| Credit Adjustment Spread
Debt Instrument [Line Items]
Basis spread on variable rate	0.10%
CSC Holdings Term B-5 \| Secured Debt [Member]
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	$ 7,500,000
CSC Holdings Term B-5 \| Secured Debt [Member] \| libor
Debt Instrument [Line Items]
Basis spread on variable rate	2.50%
CSC Holdings Term Loan B \| Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,520,483,000	1,535,842,000
Line of credit facility, periodic payment amount	3,840,000
Credit facility	$ 1,518,530,000	1,532,644,000
CSC Holdings Term Loan B \| Secured Debt [Member] \| libor
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
CSC Holdings Term Loan B-3 \| Secured Debt [Member]
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	$ 1,318,000
CSC Holdings Term Loan B-3 \| Secured Debt [Member] \| libor
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
CSC Holdings Term Loan B-6 \| Secured Debt [Member]
Debt Instrument [Line Items]
Line of credit facility, periodic payment amount	$ 5,005,000
CSC Credit Facilities
Debt Instrument [Line Items]
Line of credit facility, covenant, leverage ratio	5
Loans Payable
Debt Instrument [Line Items]
Principal amount	$ 174,454,000	123,880,000
Proceeds from Loans	213,325,000
Repayments of Debt	(162,751,000)
Senior Notes \| CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,250,000,000
Stated interest rate	5.75%
Senior Notes \| CSC Holdings 4.625% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,325,000,000
Stated interest rate	4.625%
Senior Notes \| Cablevision Lightpath LLC 5.625% Notes due September 15, 2028
Debt Instrument [Line Items]
Principal amount		415,000,000
Stated interest rate	5.625%
Senior Notes \| Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 4,118,000
Stated interest rate	7.50%
Senior Notes \| CSC Holdings 5.000% Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount	$ 500,000,000
Stated interest rate	5%
Senior Notes \| CSC Holdings 11.2500% Senior Guaranteed Notes due May 15, 2028
Debt Instrument [Line Items]
Principal amount					$ 1,000,000,000
Stated interest rate					11.25%
Secured Debt [Member] \| 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount		1,310,000,000
Stated interest rate	5.50%
Secured Debt [Member] \| CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount		1,100,000,000
Stated interest rate	4.125%
Secured Debt [Member] \| CSC Holdings 3.375% Notes due February 15, 2031
Debt Instrument [Line Items]
Principal amount		1,000,000,000
Stated interest rate	3.375%
Secured Debt [Member] \| Cablevision Lightpath LLC 3.875% Notes due September 15, 2027
Debt Instrument [Line Items]
Principal amount		450,000,000
Stated interest rate	3.875%
Secured Debt [Member] \| CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount		1,500,000,000
Stated interest rate	4.50%
Long-term Debt
Debt Instrument [Line Items]
Principal amount	$ 24,767,198,000	$ 24,588,732,000

DEBT - Schedule of Gain (Loss)

DEBT - Schedule of Gain (Loss) on Debt Extinguishment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs	$ (4,393)	$ 575	$ 51,712
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	4,393	(575)	(51,712)
CSC Holdings
Debt Instrument [Line Items]
Loss on extinguishment of debt and write-off of deferred financing costs	(4,393)	575	51,712
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	$ 4,393	$ (575)	$ (51,712)

DEBT - Summary of Debt Maturiti

DEBT - Summary of Debt Maturities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Line of Credit Facility [Line Items]
2019	$ 1,001,242
2020	2,391,415
2021	567,223
2022	5,141,519
2023	5,371,850
Thereafter	10,425,000
Principal Amount	25,126,605	$ 26,676,545
Revolving Credit Facility \| CSC Holdings Revolving Credit Facility
Line of Credit Facility [Line Items]
Principal Amount	825,000	1,575,000
Secured Debt [Member] \| Incremental Term Loan B-6
Line of Credit Facility [Line Items]
2023	1,906,850
Principal Amount	$ 1,986,928	$ 2,001,942

DERIVATIVE CONTRACTS AND COLL_3

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 24, 2023
Derivative [Line Items]
Gain (loss) on derivative contracts, net	$ (166,489)	$ 425,815	$ 85,911
Gain (loss) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Long-term debt	25,074,961	26,587,733
Proceeds from Issuance of Secured Debt	38,902	0	185,105
Principal Amount	25,126,605	26,676,545
Investment Income, Dividend	11,598
Notes related to derivative contracts
Derivative [Line Items]
Gain (loss) on derivative contracts, net	(166,489)	425,815	$ 85,911
Collateralized Debt Obligations [Member]
Derivative [Line Items]
Long-term debt	0	1,746,281
Principal Amount	$ 0	$ 1,759,017
Receipt of cash from settlement of collateralized debt				$ 50,500

DERIVATIVE CONTRACTS AND COLL_4

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap $ in Thousands	Dec. 31, 2023 USD ($)
Derivative Instrument Maturity Date 2025, Fixed 1.53%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Fixed interest rate	1.53%
Derivative Instrument Maturity Date 2025, Fixed 1.625%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Fixed interest rate	1.625%
Derivative Instrument Maturity Date 2025, Fixed 1.458%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000
Fixed interest rate	1.458%
Derivative Instrument Maturity Date 2026, Fixed 2.9155%
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000
Fixed interest rate	2.9155%
Derivative Instrument
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000
Derivative Instrument Maturing 2026, Fixed 2.9025%
Derivative [Line Items]
Fixed interest rate	2.9025%
Derivative Instrument Maturing 2026, Fixed 2.161% \| Cablevision Lightpath
Derivative [Line Items]
Fixed interest rate	2.161%
Derivative Instrument Maturity Date 2026, Fixed 2.161% \| Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount	$ 300,000
Derivative Instrument Maturity Date 2025, Fixed 1.3281% Amended
Derivative [Line Items]
Fixed interest rate	1.3281%
Derivative Instrument Maturity Date 2025, Fixed 1.4223% Amended
Derivative [Line Items]
Fixed interest rate	1.4223%
Derivative Instrument Maturity Date 2025, Fixed 1.2567% Amended
Derivative [Line Items]
Fixed interest rate	1.2567%
Derivative Instrument Maturity Date 2025, Fixed 2.7129% Amended
Derivative [Line Items]
Fixed interest rate	2.7129%
Derivative Instrument Maturity Date 2025, Fixed 2.6999% Amended
Derivative [Line Items]
Fixed interest rate	2.6999%
Derivative Instrument Maturing 2026, Fixed 2.111% \| Cablevision Lightpath
Derivative [Line Items]
Fixed interest rate	2.11%
Derivative Instrument Maturity Date 2026, Fixed 3.523% \| Cablevision Lightpath
Derivative [Line Items]
Derivative, Notional Amount	$ 180,000
Fixed interest rate	3.523%

DERIVATIVE CONTRACTS AND COLL_5

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 112,914	$ 449,495
Interest Rate Swap \| Not Designated as Hedging Instruments \| Long-term derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	112,914	185,622
Prepaid forward contracts (a) \| Not Designated as Hedging Instruments \| Current derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 0	$ 263,873

DERIVATIVE CONTRACTS AND COLL_6

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Repayment of collateralized indebtedness and related derivative contracts	$ 0	$ 0	$ (185,105)
Proceeds from Issuance of Secured Debt	38,902	0	185,105
Long-term debt	25,074,961	26,587,733
Gain (loss) on derivative contracts, net	(166,489)	425,815	85,911
Gain (loss) on investments and sale of affiliate interests, net	180,237	(659,792)	(88,898)
Gain on interest rate swap contracts, net	32,664	271,788	92,735
Comcast stock
Derivative [Line Items]
Gain (loss) on investments and sale of affiliate interests, net	192,010	(659,792)	(88,917)
Notes related to derivative contracts
Derivative [Line Items]
Gain (loss) on derivative contracts, net	$ (166,489)	$ 425,815	$ 85,911

FAIR VALUE MEASUREMENT - Assets

FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Measured on a Recurring Basis - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Level I
Assets:
Investment securities	$ 0	$ 1,502,145
Prepaid forward contracts (a) \| Level II
Assets:
Derivative asset	0	263,873
Interest rate swap contracts \| Level II
Assets:
Derivative asset	112,914	185,622
Liabilities:
Business Combination, Contingent Consideration, Liability	2,037	8,383
Money market funds \| Level I
Assets:
Money market funds	$ 49,541	$ 141,137

FAIR VALUE MEASUREMENT - Fair V

FAIR VALUE MEASUREMENT - Fair Value of Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 24,846,605	$ 26,343,138
Estimated Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	21,215,467	21,690,052
CSC Holdings \| Credit facility debt \| Carrying Amount \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,257,682	9,063,495
CSC Holdings \| Credit facility debt \| Estimated Fair Value \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	8,323,654	9,145,298
CSC Holdings \| Collateralized indebtedness (b) \| Carrying Amount \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	0	1,746,281
CSC Holdings \| Collateralized indebtedness (b) \| Estimated Fair Value \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	0	1,731,771
CSC Holdings \| Senior guaranteed and senior secured notes \| Carrying Amount \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	9,079,882	8,081,489
CSC Holdings \| Senior guaranteed and senior secured notes \| Estimated Fair Value \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	7,784,288	6,154,075
CSC Holdings \| Senior notes \| Carrying Amount \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	7,334,447	7,324,238
CSC Holdings \| Senior notes \| Estimated Fair Value \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	4,932,931	4,531,300
CSC Holdings \| Notes payable and supply chain financing \| Carrying Amount \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	174,594	127,635
CSC Holdings \| Notes payable and supply chain financing \| Estimated Fair Value \| Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt, fair value	$ 174,594	$ 127,608

INCOME TAXES - Income Tax Expen

INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current expense (benefit):
Federal	$ 227,189	$ 133,329	$ 168,397
State	54,130	81,076	56,211
Foreign	105	128	(3)
Total current expense (benefit)	281,424	214,533	224,605
Deferred expense (benefit):
Federal	(210,378)	(43,797)	70,989
State	(16,547)	80,356	(30,108)
Foreign	10	(174)	(180)
Total deferred benefit	(226,915)	36,385	40,701
Income tax expense (benefit) before tax benefit relating to uncertain tax positions	54,509	250,918	265,306
Tax benefit relating to uncertain tax positions, adj	(14,981)	44,922	29,669
Income Tax Expense (Benefit)	39,528	295,840	294,975
CSC Holdings
Current expense (benefit):
Federal	227,189	133,329	179,032
State	62,312	88,068	56,211
Foreign	105	128	(3)
Total current expense (benefit)	289,606	221,525	235,240
Deferred expense (benefit):
Federal	(210,378)	(43,797)	70,989
State	(21,680)	69,676	(38,608)
Foreign	10	(174)	(180)
Total deferred benefit	(232,048)	25,705	32,201
Income tax expense (benefit) before tax benefit relating to uncertain tax positions	57,558	247,230	267,441
Tax benefit relating to uncertain tax positions, adj	(14,981)	44,922	29,669
Income Tax Expense (Benefit)	$ 42,577	$ 292,152	$ 297,110

INCOME TAXES - Effective Tax Ra

INCOME TAXES - Effective Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Federal tax expense at statutory rate	$ 24,899	$ 108,513	$ 274,240
State income taxes, net of federal impact	6,436	26,527	21,492
Minority interest	(5,494)	(5,914)	(5,092)
Changes in the valuation allowance	13,847	20,176	13,573
Change in New York state rate to measure deferred taxes, net of federal impact	0	112,117	0
Other changes in the state rates used to measure deferred taxes, net of federal impact	23,909	(9,603)	(6,924)
Tax expense (benefit) relating to uncertain tax positions	14,311	(36,281)	(24,580)
Tax credits	4,201	3,544	2,500
Excess tax deficiencies (benefits) related to share-based compensation including non-deductible carried unit plans	11,696	10,321	(2,602)
Non-deductible officers compensation	3,934	4,916	7,201
Foreign losses of disregarded entities	(6,097)	(6,352)	0
Business dispositions	(46,591)	0	(12,643)
Goodwill impairment	34,241	0	0
Other permanent differences		0	(22,613)
Other, net	(2,740)	2,402	6,263
Income tax expense	39,528	295,840	294,975
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	326	354
Research and Development Expense	33,427	22,292
Prepaid Expense and Other Assets, Current	174,859	130,684
Other Accrued Liabilities, Current	470,096	278,580
Related Party
Prepaid Expense and Other Assets, Current	407	572
Other Accrued Liabilities, Current	71,523	20,857
Altice Management Americas \| Related Party
Prepaid Expense and Other Assets, Current	137	529
Other Related Party \| Related Party
Prepaid Expense and Other Assets, Current	270	43
Other Accrued Liabilities, Current	25,216	1,646
Altice Management International \| Related Party
Other Accrued Liabilities, Current	46,307	19,211
CSC Holdings
Federal tax expense at statutory rate	24,899	108,513	274,240
State income taxes, net of federal impact	9,842	28,768	13,973
Minority interest	(5,494)	(5,914)	(5,092)
Changes in the valuation allowance	14,099	15,494	12,793
Change in New York state rate to measure deferred taxes, net of federal impact	0	112,117	0
Other changes in the state rates used to measure deferred taxes, net of federal impact	23,300	(10,849)	(7,125)
Tax expense (benefit) relating to uncertain tax positions	(14,311)	(36,281)	(24,580)
Tax credits	4,201	3,544	2,500
Excess tax deficiencies (benefits) related to share-based compensation including non-deductible carried unit plans	11,696	10,321	(2,602)
Non-deductible officers compensation	3,934	4,916	7,201
Foreign losses of disregarded entities	(6,097)	(6,352)	0
Business dispositions	(46,591)	0	(12,643)
Goodwill impairment	34,241	0	0
Other permanent differences	0	0	(22,613)
Other, net	(2,740)	2,401	16,898
Income tax expense	42,577	292,152	$ 297,110
Prepaid Expense and Other Assets, Current	174,859	130,684
Other Accrued Liabilities, Current	470,097	278,580
CSC Holdings \| Related Party
Prepaid Expense and Other Assets, Current	407	572
Other Accrued Liabilities, Current	$ 71,523	$ 20,857

INCOME TAXES - Narrative (Detai

INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
INCOME TAXES - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Revaluation of state deferred taxes and uncertain tax position reserve	$ 157,300
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	326	$ 354
Research and Development Expense	$ 33,427	$ 22,292
Alternative Minimum Tax Credit receivable			$ 48,645
Increase (Decrease) in Income Taxes Receivable			$ 12,161
Percentage of subsidiaries that file tax return	80%
Cablevision Lightpath \| Cablevision Lightpath
Business Acquisition [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	49.99%
Newsday
Business Acquisition [Line Items]
Ownership percentage			1%
Newsday
Business Acquisition [Line Items]
Recognized Capital Tax Losses			$ 235,316
i24 News S.a.r.l
Business Acquisition [Line Items]
Recognized Capital Tax Losses			$ 104,171

INCOME TAXES - Deferred Tax Ass

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)

INCOME TAXES - Unrecognized Tax

INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Contingency [Line Items]
Unrecognized Tax Benefits	$ 53,010	$ 70,593	$ 25,296	$ 1,301
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions		871
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions	18,714		637
Increases related to current year tax positions	1,131	44,426	24,632
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	1,475	9,683	$ 6,159
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	18,264	16,789
Income tax benefit if prevail on all uncertain tax positions.	$ 40,961
Effective Income Tax Rate Reconciliation, Opportunity Zones and i24, Amount		$ 35,256

SHARE-BASED COMPENSATION - Narr

SHARE-BASED COMPENSATION - Narrative (Details) - USD ($)	12 Months Ended
SHARE-BASED COMPENSATION - Narrative (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 47,926,000	$ 159,985,000	$ 98,296,000
Share based compensation - Unrecognized deferred compensation cost	117,585,000
Amount of deferred cash-dominated award				$ 10
Carry Unit Plan \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	30,724,000	0	804,000
Share based compensation - Unrecognized deferred compensation cost	46,937,000
2017 LTIP \| Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	33,809,000	$ 63,458,000	$ 1,120,000
Share based compensation - Unrecognized deferred compensation cost	$ 57,546,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	19,975,943	3,597,775	6,621,639
2017 LTIP \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Share based compensation expense	$ (3,850,000)	$ 86,307,000	$ 87,697,000
Share based compensation - Unrecognized deferred compensation cost	$ 6,659,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	640	7,888,472	18,192,257
2017 LTIP \| Stock options \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33%
2019 LTIP [Member] \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
2019 LTIP [Member] \| Restricted Stock \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50%
2019 LTIP [Member] \| Restricted Stock \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25%
2019 LTIP [Member] \| Restricted Stock \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25%
2021 Lightpath Incentive Plan \| Class A-2 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)	350,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	273,538
2017 LTIP 4 Year Award \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
2017 LTIP 4 Year Award \| Stock options \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50%
2017 LTIP 4 Year Award \| Stock options \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25%
2017 LTIP 4 Year Award \| Stock options \| Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	25%
2017 LTIP 3 Year Award \| Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
2017 LTIP 3 Year Award \| Stock options \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33%
2017 Amended LTIP \| Share-Based Payment Arrangement
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)	89,879,291

SHARE-BASED COMPENSATION - Stoc

SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Shares Under Option
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Aggregate Intrinsic Value, Outstanding	$ 0	$ 184	$ 6,801	$ 457,608
Weighted Average Exercise Price Per Share
Options outstanding, Weighted Average Remaining Contractual Term (in years)	5 years 11 months 23 days	7 years 8 months 23 days	8 years 3 months 14 days	8 years 8 months 8 days
Options exercisable, Weighted Average Remaining Contractual Term (in years)	5 years 2 months 1 day
Options exercisable, Aggregate Intrinsic Value	$ 0
Exercised, weighted average exercise price per share (in dollars per share)			$ 17.47
Share based compensation expense	47,926	$ 159,985	$ 98,296
Share based compensation - Unrecognized deferred compensation cost	$ 117,585
Number of restricted stock units created in connection with Exchange Offer	3,430,433
2017 LTIP
Weighted Average Exercise Price Per Share
Beginning balance (in dollars per share)	$ 20.27	$ 22.51	$ 25.52
Granted (in dollars per share)	4.69	9.30	16.87
Forfeited (in dollars per share)	21.94	23.84	28.02
Ending balance (in dollars per share)	19.55	$ 20.27	$ 22.51	$ 25.52
Options exercisable (in dollars per share)	22.76
Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Tendered and Canceled in Period, Weighted Average Exercise Price	$ 20.72
2017 LTIP \| Time Vesting
Shares Under Option
Beginning balance (in shares)	51,075,675	50,998,816	37,062,146
Granted (in shares)	640	7,888,472	18,192,257
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period			1,368,156
Forfeited (in shares)	(3,525,176)	(7,811,613)	(2,887,431)
Ending balance (in shares)	23,535,631	51,075,675	50,998,816	37,062,146
Options exercisable (in shares)	17,931,371
Weighted Average Exercise Price Per Share
Share based compensation expense	$ (3,850)	$ 86,307	$ 87,697
Expected time (in years) unrecognized compensation costs relating to share based awards will be recognized	2 years 7 months 24 days
Share based compensation - Unrecognized deferred compensation cost	$ 6,659
share-based compensation arrangement, number of shares tendered and canceled	(24,015,508)
2017 LTIP \| Performance Based Vesting
Weighted Average Exercise Price Per Share
Share based compensation expense	$ (12,757)	$ 10,220	$ 8,675
Share based compensation - Unrecognized deferred compensation cost	$ 6,443
2017 LTIP \| Performance Units [Member]
Weighted Average Exercise Price Per Share
Expected time (in years) unrecognized compensation costs relating to share based awards will be recognized	2 years 1 month 6 days

SHARE-BASED COMPENSATION - Fair

SHARE-BASED COMPENSATION - Fair Value Assumptions For Stock Options (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	3.53%	3.42%	1.36%
Expected life (in years)	5 years 8 months 15 days	6 years 2 months 26 days	6 years 7 days
Dividend yield	0%	0%	0%
Volatility	50.10%	41.79%	35.80%
Share based compensation - Unrecognized deferred compensation cost	$ 117,585
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 2.42	$ 3.76	$ 6.42
Share based compensation expense	$ 47,926	$ 159,985	$ 98,296
Amount of deferred cash denominated awards issued in connection with Exchange Offer	34,309
Amount of unamortized compensation cost related to the canceled options recognized	$ 33,475
Number of options exchanged in connection with Exchange Offer	24,015,508
Incremental compensation cost associated with the replacement awards	$ 34,000
Performance Based Vesting \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation - Unrecognized deferred compensation cost	6,443
Share based compensation expense	$ (12,757)	$ 10,220	$ 8,675
Performance Units [Member] \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 5.52
Expected time (in years) unrecognized compensation costs relating to share based awards will be recognized	2 years 1 month 6 days

SHARE-BASED COMPENSATION (Detai

SHARE-BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 47,926	$ 159,985	$ 98,296
Share based compensation - Unrecognized deferred compensation cost	117,585
Grant date fair value of award units	$ 32,687
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 2.42	$ 3.76	$ 6.42
Restricted Stock Units \| Carry Unit Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 30,724	$ 0	$ 804
Share based compensation - Unrecognized deferred compensation cost	46,937
Restricted Stock Units \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	33,809	$ 63,458	$ 1,120
Share based compensation - Unrecognized deferred compensation cost	$ 57,546
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	19,975,943	3,597,775	6,621,639
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 53,510
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 3.23
Stock options \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ (3,850)	$ 86,307	$ 87,697
Share based compensation - Unrecognized deferred compensation cost	$ 6,659
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	640	7,888,472	18,192,257
Stock options \| 2017 LTIP \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33%
Stock options \| 2017 LTIP 4 Year Award \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	50%
Stock options \| 2017 LTIP 3 Year Award \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage	33%
Performance Based Vesting \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ (12,757)	$ 10,220	$ 8,675
Share based compensation - Unrecognized deferred compensation cost	$ 6,443
Class A-1 management incentive units \| 2021 Lightpath Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)	650,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	536,140
Class A-2 management incentive units \| 2021 Lightpath Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards authorized (in shares)	350,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	273,538
Performance Units [Member] \| 2017 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 5.52

Performance based awards (Detai

Performance based awards (Details) - Performance Based Vesting - 2017 LTIP - shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Non-option equity instruments, outstanding (shares)	3,767,753	5,179,359	6,361,894	7,315,360
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted			160,647
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures	(1,411,606)	(1,182,535)	(1,114,113)

Restricted stock units (Details

Restricted stock units (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Number of restricted stock units created in connection with Exchange Offer	3,430,433
Restricted Stock Units \| 2017 LTIP
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	19,975,943	3,597,775	6,621,639
Non-option equity instruments, outstanding (shares)	22,493,888	7,495,388	6,617,837	0
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Granted	16,545,510
Vested (in shares)	(1,913,348)	(2,141,449)
Share-Based Compensation Arrangement by Share-Based Payment Award, Non-Option Equity Instruments, Forfeitures	(3,064,095)	(578,775)	(3,802)
Stock Issued During Period, Value, Restricted Stock Award, Gross	$ 53,510
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 3.23
Number of restricted stock units created in connection with Exchange Offer	3,430,433
Share-Based Payment Arrangement, Option \| 2017 Amended LTIP \| Tranche One
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Award vesting percentage	33%
Stock options \| 2017 LTIP
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	640	7,888,472	18,192,257
Stock options \| 2017 LTIP \| Tranche One
Share-Based Payment Arrangement, Option, Exercise Price Range [Line Items]
Award vesting percentage	33%

AFFILIATE AND RELATED PARTY T_3

AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details)	Dec. 31, 2021
Newsday
Related Party Transaction [Line Items]
Ownership percentage	1%

AFFILIATE AND RELATED PARTY T_4

AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Revenues	$ 9,237,064	$ 9,647,659	$ 10,090,849
Operating expenses:
Shares repurchased (in shares)	285,507,773		23,593,728
Value of shares repurchased	$ 7,808,698		$ 804,928
Cost of Goods and Services Sold	(3,029,842)	(3,205,638)	(3,382,129)
Other Cost and Expense, Operating	(2,646,258)	(2,735,469)	(2,379,765)
Related Party
Related Party Transaction [Line Items]
Revenues	1,471	2,368	13,238
Operating expenses:
Operating expenses, net	(70,857)	(26,531)	(29,156)
Other credits	0	48	0
Capital Expenditures	122,384	91,382	54,163
Cost of Goods and Services Sold	(13,794)	(14,321)	(17,167)
Other Cost and Expense, Operating	(57,063)	(12,210)	(11,989)
Operating Costs and Expenses	(69,386)	(24,115)	(15,918)
CSC Holdings
Related Party Transaction [Line Items]
Revenues	9,237,064	9,647,659	10,090,849
Operating expenses:
Cost of Goods and Services Sold	(3,029,842)	(3,205,638)	(3,382,129)
Other Cost and Expense, Operating	$ (2,646,258)	$ (2,735,469)	$ (2,379,765)

AFFILIATE AND RELATED PARTY T_5

AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Related Party Transaction [Line Items]
Treasury Stock, Shares, Acquired		18,921
Payments for Repurchase of Common Stock	$ 0	$ 0	$ 804,928
Share based compensation expense	47,926	159,985	$ 98,296
Other Accrued Liabilities, Current	$ 470,096	$ 278,580
Stock options \| 2017 LTIP
Related Party Transaction [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	640	7,888,472	18,192,257
Share based compensation expense	$ (3,850)	$ 86,307	$ 87,697
Stock options \| 2017 LTIP \| Tranche One
Related Party Transaction [Line Items]
Award vesting percentage	33%
Restricted Stock \| 2019 LTIP [Member]
Related Party Transaction [Line Items]
Vesting period	4 years
Restricted Stock \| 2019 LTIP [Member] \| Tranche One
Related Party Transaction [Line Items]
Award vesting percentage	50%
Restricted Stock \| 2019 LTIP [Member] \| Tranche Two
Related Party Transaction [Line Items]
Award vesting percentage	25%
Restricted Stock \| 2019 LTIP [Member] \| Tranche Three
Related Party Transaction [Line Items]
Award vesting percentage	25%
CSC Holdings
Related Party Transaction [Line Items]
Cash distributions	$ 1,793	170	763,435
Other Accrued Liabilities, Current	470,097	278,580
CSC Holdings \| Additional Paid-in Capital [Member]
Related Party Transaction [Line Items]
Cash distributions			$ 763,435
Related Party
Related Party Transaction [Line Items]
Other Accrued Liabilities, Current	71,523	20,857
Related Party \| CSC Holdings
Related Party Transaction [Line Items]
Other Accrued Liabilities, Current	71,523	20,857
Related Party \| Other Related Party
Related Party Transaction [Line Items]
Other Accrued Liabilities, Current	25,216	1,646
Related Party \| Altice Management International
Related Party Transaction [Line Items]
Other Accrued Liabilities, Current	$ 46,307	$ 19,211

COMMITMENTS AND CONTINGENCIES -

COMMITMENTS AND CONTINGENCIES - Narrative (Details)	Dec. 31, 2023
Warner Matter
Loss Contingencies [Line Items]
Amount of copyrighted works infringed on	10,700
BMG Matter
Loss Contingencies [Line Items]
Amount of copyrighted works infringed on	8,100,000

COMMITMENTS AND CONTINGENCIES_2

COMMITMENTS AND CONTINGENCIES - Future Cash Payments and Commitments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Loss Contingencies [Line Items]
Total contractual obligation, due in years 4 and 5	$ 288,157
Total contractual obligation, due in years 2 and 3	2,806,514
Total contractual obligation, due after year 5	138,503
Total contractual obligation	6,019,054
Total contractual obligation, due in year 1	2,785,880
Operating Leases, Pole Rent		$ 40,277
Pole Rentals
Loss Contingencies [Line Items]
Operating Leases, Pole Rent	40,868		$ 37,545
Purchase Commitment
Loss Contingencies [Line Items]
Total contractual obligation, due in years 4 and 5	288,157
Total contractual obligation, due in years 2 and 3	2,805,204
Total contractual obligation, due after year 5	7,786
Total contractual obligation	5,809,702
Total contractual obligation, due in year 1	2,708,555
Guarantees
Loss Contingencies [Line Items]
Total contractual obligation, due in years 4 and 5	0
Total contractual obligation, due in years 2 and 3	0
Total contractual obligation, due after year 5	0
Total contractual obligation	75,840
Total contractual obligation, due in year 1	75,840
Credit facility debt
Loss Contingencies [Line Items]
Total contractual obligation, due in years 4 and 5	0
Total contractual obligation, due in years 2 and 3	1,310
Total contractual obligation, due after year 5	130,717
Total contractual obligation	133,512
Total contractual obligation, due in year 1	$ 1,485

INTERIM FINANCIAL INFORMATION (

INTERIM FINANCIAL INFORMATION (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Quarterly Financial Information [Line Items]
Revenues	$ 9,237,064	$ 9,647,659	$ 10,090,849
Operating expenses	(7,535,124)	(7,845,065)	(7,566,222)
Operating Income (Loss), Total	1,701,940	1,802,594	2,524,627
Net income	79,037	220,889	1,010,932
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Net income attributable to Altice USA stockholders	53,198	194,563	990,311
Impact from changes in tax rates	23,909	(9,603)	(6,924)
Operating Income (Loss)	1,701,940	1,802,594	2,524,627
Net income attributable to noncontrolling interests	25,839	26,326	20,621
Net income attributable to CSC Holdings, LLC sole member	53,198	194,563	990,311
Other changes in the state rates used to measure deferred taxes, net of federal impact	$ 23,909	$ (9,603)	$ (6,924)
Basic income per share	$ 0.12	$ 0.43	$ 2.16
Diluted income per share	$ 0.12	$ 0.43	$ 2.14
CSC Holdings
Quarterly Financial Information [Line Items]
Revenues	$ 9,237,064	$ 9,647,659	$ 10,090,849
Operating expenses	(7,535,124)	(7,845,065)	(7,566,222)
Operating Income (Loss), Total	1,701,940	1,802,594	2,524,627
Net income	75,988	224,577	1,008,797
Comprehensive income attributable to noncontrolling interests	(25,839)	(26,326)	(20,621)
Net income attributable to Altice USA stockholders	50,149	198,251	988,176
Impact from changes in tax rates	23,300	(10,849)	(7,125)
Distributions to parent	1,793	170	763,435
Operating Income (Loss)	1,701,940	1,802,594	2,524,627
Net income attributable to noncontrolling interests	25,839	26,326	20,621
Net income attributable to CSC Holdings, LLC sole member	50,149	198,251	988,176
Other changes in the state rates used to measure deferred taxes, net of federal impact	23,300	(10,849)	(7,125)
Pay TV [Member]
Quarterly Financial Information [Line Items]
Revenues	3,072,011	3,281,306	3,526,205
Broadband [Member]
Quarterly Financial Information [Line Items]
Revenues	3,824,472	3,930,667	3,925,089
Telephony [Member]
Quarterly Financial Information [Line Items]
Revenues	300,198	332,406	404,813
Business Services and Wholesale [Member]
Quarterly Financial Information [Line Items]
Revenues	1,467,149	1,474,269	1,586,423
Mobile [Member]
Quarterly Financial Information [Line Items]
Revenues	77,012	61,832	51,281
Advertising and News [Member]
Quarterly Financial Information [Line Items]
Revenues	$ 447,742	$ 520,293	$ 550,667

SUBSEQUENT EVENTS (Details)

SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
SUBSEQUENT EVENTS (Details) - USD ($) $ in Thousands	Jan. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jan. 25, 2024
Principal Amount		$ 25,126,605	$ 26,676,545
Proceeds from long-term debt		$ 2,700,000	4,276,903	$ 4,410,000
5.25% Notes due June 1, 2024 \| Senior Notes
Stated interest rate		5.25%
Principal Amount		$ 750,000
Outstanding debt		726,343
CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Principal Amount		$ 825,000	1,575,000
CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2031 \| Secured Debt [Member]
Stated interest rate		4.50%
Principal Amount			1,500,000
Outstanding debt		$ 1,495,598	$ 1,495,144
Subsequent Event \| 5.25% Notes due June 1, 2024 \| Senior Notes
Stated interest rate					5.25%
Outstanding debt					$ 742,746
Subsequent Event \| CSC Holdings Revolving Credit Facility \| Revolving Credit Facility
Proceeds from long-term debt	$ 750,000
Subsequent Event \| CSC Holdings 11.750% Senior Guaranteed Notes due January 15, 2029 \| Secured Debt [Member]
Stated interest rate					11.75%
Principal Amount					$ 2,050,000