Altice USA (ATUS) 10-Q 28 Apr 22 2022 FY Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2022	Apr. 22, 2022
Document and Entity Information [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 31, 2022
Document Transition Report	false
Entity File Number	001-38126
Entity Interactive Data Current	Yes
Entity Registrant Name	Altice USA, Inc.
Entity Filer Category	Large Accelerated Filer
Document Fiscal Period Focus	FY
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		454,654,818
Entity Current Reporting Status	Yes
Entity Small Business	false
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
Title of 12(b) Security	Class A Common Stock, par value $0.01 per share
Trading Symbol	ATUS
Security Exchange Name	NYSE
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Amendment Flag	false
Entity Central Index Key	0001702780

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 195,648	$ 195,711
Restricted cash	264	264
Accounts receivable, trade (less allowance for doubtful accounts of $27,945 and $27,931)	383,103	406,952
Prepaid expenses and other current assets ($3,830 and $3,776 due from affiliates)	203,963	186,707
Total current assets	782,978	789,634
Property, plant and equipment, net of accumulated depreciation of $7,362,691 and $7,142,852	6,513,910	6,340,467
Operating Lease, Right-of-Use Asset	229,792	222,124
Investment securities pledged as collateral	2,011,164	2,161,937
Other assets	129,013	76,653
Amortizable intangibles, net of accumulated amortization of $5,198,304 and $5,051,149	2,055,028	2,202,001
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill	8,205,863	8,205,863
Total assets	33,144,103	33,215,034
Current Liabilities:
Accounts payable	999,501	1,023,045
Interest payable	213,641	244,934
Accrued employee related costs	110,777	124,941
Deferred revenue	110,882	94,943
Debt	969,413	917,313
Other current liabilities ($22,872 and $31,810 due to affiliates)	373,166	329,943
Total current liabilities	2,777,380	2,735,119
Other liabilities	155,243	159,082
Deferred tax liability	5,032,641	5,048,129
Liabilities under derivative contracts	90,952	276,933
Operating Lease, Liability, Noncurrent	243,035	237,226
Long-term debt, net of current maturities	25,471,418	25,629,447
Total liabilities	33,770,669	34,085,936
Commitments and contingencies (Note 14)
Stockholders' Deficiency:
Preferred stock, $0.01 par value, 100,000,000 shares authorized, no shares issued and outstanding	0	0
Paid-in capital	58,527	18,005
Accumulated deficit	(652,285)	(848,836)
Total stockholders' equity before accumulated other comprehensive Income and non-controlling interest	(589,212)	(826,285)
Treasury stock, at cost (20,209 and 20,887 Class A common shares at March 31, 2022 and December 31, 2021, respectively)	0	0
Accumulated other comprehensive income	8,170	6,497
Total Altice USA stockholders' deficiency	(581,042)	(819,788)
Noncontrolling interests	(45,524)	(51,114)
Total stockholders' deficiency	(626,566)	(870,902)
Total liabilities and stockholders' deficiency	33,144,103	33,215,034
Common Class A
Stockholders' Deficiency:
Common stock	2,703	2,703
Common Class B
Stockholders' Deficiency:
Common stock	1,843	1,843
Common Class C
Stockholders' Deficiency:
Common stock	$ 0	$ 0

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Assets [Abstract]
Accounts receivable, trade allowance for doubtful accounts	$ 27,945	$ 27,931
Due from Related Parties, Current	3,830	3,776
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(7,362,691)	(7,142,852)
Finite-Lived Intangible Assets, Accumulated Amortization	$ 5,198,304	$ 5,051,149
Stockholders' Deficiency:
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 issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Treasury Stock, Shares, Acquired	20,209
Other assets	$ 129,013	$ 76,653
Accumulated other comprehensive income	8,170	6,497
CSC Holdings
LIABILITIES AND STOCKHOLDERS' DEFICIENCY
Due to Affiliate, Current	22,872	31,810
Stockholders' Deficiency:
Other assets	129,013	76,653
Accumulated other comprehensive income	$ 8,170	$ 6,497
Common Class A
Stockholders' Deficiency:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	270,344,035	270,341,685
Common stock, shares outstanding (in shares)	270,323,826	270,320,798
Common Class B
Stockholders' Deficiency:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common stock, shares issued (in shares)	490,086,674
Common stock, shares outstanding (in shares)	184,330,992	184,333,342
Common Class C
Stockholders' Deficiency:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	4,000,000,000	4,000,000,000
Common stock, shares issued (in shares)	0	0
Common stock, shares outstanding (in shares)	0	0

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue (including revenue from affiliates of $638 and $3,406 respectively) (See Note 13)	$ 2,421,897	$ 2,478,821
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,618 and $2,228, respectively) (See Note 13)	828,793	851,864
Other operating expenses (including charges from affiliates of $3,095 and $3,179, respectively) (See Note 13)	641,906	580,433
Restructuring and other expense	3,378	3,209
Depreciation and amortization (including impairments)	435,349	434,857
Total operating expenses	1,909,426	1,870,363
Operating income	512,471	608,458
Other income (expense):
Interest expense, net	(303,362)	(316,312)
Gain on investments, net	(150,773)	73,453
Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments	101,074	(53,565)
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	123,147	75,653
Other income, net	2,430	2,859
Total other income (expense)	(227,484)	(217,912)
Income before income taxes	284,987	390,546
Income tax expense	(82,846)	(112,007)
Net income	202,141	278,539
Net income attributable to noncontrolling interests	(5,590)	(4,403)
Net income attributable to stockholders	$ 196,551	$ 274,136
Income per share:
Basic income per share	$ 0.43	$ 0.58
Basic weighted average shares outstanding	453,229	469,233
Diluted income per share	$ 0.43	$ 0.58
Diluted weighted average shares outstanding	453,229	475,448
Cash dividends declared per common share	$ 0	$ 0

CONSOLIDATED STATEMENTS OF OP_2

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue from affiliates	$ 638	$ 3,406
Programming and other direct costs from affiliates	4,618	2,228
Other operating expenses from affiliates	$ 3,095	$ 3,179

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 202,141	$ 278,539
Defined benefit pension plans
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss) Arising During Period, before Tax	2,504	8,648
Applicable income taxes	(661)	(2,292)
Defined benefit pension plans, net of income taxes	1,843	6,356
Foreign currency translation adjustment	(170)	619
Applicable income taxes	0	0
Foreign currency translation adjustment, net of income taxes	(170)	619
Other comprehensive income	1,673	6,975
Comprehensive income	203,814	285,514
Comprehensive income attributable to noncontrolling interests	(5,590)	(4,403)
Comprehensive income attributable to CSC Holdings, LLC's sole member	$ 198,224	$ 281,111

CONSOLIDATED STATEMENTS OF STOC

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Parent [Member]	Member's Deficiency	Accumulated Deficit	Treasury Stock	Accumulated Other Comprehensive Income	Noncontrolling Interests	Common Class ACommon Stock	Common Class BCommon Stock
Beginning balance at Dec. 31, 2020	$ (1,203,139)	$ (1,141,030)	$ 0	$ (985,641)	$ (163,866)	$ 3,646	$ (62,109)	$ 2,972	$ 1,859
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to stockholders	274,136	274,136		274,136
Net income attributable to noncontrolling interests	(4,403)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(6,356)	(6,356)				6,356
Foreign currency translation adjustment, net of income taxes	619	619				619
Share-based compensation expense (equity classified)	27,964	27,964		27,964
Redeemable equity vested	20,131	20,131		20,131
Change in redeemable equity	2,528	2,528		2,528
Class A shares acquired through share repurchase program and retired	(522,673)	(522,673)		(522,521)				(152)
Conversion of Class B to Class A shares								1	(1)
Issuance of common shares pursuant to employee long term incentive plan	2,044	2,044		2,037	6			1
Other	58	(4,244)		(4,244)			4,302
Ending balance at Mar. 31, 2021	(1,387,573)	(1,334,169)	0	(1,185,610)	(163,860)	10,621	(53,404)	2,822	1,858
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated deficit	(848,836)
Beginning balance at Dec. 31, 2021	(870,902)	(819,788)	18,005	(848,836)	0	6,497	(51,114)	2,703	1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income attributable to stockholders	196,551	196,551		196,551
Net income attributable to noncontrolling interests	(5,590)						(5,590)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	(1,843)	(1,843)				1,843
Foreign currency translation adjustment, net of income taxes	(170)	(170)				(170)
Share-based compensation expense (equity classified)	40,512	40,512	40,512	0
Conversion of Class B to Class A shares								0	0
Issuance of common shares pursuant to employee long term incentive plan	10	10	10	0	0			0
Ending balance at Mar. 31, 2022	(626,566)	$ (581,042)	$ 58,527	$ (652,285)	$ 0	$ 8,170	$ (45,524)	$ 2,703	$ 1,843
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accumulated deficit	$ (652,285)

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 202,141	$ 278,539
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization (including impairments)	435,349	434,857
Loss (gain) on derivative contracts, net	(101,074)	53,565
Amortization of deferred financing costs and discounts (premiums) on indebtedness	20,342	23,039
Share-based compensation expense	40,532	28,281
Deferred income taxes	(16,149)	29,165
Provision for doubtful accounts	14,737	11,133
Other	(287)	1,074
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	9,112	55,293
Prepaid expenses and other assets	(19,462)	(26,321)
Amounts due from and due to affiliates	(8,992)	4,627
Accounts payable and accrued liabilities	(13,477)	(29,696)
Deferred revenue	14,613	38,501
Liabilities related to interest rate swap contracts	(138,894)	(89,798)
Net cash provided by operating activities	600,219	749,622
Cash flows from investing activities:
Capital expenditures	(392,371)	(212,791)
Other, net	888	2,143
Net cash used in investing activities	(391,483)	(210,648)
Cash flows from financing activities:
Proceeds from long-term debt	150,000	150,000
Repayment of long-term debt	(329,688)	(225,863)
Proceeds from collateralized indebtedness and related derivative contracts, net	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	(185,105)
Principal payments on finance lease obligations	(28,941)	(18,330)
Purchase of shares of Altice USA Class A common stock, pursuant to a share repurchase program	0	(503,645)
Other	0	393
Net cash used in financing activities	(208,629)	(597,445)
Net increase (decrease) in cash and cash equivalents	107	(58,471)
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(170)	620
Net decrease in cash and cash equivalents	(63)	(57,851)
Cash, cash equivalents and restricted cash at beginning of year	195,975	278,686
Cash, cash equivalents and restricted cash at end of period	195,912	220,835
Operating Lease, Right-of-Use Asset, Amortization Expense	10,955	10,816
Loss (gain) on investments, net	$ 150,773	$ (73,453)

CSC HOLDINGS - CONSOLIDATED BAL

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Current Assets:
Cash and cash equivalents	$ 195,648	$ 195,711
Restricted cash	264	264
Accounts receivable, trade (less allowance for doubtful accounts of $27,945 and $27,931)	383,103	406,952
Prepaid expenses and other current assets ($3,830 and $3,776 due from affiliates)	203,963	186,707
Total current assets	782,978	789,634
Property, plant and equipment, net of accumulated depreciation of $7,362,691 and $7,142,852	6,513,910	6,340,467
Operating Lease, Right-of-Use Asset	229,792	222,124
Investment securities pledged as collateral	2,011,164	2,161,937
Other assets	129,013	76,653
Amortizable intangibles, net of accumulated amortization of $5,198,304 and $5,051,149	2,055,028	2,202,001
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill	8,205,863	8,205,863
Total assets	33,144,103	33,215,034
Current Liabilities:
Accounts payable	999,501	1,023,045
Interest payable	213,641	244,934
Accrued employee related costs	110,777	124,941
Deferred revenue	110,882	94,943
Debt	969,413	917,313
Other current liabilities ($22,872 and $31,810 due to affiliates)	373,166	329,943
Total current liabilities	2,777,380	2,735,119
Other liabilities	155,243	159,082
Deferred tax liability	5,032,641	5,048,129
Liabilities under derivative contracts	90,952	276,933
Operating Lease, Liability, Noncurrent	243,035	237,226
Long-term debt, net of current maturities	25,471,418	25,629,447
Total liabilities	33,770,669	34,085,936
Commitments and contingencies (Note 14)
Limited Liability Company (LLC) Members' Equity [Abstract]
Accumulated other comprehensive income (loss)	8,170	6,497
Noncontrolling interests	(45,524)	(51,114)
Total liabilities and stockholders' deficiency	33,144,103	33,215,034
CSC Holdings
Current Assets:
Cash and cash equivalents	193,850	193,154
Restricted cash	264	264
Accounts receivable, trade (less allowance for doubtful accounts of $27,945 and $27,931)	383,103	406,952
Prepaid expenses and other current assets ($3,830 and $3,776 due from affiliates)	203,205	186,707
Total current assets	780,422	787,077
Property, plant and equipment, net of accumulated depreciation of $7,362,691 and $7,142,852	6,513,910	6,340,467
Operating Lease, Right-of-Use Asset	229,792	222,124
Investment securities pledged as collateral	2,011,164	2,161,937
Other assets	129,013	76,653
Amortizable intangibles, net of accumulated amortization of $5,198,304 and $5,051,149	2,055,028	2,202,001
Indefinite-lived cable television franchises	13,216,355	13,216,355
Goodwill	8,205,863	8,205,863
Total assets	33,141,547	33,212,477
Current Liabilities:
Accounts payable	999,501	1,023,045
Interest payable	213,641	244,934
Accrued employee related costs	110,777	124,941
Deferred revenue	110,882	94,943
Debt	969,413	917,313
Other current liabilities ($22,872 and $31,810 due to affiliates)	373,166	329,944
Total current liabilities	2,777,380	2,735,120
Other liabilities	155,243	159,082
Deferred tax liability	5,051,955	5,067,442
Liabilities under derivative contracts	90,952	276,933
Operating Lease, Liability, Noncurrent	243,035	237,226
Long-term debt, net of current maturities	25,471,418	25,629,447
Total liabilities	33,789,983	34,105,250
Limited Liability Company (LLC) Members' Equity [Abstract]
Member's Deficiency	(611,082)	(848,156)
Accumulated other comprehensive income (loss)	8,170	6,497
Total member's deficiency	(602,912)	(841,659)
Noncontrolling interests	(45,524)	(51,114)
Total Deficiency	(648,436)	(892,773)
Total liabilities and stockholders' deficiency	$ 33,141,547	$ 33,212,477

CSC HOLDINGS - CONSOLIDATED B_2

CSC HOLDINGS - CONSOLIDATED BALANCE SHEETS (Parentheticals) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Accounts receivable, trade allowance for doubtful accounts	$ 27,945	$ 27,931
Due from Related Parties, Current	3,830	3,776
Property, plant and equipment, accumulated depreciation	7,362,691	7,142,852
Amortizable intangible assets, accumulated amortization	5,198,304	5,051,149
Other assets	129,013	76,653
CSC Holdings
Due to Affiliate, Current	$ 22,872	$ 31,810
Members' Equity	100	100
Common Unit, Outstanding	100	100
Other assets	$ 129,013	$ 76,653
Member's Deficiency	(611,082)	(848,156)
Total Deficiency	(648,436)	(892,773)
Membership equity before noncontrolling interest	$ (602,912)	$ (841,659)

CSC HOLDINGS - CONSOLIDATED STA

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenue (including revenue from affiliates of $638 and $3,406 respectively) (See Note 13)	$ 2,421,897	$ 2,478,821
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,618 and $2,228, respectively) (See Note 13)	828,793	851,864
Other operating expenses (including charges from affiliates of $3,095 and $3,179, respectively) (See Note 13)	641,906	580,433
Restructuring and other expense	3,378	3,209
Total operating expenses	1,909,426	1,870,363
Operating income	512,471	608,458
Other income (expense):
Interest expense	(303,362)	(316,312)
Gain on investments, net	(150,773)	73,453
Loss on equity derivative contracts, net	101,074	(53,565)
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	123,147	75,653
Other income, net	2,430	2,859
Total other income (expense)	(227,484)	(217,912)
Income before income taxes	284,987	390,546
Income tax expense	(82,846)	(112,007)
Net income	202,141	278,539
Comprehensive income attributable to noncontrolling interests	(5,590)	(4,403)
Net income attributable to CSC Holdings' sole member	196,551	274,136
Depreciation and amortization (including impairments)	435,349	434,857
CSC Holdings
Revenue (including revenue from affiliates of $638 and $3,406 respectively) (See Note 13)	2,421,897	2,478,821
Operating expenses:
Programming and other direct costs (including charges from affiliates of $4,618 and $2,228, respectively) (See Note 13)	828,793	851,864
Other operating expenses (including charges from affiliates of $3,095 and $3,179, respectively) (See Note 13)	641,906	580,433
Restructuring and other expense	3,378	3,209
Total operating expenses	1,909,426	1,870,363
Operating income	512,471	608,458
Other income (expense):
Interest expense	(303,362)	(316,312)
Gain on investments, net	(150,773)	73,453
Loss on equity derivative contracts, net	101,074	(53,565)
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	123,147	75,653
Other income, net	2,430	2,859
Total other income (expense)	(227,484)	(217,912)
Income before income taxes	284,987	390,546
Income tax expense	(82,846)	(112,007)
Net income	202,141	278,539
Comprehensive income attributable to noncontrolling interests	(5,590)	(4,403)
Net income attributable to CSC Holdings' sole member	196,551	274,136
Depreciation and amortization (including impairments)	$ 435,349	$ 434,857

CSC HOLDINGS - CONSOLIDATED S_2

CSC HOLDINGS - CONSOLIDATED STATEMENT OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue from affiliates	$ 638	$ 3,406
Programming and other direct costs from affiliates	4,618	2,228
Related Party Transaction, Other Operating Expense	$ 3,095	$ 3,179

CSC HOLDINGS - CONDENSED CONSOL

CSC HOLDINGS - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Net income	$ 202,141	$ 278,539
Defined benefit pension and postretirement plans:
Defined benefit pension plans	2,504	8,648
Applicable income taxes	(661)	(2,292)
Defined benefit pension plans, net of income taxes	1,843	6,356
Foreign currency translation adjustment	(170)	619
Applicable income taxes	0	0
Foreign currency translation adjustment, net	(170)	619
Other comprehensive income	1,673	6,975
Comprehensive income	203,814	285,514
Comprehensive income attributable to noncontrolling interests	(5,590)	(4,403)
Comprehensive income attributable to CSC Holdings, LLC's sole member	198,224	281,111
CSC Holdings
Net income	202,141	278,539
Defined benefit pension and postretirement plans:
Defined benefit pension plans	2,504	8,648
Applicable income taxes	(661)	(2,292)
Defined benefit pension plans, net of income taxes	1,843	6,356
Foreign currency translation adjustment	(170)	619
Applicable income taxes	0	0
Foreign currency translation adjustment, net	(170)	619
Other comprehensive income	1,673	6,975
Comprehensive income	203,814	285,514
Comprehensive income attributable to noncontrolling interests	(5,590)	(4,403)
Comprehensive income attributable to CSC Holdings, LLC's sole member	$ 198,224	$ 281,111

CSC HOLDINGS - CONSOLIDATED S_3

CSC HOLDINGS - CONSOLIDATED STATEMENT OF MEMBER'S EQUITY - USD ($) $ in Thousands	Total	CSC Holdings	Total Member's Deficiency	Total Member's DeficiencyCSC Holdings	Noncontrolling Interests	Noncontrolling InterestsCSC Holdings	Member's Deficiency	Member's DeficiencyCSC Holdings	Accumulated Deficit	Accumulated Other Comprehensive Income	Accumulated Other Comprehensive IncomeCSC Holdings
Accumulated other comprehensive income											$ 3,646
Membership equity before noncontrolling interest				$ (1,168,859)
Noncontrolling interests						$ (62,109)
Total Deficiency		$ (1,230,968)
Member's Deficiency								$ (1,172,505)
Net income attributable to CSC Holdings' sole member	$ 274,136	274,136	$ 274,136	274,136				274,136	$ 274,136
Net income attributable to noncontrolling interests	4,403	4,403				4,403
Foreign currency translation adjustment, net of income taxes	619	619	619	619						$ 619	619
Share-based compensation expense (equity classified)	27,964	27,964	27,964	27,964				27,964	27,964
Redeemable equity vested	20,131	20,131	20,131	20,131				20,131	20,131
Change in redeemable equity	2,528	2,528	2,528	2,528				2,528	2,528
Cash distributions to parent		(501,000)		(501,000)				(501,000)
Non-cash distributions to parent		(748)		(748)				(748)
Other		246		(4,056)		4,302		(4,056)
Distributions to parent		745
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	6,356	6,356	6,356	6,356						(6,356)	6,356
Accumulated other comprehensive income											10,621
Membership equity before noncontrolling interest				(1,342,929)
Noncontrolling interests						(53,404)
Total Deficiency		(1,396,333)
Member's Deficiency								(1,353,550)
Accumulated other comprehensive income	6,497	6,497									6,497
Membership equity before noncontrolling interest		(841,659)		(841,659)
Noncontrolling interests	(51,114)	(51,114)				(51,114)
Total Deficiency		(892,773)
Member's Deficiency		(848,156)						(848,156)
Accumulated deficit	(848,836)
Net income attributable to CSC Holdings' sole member	196,551	196,551	196,551	196,551				196,551	196,551
Net income attributable to noncontrolling interests	5,590	5,590			$ 5,590	5,590
Foreign currency translation adjustment, net of income taxes	(170)	(170)	(170)	(170)						(170)	(170)
Share-based compensation expense (equity classified)	40,512	40,512	40,512	40,512			$ 40,512	40,512	$ 0
Cash distributions to parent		0
Non-cash distributions to parent								0
Other		11		11		0		11
Distributions to parent		0
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax	1,843	1,843	$ 1,843	1,843						$ (1,843)	1,843
Accumulated other comprehensive income	8,170	8,170									$ 8,170
Membership equity before noncontrolling interest		(602,912)		$ (602,912)
Noncontrolling interests	(45,524)	(45,524)				$ (45,524)
Total Deficiency		(648,436)
Member's Deficiency		$ (611,082)						$ (611,082)
Accumulated deficit	$ (652,285)

CSC HOLDINGS - CONSOLIDATED S_4

CSC HOLDINGS - CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash flows from operating activities:
Net income	$ 202,141	$ 278,539
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization (including impairments)	435,349	434,857
Loss (gain) on derivative contracts, net	(101,074)	53,565
Amortization of deferred financing costs and discounts (premiums) on indebtedness	20,342	23,039
Share-based compensation expense	40,532	28,281
Deferred income taxes	(16,149)	29,165
Operating Lease, Right-of-Use Asset, Amortization Expense	10,955	10,816
Provision for doubtful accounts	14,737	11,133
Other	(287)	1,074
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	9,112	55,293
Prepaid expenses and other assets	(19,462)	(26,321)
Amounts due from and due to affiliates	(8,992)	4,627
Accounts payable and accrued liabilities	(13,477)	(29,696)
Deferred revenue	14,613	38,501
Liabilities related to interest rate swap contracts	(138,894)	(89,798)
Net cash provided by operating activities	600,219	749,622
Cash flows from investing activities:
Capital expenditures	(392,371)	(212,791)
Other, net	888	2,143
Net cash used in investing activities	(391,483)	(210,648)
Cash flows from financing activities:
Proceeds from long-term debt	150,000	150,000
Repayment of long-term debt	(329,688)	(225,863)
Proceeds from collateralized indebtedness and related derivative contracts, net	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	(185,105)
Principal payments on finance lease obligations	(28,941)	(18,330)
Other	0	393
Net cash used in financing activities	(208,629)	(597,445)
Net increase (decrease) in cash and cash equivalents	107	(58,471)
Net decrease in cash and cash equivalents	(63)	(57,851)
Cash, cash equivalents and restricted cash at beginning of year	195,975	278,686
Cash, cash equivalents and restricted cash at end of period	195,912	220,835
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(170)	620
Gain on investments, net	(150,773)	73,453
CSC Holdings
Cash flows from operating activities:
Net income	202,141	278,539
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization (including impairments)	435,349	434,857
Loss (gain) on derivative contracts, net	(101,074)	53,565
Amortization of deferred financing costs and discounts (premiums) on indebtedness	20,342	23,039
Share-based compensation expense	40,532	28,281
Deferred income taxes	(16,149)	29,165
Operating Lease, Right-of-Use Asset, Amortization Expense	10,955	10,816
Provision for doubtful accounts	14,737	11,133
Other	(287)	1,074
Change in assets and liabilities, net of effects of acquisitions and dispositions:
Accounts receivable, trade	9,112	55,293
Prepaid expenses and other assets	(18,703)	(26,321)
Amounts due from and due to affiliates	(8,992)	3,882
Accounts payable and accrued liabilities	(13,477)	(29,611)
Deferred revenue	14,613	38,501
Liabilities related to interest rate swap contracts	(138,894)	(89,798)
Net cash provided by operating activities	600,978	748,962
Cash flows from investing activities:
Capital expenditures	(392,371)	(212,791)
Other, net	888	2,143
Net cash used in investing activities	(391,483)	(210,648)
Cash flows from financing activities:
Proceeds from long-term debt	150,000	150,000
Repayment of long-term debt	(329,688)	(225,863)
Proceeds from collateralized indebtedness and related derivative contracts, net	0	185,105
Repayment of collateralized indebtedness and related derivative contracts, net	0	(185,105)
Distributions to parent	0	501,000
Principal payments on finance lease obligations	(28,941)	(18,330)
Other	0	(1,465)
Net cash used in financing activities	(208,629)	(596,658)
Net increase (decrease) in cash and cash equivalents	866	(58,344)
Net decrease in cash and cash equivalents	696	(57,724)
Cash, cash equivalents and restricted cash at beginning of year	193,418	278,202
Cash, cash equivalents and restricted cash at end of period	194,114	220,478
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	(170)	620
Gain on investments, net	$ (150,773)	$ 73,453

DESCRIPTION OF BUSINESS AND REL

DESCRIPTION OF BUSINESS AND RELATED MATTERS	3 Months Ended
	Mar. 31, 2022
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.a.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, through CSC Holdings, LLC (a wholly-owned subsidiary of Cablevision Systems Corporation) and its consolidated subsidiaries ("CSC Holdings," and collectively with Altice USA, the "Company"), principally provides broadband communications and video services in the United States. It markets its residential services primarily under two brands: Optimum, in the New York metropolitan area, and Suddenlink, principally in markets in the south-central United States. It operates enterprise services under the brands Lightpath, Altice Business, Optimum Business and Suddenlink Business. It delivers broadband, video, telephony services, proprietary content and advertising services to residential and business customers. In addition, the Company offers a full service mobile offering, to consumers across its footprint. As these brands are managed on a consolidated basis, the Company classifies its 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. Altice USA is a holding company and has no business operations independent of its CSC Holdings subsidiary, whose operating results and financial position are consolidated into Altice USA. 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, prepaid expenses and other current assets, and deferred taxes on its consolidated balance sheet. 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 or 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 an SEC registrant.

BASIS OF PRESENTATION

BASIS OF PRESENTATION	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies [Text Block]	BASIS OF PRESENTATION The accompanying unaudited consolidated financial statements of the Company have been prepared in accordance with U.S. generally accepted accounting principles ("GAAP") and with the instructions to Form 10-Q and Article 10 of Regulation S-X for interim financial information. Accordingly, these financial statements do not include all the information and notes required for complete annual financial statements. The interim consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in the Company's Annual Report on Form 10-K for the year ended December 31, 2021. The financial statements presented in this report are unaudited; however, in the opinion of management, such financial statements include all adjustments, consisting of normal recurring adjustments, necessary for a fair presentation of the results for the periods presented. The results of operations for the interim periods are not necessarily indicative of the results that might be expected for future interim periods or for the full year ending December 31, 2022. The preparation of financial statements in conformity with 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 revenue and expenses during the reporting period. Actual results could differ from those estimates. See Note 10 for a discussion of fair value estimates.

Revenue Recognition and Deferre

Revenue Recognition and Deferred Revenue	3 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	REVENUE The following table presents the composition of revenue: Three Months Ended March 31, 2022 2021 Broadband $ 985,517 $ 970,571 Video 841,887 905,834 Telephony 85,234 106,981 Residential revenue 1,912,638 1,983,386 Business services and wholesale revenue 367,522 367,216 News and advertising 114,675 105,070 Mobile 24,035 19,235 Other 3,027 3,914 Total revenue $ 2,421,897 $ 2,478,821 The Company is 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 the Company, 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 three months ended March 31, 2022 and 2021, the amount of franchise fees and certain other taxes and fees included as a component of revenue aggregated $59,088 and $66,056, respectively. Customer Contract Costs Deferred enterprise sales commission costs are included in other current and noncurrent assets in the consolidated
Concentration Risk Disclosure	Concentration of Credit Risk The Company did not have a single customer that represented 10% or more of its consolidated revenues for the three months ended March 31, 2022 and 2021 or 10% or more of its consolidated net trade receivables at March 31, 2022 and December 31, 2021, respectively.

Earnings Per Share

Earnings Per Share	3 Months Ended
	Mar. 31, 2022
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 and restricted stock units. For such awards that are performance based, the diluted 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 for the three months ended March 31, 2022 and 2021: Three Months Ended March 31, 2022 2021 (in thousands) Basic weighted average shares outstanding 453,229 469,233 Effect of dilution: Stock options — 6,170 Restricted stock — 45 Diluted weighted average shares outstanding 453,229 475,448 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 58,401 495 Performance stock units and restricted stock whose performance metrics have not been achieved. 7,705 8,748 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.

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	3 Months Ended
	Mar. 31, 2021
Supplemental Cash Flow Elements [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION The Company's non-cash investing and financing activities and other supplemental data were as follows: Three Months Ended March 31, 2022 2021 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 323,815 $ 266,995 Notes payable issued for the purchase of equipment and other assets 35,070 — Unsettled purchases of shares of Altice USA, Inc. Class A common stock, pursuant to a share repurchase program — 18,942 Right-of-use assets acquired in exchange for finance lease obligations 47,288 38,348 CSC Holdings: Distributions to parent — 745 Supplemental Data: Altice USA and CSC Holdings: Cash interest paid 313,024 310,878 Income taxes paid, net 23,042 9,727

INTANGIBLE ASSETS

INTANGIBLE ASSETS	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
INTANGIBLE ASSETS	INTANGIBLE ASSETS The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of March 31, 2022 As of December 31, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,113,669 $ (4,142,528) $ 1,971,141 $ 6,113,669 $ (4,020,282) $ 2,093,387 3 to 18 years Trade names 1,081,083 (1,012,129) 68,954 1,081,083 (988,563) 92,520 2 to 10 years Other amortizable intangibles 58,580 (43,647) 14,933 58,398 (42,304) 16,094 1 to 15 years $ 7,253,332 $ (5,198,304) $ 2,055,028 $ 7,253,150 $ (5,051,149) $ 2,202,001 Amortization expense for the three months ended March 31, 2022 and 2021 aggregated $147,155 and $165,114, respectively.

DEBT

DEBT	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
DEBT	DEBT The following table provides details of the Company's outstanding debt: Interest Rate March 31, 2022 December 31, 2021 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: September 27, 2012 September 15, 2022 5.875 % $ 649,024 $ 639,996 $ 649,024 $ 635,310 May 23, 2014 June 1, 2024 5.250 % 750,000 714,781 750,000 711,137 October 18, 2018 April 1, 2028 7.500 % 4,118 4,113 4,118 4,113 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,622 1,045,882 1,044,582 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,282,054 2,250,000 2,282,875 June 16 and August 17, 2020 December 1, 2030 4.625 % 2,325,000 2,365,965 2,325,000 2,366,886 May 13, 2021 November 15, 2031 5.000 % 500,000 498,269 500,000 498,234 7,524,024 7,549,800 7,524,024 7,543,137 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,306,649 1,310,000 1,306,508 January 29, 2018 February 1, 2028 5.375 % 1,000,000 994,459 1,000,000 994,262 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,747,579 1,750,000 1,747,511 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,095,770 1,100,000 1,095,672 August 17, 2020 February 15, 2031 3.375 % 1,000,000 997,040 1,000,000 996,970 May 13, 2021 November 15, 2031 4.500 % 1,500,000 1,494,815 1,500,000 1,494,710 7,660,000 7,636,312 7,660,000 7,635,633 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility January 31, 2024 (c) 2.647 % (b) 740,000 734,574 900,000 893,864 Term Loan B July 17, 2025 2.647 % 2,857,500 2,849,508 2,865,000 2,856,421 Incremental Term Loan B-3 January 15, 2026 2.647 % 1,236,750 1,233,418 1,239,938 1,236,394 Incremental Term Loan B-5 April 15, 2027 2.897 % 2,940,000 2,923,069 2,947,500 2,929,813 7,774,250 7,740,569 7,952,438 7,916,492 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625 % 415,000 407,342 415,000 407,104 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875 % 450,000 442,057 450,000 441,739 Lightpath Term Loan November 30, 2027 3.750 % 592,500 578,195 594,000 579,119 Lightpath Revolving Credit Facility November 30, 2025 (d) — — — — 1,457,500 1,427,594 1,459,000 1,427,962 Collateralized indebtedness (see Note 9) 1,759,017 1,716,600 1,759,017 1,706,997 Finance lease obligations 237,082 237,082 218,735 218,735 Notes payable and supply chain financing (e) 132,874 132,874 97,804 97,804 26,544,747 26,440,831 26,671,018 26,546,760 Less: current portion of credit facility debt (78,750) (78,750) (78,750) (78,750) Less: current portion of senior notes (649,024) (639,996) (649,024) (635,310) Less: current portion of finance lease obligations (121,201) (121,201) (109,204) (109,204) Less: current portion of notes payable and supply chain financing (129,466) (129,466) (94,049) (94,049) (978,441) (969,413) (931,027) (917,313) Long-term debt $ 25,566,306 $ 25,471,418 $ 25,739,991 $ 25,629,447 (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 March 31, 2022, $133,706 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,601,294 of the facility was undrawn and available, subject to covenant limitations. (c) The revolving credit facility of an aggregate principal amount of $2,475,000 is priced at LIBOR plus 2.25%. (d) There were no borrowings outstanding under the Lightpath Revolving Credit Facility which provides for commitments in an aggregate principal amount of $100,000. Borrowings bear interest at a rate per annum equal to the adjusted LIBOR rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum. (e) Includes $124,968 related to supply chain financing agreements that are required to be repaid within one year from the date of the respective agreement. For financing purposes, the Company has 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 Cablevision Lightpath LLC ("Lightpath"), a 50.01% owned subsidiary of the Company, which became an unrestricted subsidiary in September 2020. 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. Both CSC Holdings and Lightpath's credit facilities agreements contain 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 credit facilities will be entitled to take various actions, including the acceleration of amounts due under the credit facilities and all actions permitted to be taken by a secured creditor. As of March 31, 2022, CSC Holdings and Cablevision 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. Summary of Debt Maturities The future maturities of debt payable by the Company under its various debt obligations outstanding as of March 31, 2022, including notes payable and collateralized indebtedness (see Note 9), but excluding finance lease obligations, are as follows: 2022 $ 810,706 2023 1,867,882 2024 1,568,889 2025 2,823,750 2026 1,224,938 Thereafter 18,011,500

DERIVATIVE CONTRACTS AND COLLAT

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS	DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS Prepaid Forward Contracts The Company has entered into various transactions to limit the exposure against equity price risk on its shares of Comcast Corporation ("Comcast") common stock. The Company has monetized all of its stock holdings in Comcast through the execution of prepaid forward contracts, collateralized by an equivalent amount of the respective underlying stock. At maturity, the contracts provide for the option to deliver cash or shares of Comcast stock with a value determined by reference to the applicable stock price at maturity. These contracts, at maturity, are expected to offset declines in the fair value of these securities below the hedge price per share while allowing the Company to retain upside appreciation from the hedge price per share to the relevant cap price. The Company received cash proceeds upon execution of the prepaid forward contracts discussed above which has been reflected as collateralized indebtedness in the accompanying consolidated balance sheets. In addition, the Company separately accounts for the equity derivative component of the prepaid forward contracts. These equity derivatives have not been designated as hedges for accounting purposes. Therefore, the net fair values of the equity derivatives have been reflected in the accompanying consolidated balance sheets as an asset or liability and the net increases or decreases in the fair value of the equity derivative component of the prepaid forward contracts are included in gain (loss) on derivative contracts in the accompanying consolidated statements of operations. All of the Company's monetization transactions are obligations of its wholly-owned subsidiaries that are not part of the Restricted Group; however, CSC Holdings has provided guarantees of the subsidiaries' ongoing contract payment expense obligations and potential payments that could be due as a result of an early termination event (as defined in the agreements). If any one of these contracts was terminated prior to its scheduled maturity date, the Company would be obligated to repay the fair value of the collateralized indebtedness less the sum of the fair values of the underlying stock and equity collar, calculated at the termination date. As of March 31, 2022, the Company did not have an early termination shortfall relating to any of these contracts. The Company monitors the financial institutions that are counterparties to its equity derivative contracts. All of the counterparties to such transactions carry investment grade credit ratings as of March 31, 2022. In January 2021, the Company settled collateralized indebtedness and an equity derivative contract aggregating $185,105 upon maturity related to 5,337,750 shares of Comcast common stock held by us, with proceeds of $185,105 received in the current period pursuant to the synthetic monetization closeout transaction in November 2019. In connection with this transaction the Company recorded (i) a decrease in notes payable of $59,451 and (ii) an increase in collateralized debt of $59,451. 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 the Company 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 carried at their fair market values on our consolidated balance sheets, with changes in fair value reflected in the consolidated statements of operations. As of March 31, 2022, the Company did not hold and has not issued derivative instruments for trading or speculative purposes. The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at March 31, 2022 December 31, 2021 Asset Derivatives: Interest rate swap contracts Prepaid expenses and other current assets $ — $ 2,993 Interest rate swap contracts Other asset, long-term 53,539 — 53,539 2,993 Liability Derivatives: Interest rate swap contracts Other current liabilities — (3,441) Prepaid forward contracts Liabilities under derivative contracts, long-term (60,868) (161,942) Interest rate swap contracts Liabilities under derivative contracts, long-term (30,084) (114,991) $ (90,952) $ (280,374) The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying common stock: Three Months Ended March 31, 2022 2021 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ 101,074 $ (53,565) Change in the fair value of Comcast common stock included in gain (loss) on investments (150,773) 73,453 Gain on interest rate swap contracts 123,147 75,653 The following is a summary of interest rate swap contracts outstanding at March 31, 2022: Trade Date Maturity Date Notional Amount Company Pays Company Receives March 2020 January 2025 $ 500,000 Fixed rate of 1.53% Three-month LIBOR December 2018 January 2025 500,000 Fixed rate of 1.625% Three-month LIBOR March 2020 January 2025 500,000 Fixed rate of 1.458% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9155% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9025% Three-month LIBOR

FAIR VALUE MEASUREMENT

FAIR VALUE MEASUREMENT	3 Months Ended
	Mar. 31, 2022
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 the Company's 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 March 31, 2022 December 31, 2021 Assets: Money market funds Level I $ 131,259 $ 100,015 Investment securities pledged as collateral Level I 2,011,164 2,161,937 Prepaid forward contracts Level II — — Interest rate swap contracts Level II 53,539 2,993 Liabilities: Prepaid forward contracts Level II 60,868 161,942 Interest rate swap contracts Level II 30,084 118,432 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. 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: March 31, 2022 December 31, 2021 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 8,318,764 $ 8,366,750 $ 8,495,611 $ 8,546,438 Collateralized indebtedness Level II 1,716,600 1,727,051 1,706,997 1,741,710 Senior guaranteed notes and senior secured notes Level II 8,078,369 7,610,688 8,077,372 8,180,813 Senior notes Level II 7,957,142 7,203,109 7,950,241 7,883,071 Notes payable and supply chain financing Level II 132,874 132,861 97,804 97,588 $ 26,203,749 $ 25,040,459 $ 26,328,025 $ 26,449,620 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

INCOME TAXES

INCOME TAXES	3 Months Ended
	Mar. 31, 2022
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES In general, the Company is required to use an estimated annual effective tax rate ("AETR") to measure the income tax expense or benefit recognized on a year to date basis in an interim period. In addition, certain items included in income tax expense as well as the tax impact of certain items included in pretax income must be treated as discrete items. The income tax expense or benefit associated with these discrete items is fully recognized in the interim period in which the items occur. For the three months ended March 31, 2022, the Company recorded a tax expense of $82,846 on pre-tax income of $284,987, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was due to the impact of certain non-deductible expenses and state tax expense. For the three months ended March 31, 2021, the Company recorded a tax expense of $112,007 on pre-tax income of $390,546, resulting in an effective tax rate that was higher than the U.S. statutory tax rate. The higher tax rate was due to the impact of certain non-deductible expenses and state tax expense.

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION	3 Months Ended
	Mar. 31, 2022
Share-based Payment Arrangement [Abstract]
SHARE-BASED COMPENSATION	SHARE-BASED COMPENSATION The following table presents share-based compensation expense recognized by the Company and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost As of March 31, 2022 Three Months Ended March 31, 2022 2021 Awards issued pursuant to LTIP: Stock Option Awards $ 22,497 $ 24,223 $ 130,916 Performance Stock Units 2,026 2,982 40,931 Restricted Share Units 16,009 317 93,723 Other awards — 759 — $ 40,532 $ 28,281 $ 265,570 Stock Option Awards The following table summarizes activity related to stock options granted to Company employees: Shares Under Option Weighted Average Weighted Average Remaining Aggregate Intrinsic Balance at December 31, 2021 50,998,816 $ 22.51 8.29 $ 6,801 Granted 1,284,633 14.01 Forfeited (927,472) 22.63 Balance at March 31, 2022 (b) 51,355,977 $ 22.30 7.96 276 Options exercisable at March 31, 2022 19,713,832 $ 24.23 6.36 $ — (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 to purchase 13,147,405 shares are subject to shareholder approval of an increase of shares authorized to be issued pursuant to the Company's 2017 Long Term Incentive Plan ("LTIP"). The total unrecognized compensation cost related to stock options is expected to be recognized over a weighted-average period of approximately 2.52 years. The weighted-average fair value of stock option awards granted during the three months ended March 31, 2022 was $4.50. The following weighted-average assumptions were used to calculate the fair values of stock option awards granted during the three months ended March 31, 2022: Risk-free interest rate 1.93% Expected life (in years) 6.16 Dividend yield —% Volatility 37.09% Performance Stock Unit Awards The following table summarizes activity related to performance stock units ("PSUs") granted to Company employees: Number of PSUs Balance at December 31, 2021 6,361,894 Forfeited (163,621) Balance at March 31, 2022 6,198,273 The PSUs have a weighted average grant date fair value of $10.65 per unit. The total unrecognized compensation cost related to the outstanding PSUs is expected to be recognized over a weighted-average period of approximatel y 3.83 years. Restricted Share Units The following table summarizes activity related to restricted share units granted to Company employees: Number of Units Balance at December 31, 2021 6,617,837 Granted 416,484 Forfeited (158,111) Balance at March 31, 2022 (a) 6,876,210 (a) 5,023,530 Restricted stock units are subject to shareholder approval of an increase of shares authorized to be issued pursuant to the 2017 LTIP. Lightpath Plan Awards As of March 31, 2022, 433,225 Class A-1 management incentive units and 231,928 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 Lightpath Holdings LLC agreement. The grant date fair value of the Award Units granted and outstanding aggregated $29,000 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	3 Months Ended
	Mar. 31, 2022
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: Three Months Ended March 31, 2022 2021 Revenue $ 638 $ 3,406 Operating expenses: Programming and other direct costs $ (4,618) $ (2,228) Other operating expenses, net (3,095) (3,179) Operating expenses, net (7,713) (5,407) Net charges $ (7,075) $ (2,001) Capital Expenditures $ 11,838 $ 10,621 Revenue The Company recognized revenue primarily from the sale of advertising to subsidiaries of Altice Europe, including Teads S.A. ("Teads") and in 2021, a foundation controlled by Mr. Drahi. Programming and other direct costs Programming and other direct costs include costs incurred by the Company for advertising services provided by Teads. Other operating expenses, net Other operating expenses primarily include charges for services provided by certain subsidiaries of Altice Europe and other related parties. 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: March 31, 2022 December 31, 2021 Due from: Altice Europe $ 295 $ 241 Other affiliates and related parties 3,535 3,535 $ 3,830 $ 3,776 Due to: Altice Europe $ 21,524 $ 30,604 Other affiliates and related parties 1,348 1,206 $ 22,872 $ 31,810 Amounts due from affiliates presented in the table above and included in prepaid expenses and other current assets in the accompanying balance sheets represent amounts paid by the Company on behalf of or 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 and advertising services, as well as reimbursement for payments made on our behalf. CSC Holdings During the three months ended March 31, 2021, CSC Holdings made cash equity distribution payments to its parent. Also, CSC Holdings recorded net non-cash equity contributions (distributions) during the three months ended March 31, 2021 which represent the non-cash settlement of intercompany balances with Altice USA. These balances primarily include amounts due to/due from Altice USA pursuant to a tax sharing agreement between the entities. See summary below: Three Months Ended March 31, 2022 2021 Cash distribution payments to Altice USA $ — $ (501,000) Non-cash equity distributions, net to Altice USA — (748)

COMMITMENTS AND CONTINGENCIES

COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Mar. 31, 2022
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIES Legal Matters On June 23, 2020, a purported stockholder of the Company filed a complaint in the Court of Chancery of the State of Delaware, derivatively on behalf of the Company, against Patrick Drahi, Next Alt S.à.r.l., and those directors of the Company who are members of the Compensation Committee (collectively, the “Director Defendants”). The Company is also named as a nominal defendant in the complaint. The complaint alleges that the Director Defendants breached their fiduciary duties to the Company’s stockholders, and wasted corporate assets, by approving certain equity grants for Patrick Drahi. The complaint seeks rescission of the equity awards, monetary damages, and costs and disbursements for the plaintiff. On October 15, 2020, the Director Defendants answered the complaint and the Company filed a general denial of liability. Following negotiations with plaintiff, the parties executed a stipulation and agreement of compromise, settlement, and release on April 27, 2022 to settle the litigation. That settlement remains subject to court approval. On November 6, 2018, Sprint Communications Company L.P ("Sprint") filed a complaint in the U.S. District Court for the District of Delaware alleging that the Company infringes Sprint’s patents purportedly by providing Voice over Internet Protocol ("VoIP") services. The lawsuit is part of a pattern of litigation that was initiated as far back as 2005 by Sprint against numerous broadband and telecommunications providers, which has resulted in judgments and settlements of significant value for Sprint. Trial is scheduled to commence on December 12, 2022, at which we expect Sprint to seek as much as $250 million in damages. The Company intends to vigorously defend the lawsuit. The Company has received from UMG Recordings, Inc., Capitol Records, LLC, and BMG Rights Management (US) LLC letters alleging that the Company has not adequately addressed copyright infringement on its networks and is subject to liability and damages for secondary copyright infringement. The Company intends to vigorously defend these claims. Although the outcome of the above matters cannot be predicted and the impact of a final resolution of these matters on the Company’s results of operations or financial position is not known or reasonably estimable at this time, management does not believe that the ultimate resolution of the matters, individually or together, will have a material adverse effect on the operations or financial position of the Company or the ability of the Company to meet its financial obligations as they become due, but they could be material to the Company’s consolidated results of operations or cash flows for any one period. In addition to the matters discussed above, the Company also receives notices from third parties, and in some cases is named as a defendant in lawsuits, claiming infringement of various patents or copyrights relating to various aspects of the Company's businesses. In certain of these cases other industry participants are also defendants, and in certain of these cases the Company expects that some or all potential liability would be the responsibility of the Company's vendors pursuant to applicable contractual indemnification provisions. In the event that the Company is found to infringe on any patent or other intellectual property rights, the Company may be subject to substantial damages and/or an injunction that could require the Company or its vendors to modify certain products and services the Company offers to its subscribers, as well as enter into royalty or license agreements with respect to the patents at issue. The Company is also party to various other lawsuits, disputes and investigations arising in the ordinary course of its 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 the Company's 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 the operations or financial position of the Company or the ability of the Company to meet its financial obligations as they become due.

Accounting Policies (Policies)

Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2022
Accounting Policies [Abstract]
Recently Adopted Accounting Pronouncements and Recently Issued But Not Yet Adopted Accounting Pronouncements	ACCOUNTING STANDARDS 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 Financial Accounting Standards Board ("FASB") issued ASU No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers , which will require 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 current GAAP, an acquirer generally recognizes 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 will result 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. ASU No. 2021-08 is effective for the Company on January 1, 2023, however the Company elected to early adopt this ASU on January 1, 2022. The guidance will be applied to any future business combinations. 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 new standard, 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. The Company adopted the new guidance on January 1, 2022 and the Company will provide required disclosures for any future material transactions.

Revenue Recognition and Defer_2

Revenue Recognition and Deferred Revenue (Tables)	3 Months Ended
	Mar. 31, 2022
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following table presents the composition of revenue: Three Months Ended March 31, 2022 2021 Broadband $ 985,517 $ 970,571 Video 841,887 905,834 Telephony 85,234 106,981 Residential revenue 1,912,638 1,983,386 Business services and wholesale revenue 367,522 367,216 News and advertising 114,675 105,070 Mobile 24,035 19,235 Other 3,027 3,914 Total revenue $ 2,421,897 $ 2,478,821

Earnings Per Share (Tables)

Earnings Per Share (Tables)	3 Months Ended
	Mar. 31, 2022
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 for the three months ended March 31, 2022 and 2021: Three Months Ended March 31, 2022 2021 (in thousands) Basic weighted average shares outstanding 453,229 469,233 Effect of dilution: Stock options — 6,170 Restricted stock — 45 Diluted weighted average shares outstanding 453,229 475,448 Weighted average shares excluded from diluted weighted average shares outstanding: Anti-dilutive shares 58,401 495 Performance stock units and restricted stock whose performance metrics have not been achieved. 7,705 8,748

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	3 Months Ended
	Mar. 31, 2022
Supplemental Cash Flow Elements [Abstract]
Non-Cash Investing and Financing Activities and Other Supplemental Data	The Company's non-cash investing and financing activities and other supplemental data were as follows: Three Months Ended March 31, 2022 2021 Non-Cash Investing and Financing Activities: Altice USA and CSC Holdings: Property and equipment accrued but unpaid $ 323,815 $ 266,995 Notes payable issued for the purchase of equipment and other assets 35,070 — Unsettled purchases of shares of Altice USA, Inc. Class A common stock, pursuant to a share repurchase program — 18,942 Right-of-use assets acquired in exchange for finance lease obligations 47,288 38,348 CSC Holdings: Distributions to parent — 745 Supplemental Data: Altice USA and CSC Holdings: Cash interest paid 313,024 310,878 Income taxes paid, net 23,042 9,727

INTANGIBLE ASSETS (Tables)

INTANGIBLE ASSETS (Tables)	3 Months Ended
	Mar. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Acquired Finite-Lived Intangible Assets by Major Class	The following table summarizes information relating to the Company's acquired amortizable intangible assets: As of March 31, 2022 As of December 31, 2021 Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Estimated Useful Lives Customer relationships $ 6,113,669 $ (4,142,528) $ 1,971,141 $ 6,113,669 $ (4,020,282) $ 2,093,387 3 to 18 years Trade names 1,081,083 (1,012,129) 68,954 1,081,083 (988,563) 92,520 2 to 10 years Other amortizable intangibles 58,580 (43,647) 14,933 58,398 (42,304) 16,094 1 to 15 years $ 7,253,332 $ (5,198,304) $ 2,055,028 $ 7,253,150 $ (5,051,149) $ 2,202,001

DEBT (Tables)

DEBT (Tables)	3 Months Ended
	Mar. 31, 2022
Debt Disclosure [Abstract]
Schedule of Line of Credit Facilities	The following table provides details of the Company's outstanding debt: Interest Rate March 31, 2022 December 31, 2021 Date Issued Maturity Date Principal Amount Carrying Amount (a) Principal Amount Carrying Amount (a) CSC Holdings Senior Notes: September 27, 2012 September 15, 2022 5.875 % $ 649,024 $ 639,996 $ 649,024 $ 635,310 May 23, 2014 June 1, 2024 5.250 % 750,000 714,781 750,000 711,137 October 18, 2018 April 1, 2028 7.500 % 4,118 4,113 4,118 4,113 November 27, 2018 April 1, 2028 7.500 % 1,045,882 1,044,622 1,045,882 1,044,582 July 10 and October 7, 2019 January 15, 2030 5.750 % 2,250,000 2,282,054 2,250,000 2,282,875 June 16 and August 17, 2020 December 1, 2030 4.625 % 2,325,000 2,365,965 2,325,000 2,366,886 May 13, 2021 November 15, 2031 5.000 % 500,000 498,269 500,000 498,234 7,524,024 7,549,800 7,524,024 7,543,137 CSC Holdings Senior Guaranteed Notes: September 23, 2016 April 15, 2027 5.500 % 1,310,000 1,306,649 1,310,000 1,306,508 January 29, 2018 February 1, 2028 5.375 % 1,000,000 994,459 1,000,000 994,262 January 24, 2019 February 1, 2029 6.500 % 1,750,000 1,747,579 1,750,000 1,747,511 June 16, 2020 December 1, 2030 4.125 % 1,100,000 1,095,770 1,100,000 1,095,672 August 17, 2020 February 15, 2031 3.375 % 1,000,000 997,040 1,000,000 996,970 May 13, 2021 November 15, 2031 4.500 % 1,500,000 1,494,815 1,500,000 1,494,710 7,660,000 7,636,312 7,660,000 7,635,633 CSC Holdings Restricted Group Credit Facility: Revolving Credit Facility January 31, 2024 (c) 2.647 % (b) 740,000 734,574 900,000 893,864 Term Loan B July 17, 2025 2.647 % 2,857,500 2,849,508 2,865,000 2,856,421 Incremental Term Loan B-3 January 15, 2026 2.647 % 1,236,750 1,233,418 1,239,938 1,236,394 Incremental Term Loan B-5 April 15, 2027 2.897 % 2,940,000 2,923,069 2,947,500 2,929,813 7,774,250 7,740,569 7,952,438 7,916,492 Lightpath Senior Notes: September 29, 2020 September 15, 2028 5.625 % 415,000 407,342 415,000 407,104 Lightpath Senior Secured Notes: September 29, 2020 September 15, 2027 3.875 % 450,000 442,057 450,000 441,739 Lightpath Term Loan November 30, 2027 3.750 % 592,500 578,195 594,000 579,119 Lightpath Revolving Credit Facility November 30, 2025 (d) — — — — 1,457,500 1,427,594 1,459,000 1,427,962 Collateralized indebtedness (see Note 9) 1,759,017 1,716,600 1,759,017 1,706,997 Finance lease obligations 237,082 237,082 218,735 218,735 Notes payable and supply chain financing (e) 132,874 132,874 97,804 97,804 26,544,747 26,440,831 26,671,018 26,546,760 Less: current portion of credit facility debt (78,750) (78,750) (78,750) (78,750) Less: current portion of senior notes (649,024) (639,996) (649,024) (635,310) Less: current portion of finance lease obligations (121,201) (121,201) (109,204) (109,204) Less: current portion of notes payable and supply chain financing (129,466) (129,466) (94,049) (94,049) (978,441) (969,413) (931,027) (917,313) Long-term debt $ 25,566,306 $ 25,471,418 $ 25,739,991 $ 25,629,447 (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 March 31, 2022, $133,706 of the revolving credit facility was restricted for certain letters of credit issued on behalf of the Company and $1,601,294 of the facility was undrawn and available, subject to covenant limitations. (c) The revolving credit facility of an aggregate principal amount of $2,475,000 is priced at LIBOR plus 2.25%. (d) There were no borrowings outstanding under the Lightpath Revolving Credit Facility which provides for commitments in an aggregate principal amount of $100,000. Borrowings bear interest at a rate per annum equal to the adjusted LIBOR rate or the alternate base rate, as applicable, plus the applicable margin, where the applicable margin is (i) with respect to any alternate base rate loan, 2.25% per annum and (ii) with respect to any eurodollar loan, 3.25% per annum.
Schedule of Maturities of Long-term Debt	The future maturities of debt payable by the Company under its various debt obligations outstanding as of March 31, 2022, including notes payable and collateralized indebtedness (see Note 9), but excluding finance lease obligations, are as follows: 2022 $ 810,706 2023 1,867,882 2024 1,568,889 2025 2,823,750 2026 1,224,938 Thereafter 18,011,500

DERIVATIVE CONTRACTS AND COLL_2

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS (Tables)	3 Months Ended
	Mar. 31, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Location of Assets and Liabilities Associated With Derivative Instruments Within the Condensed Consolidated Balance Sheets	The following represents the location of the assets and liabilities associated with the Company's derivative instruments within the consolidated balance sheets: Derivatives Not Designated as Hedging Instruments Balance Sheet Location Fair Value at March 31, 2022 December 31, 2021 Asset Derivatives: Interest rate swap contracts Prepaid expenses and other current assets $ — $ 2,993 Interest rate swap contracts Other asset, long-term 53,539 — 53,539 2,993 Liability Derivatives: Interest rate swap contracts Other current liabilities — (3,441) Prepaid forward contracts Liabilities under derivative contracts, long-term (60,868) (161,942) Interest rate swap contracts Liabilities under derivative contracts, long-term (30,084) (114,991) $ (90,952) $ (280,374)
Schedule of Interest Rate Derivatives	The following table presents certain consolidated statement of operations data related to our derivative contracts and the underlying common stock: Three Months Ended March 31, 2022 2021 Gain (loss) on derivative contracts related to change in the value of equity derivative contracts related to Comcast common stock $ 101,074 $ (53,565) Change in the fair value of Comcast common stock included in gain (loss) on investments (150,773) 73,453 Gain on interest rate swap contracts 123,147 75,653
Schedule of Interest rate swaps [Table]	The following is a summary of interest rate swap contracts outstanding at March 31, 2022: Trade Date Maturity Date Notional Amount Company Pays Company Receives March 2020 January 2025 $ 500,000 Fixed rate of 1.53% Three-month LIBOR December 2018 January 2025 500,000 Fixed rate of 1.625% Three-month LIBOR March 2020 January 2025 500,000 Fixed rate of 1.458% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9155% Three-month LIBOR December 2018 December 2026 750,000 Fixed rate of 2.9025% Three-month LIBOR

FAIR VALUE MEASUREMENT (Tables)

FAIR VALUE MEASUREMENT (Tables)	3 Months Ended
	Mar. 31, 2022
Fair Value Disclosures [Abstract]
Assets and Liabilities Measured at Fair Value on a Recurring Basis	The following table presents the Company's 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 March 31, 2022 December 31, 2021 Assets: Money market funds Level I $ 131,259 $ 100,015 Investment securities pledged as collateral Level I 2,011,164 2,161,937 Prepaid forward contracts Level II — — Interest rate swap contracts Level II 53,539 2,993 Liabilities: Prepaid forward contracts Level II 60,868 161,942 Interest rate swap contracts Level II 30,084 118,432
Schedule of Carrying Values and Estimated Fair Values of Debt Instruments	March 31, 2022 December 31, 2021 Fair Value Carrying Estimated Carrying Estimated Credit facility debt Level II $ 8,318,764 $ 8,366,750 $ 8,495,611 $ 8,546,438 Collateralized indebtedness Level II 1,716,600 1,727,051 1,706,997 1,741,710 Senior guaranteed notes and senior secured notes Level II 8,078,369 7,610,688 8,077,372 8,180,813 Senior notes Level II 7,957,142 7,203,109 7,950,241 7,883,071 Notes payable and supply chain financing Level II 132,874 132,861 97,804 97,588 $ 26,203,749 $ 25,040,459 $ 26,328,025 $ 26,449,620 (a) Amounts are net of unamortized deferred financing costs and discounts/premiums.

SHARE-BASED COMPENSATION (Table

SHARE-BASED COMPENSATION (Tables)	3 Months Ended
	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award	The following table presents share-based compensation expense recognized by the Company and unrecognized compensation cost: Share-Based Compensation Unrecognized Compensation Cost As of March 31, 2022 Three Months Ended March 31, 2022 2021 Awards issued pursuant to LTIP: Stock Option Awards $ 22,497 $ 24,223 $ 130,916 Performance Stock Units 2,026 2,982 40,931 Restricted Share Units 16,009 317 93,723 Other awards — 759 — $ 40,532 $ 28,281 $ 265,570
Share-based Compensation, Stock Options, Activity	The following table summarizes activity related to stock options granted to Company employees: Shares Under Option Weighted Average Weighted Average Remaining Aggregate Intrinsic Balance at December 31, 2021 50,998,816 $ 22.51 8.29 $ 6,801 Granted 1,284,633 14.01 Forfeited (927,472) 22.63 Balance at March 31, 2022 (b) 51,355,977 $ 22.30 7.96 276 Options exercisable at March 31, 2022 19,713,832 $ 24.23 6.36 $ —
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions	Risk-free interest rate 1.93% Expected life (in years) 6.16 Dividend yield —% Volatility 37.09%
Share-based Compensation Arrangements by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest	The following table summarizes activity related to performance stock units ("PSUs") granted to Company employees: Number of PSUs Balance at December 31, 2021 6,361,894 Forfeited (163,621) Balance at March 31, 2022 6,198,273
Nonvested Restricted Stock Shares Activity	The following table summarizes activity related to restricted share units granted to Company employees: Number of Units Balance at December 31, 2021 6,617,837 Granted 416,484 Forfeited (158,111) Balance at March 31, 2022 (a) 6,876,210 (a) 5,023,530 Restricted stock units are subject to shareholder approval of an increase of shares authorized to be issued pursuant to the 2017 LTIP.

AFFILIATE AND RELATED PARTY T_2

AFFILIATE AND RELATED PARTY TRANSACTIONS (Tables)	3 Months Ended
	Mar. 31, 2022
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: Three Months Ended March 31, 2022 2021 Revenue $ 638 $ 3,406 Operating expenses: Programming and other direct costs $ (4,618) $ (2,228) Other operating expenses, net (3,095) (3,179) Operating expenses, net (7,713) (5,407) Net charges $ (7,075) $ (2,001) Capital Expenditures $ 11,838 $ 10,621 Aggregate amounts that were due from and due to affiliates and related parties are summarized below: March 31, 2022 December 31, 2021 Due from: Altice Europe $ 295 $ 241 Other affiliates and related parties 3,535 3,535 $ 3,830 $ 3,776 Due to: Altice Europe $ 21,524 $ 30,604 Other affiliates and related parties 1,348 1,206 $ 22,872 $ 31,810

DESCRIPTION OF BUSINESS AND R_2

DESCRIPTION OF BUSINESS AND RELATED MATTERS (Details)	3 Months Ended
	Mar. 31, 2022segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of segments	1

COMMON STOCK (Details)

COMMON STOCK (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2021USD ($)
Common Stock Outstanding Roll Forward [Roll Forward]
Value of shares repurchased	$ 522,673

Revenue Recognition and Defer_3

Revenue Recognition and Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Contract Assets and Liabilities [Line Items]
Revenues	$ 2,421,897	$ 2,478,821
Contract assets	$ 16,674		$ 17,669
Concentration Risk, Customer	10
concentration of customer to trade receivables	10.00%
Customer Contracts | Minimum
Contract Assets and Liabilities [Line Items]
Finite-lived intangible asset, useful life	3 years
Customer Contracts | Maximum
Contract Assets and Liabilities [Line Items]
Finite-lived intangible asset, useful life	5 years
Broadband
Contract Assets and Liabilities [Line Items]
Revenues	$ 985,517	970,571
Video
Contract Assets and Liabilities [Line Items]
Revenues	841,887	905,834
Telephony
Contract Assets and Liabilities [Line Items]
Revenues	85,234	106,981
Residential revenue
Contract Assets and Liabilities [Line Items]
Revenues	1,912,638	1,983,386
Business Services and Wholesale [Member]
Contract Assets and Liabilities [Line Items]
Revenues	367,522	367,216
News and advertising
Contract Assets and Liabilities [Line Items]
Revenues	114,675	105,070
Mobile
Contract Assets and Liabilities [Line Items]
Revenues	24,035	19,235
Other
Contract Assets and Liabilities [Line Items]
Revenues	3,027	3,914
Franchise [Member]
Contract Assets and Liabilities [Line Items]
Franchise fees and other taxes and fees	$ 59,088	$ 66,056

Earnings Per Share (Details)

Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Basic weighted average shares outstanding	453,229	469,233
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	6,170
Diluted weighted average shares outstanding	453,229	475,448
Anti-dilutive shares	58,401	495
Performance stock units and restricted stock whose performance metrics have not been achieved.	7,705	8,748
Restricted Stock Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements	0	45

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Non-Cash Investing and Financing Activities:
Property and equipment accrued but unpaid	$ 323,815	$ 266,995
Notes payable issued for the purchase of equipment and other assets	35,070	0
Unsettled purchases of shares of Altice USA, Inc. Class A common stock, pursuant to a share repurchase program	0	18,942
Right-of-use assets acquired in exchange for finance lease obligations	47,288	38,348
Supplemental Data:
Cash interest paid	313,024	310,878
Income taxes paid, net	23,042	9,727
CSC Holdings
Non-Cash Investing and Financing Activities:
Distributions to parent	$ 0	$ 745

LEASES - Narrative (Details)

LEASES - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 229,792		$ 222,124
Operating Lease, Liability, Noncurrent	243,035		237,226
Finance Lease, Liability, Current	121,201		$ 109,204
Operating Lease, Right-of-Use Asset, Amortization Expense	$ 10,955	$ 10,816

INTANGIBLE ASSETS - Summary of

INTANGIBLE ASSETS - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 7,253,332	$ 7,253,150
Accumulated Amortization	(5,198,304)	(5,051,149)
Net Carrying Amount	2,055,028	2,202,001
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,113,669	6,113,669
Accumulated Amortization	(4,142,528)	(4,020,282)
Net Carrying Amount	1,971,141	2,093,387
Trade names
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,081,083	1,081,083
Accumulated Amortization	(1,012,129)	(988,563)
Net Carrying Amount	68,954	92,520
Other amortizable intangibles
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	58,580	58,398
Accumulated Amortization	(43,647)	(42,304)
Net Carrying Amount	$ 14,933	$ 16,094
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	2 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	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 147,155	$ 165,114

INTANGIBLE ASSETS - Indefinite-

INTANGIBLE ASSETS - Indefinite-lived assets (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]
Cable television franchises	$ 13,216,355	$ 13,216,355
Goodwill	$ 8,205,863	$ 8,205,863

DEBT - Credit Silo Combination

DEBT - Credit Silo Combination (Details) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal amount	$ 26,544,747,000	$ 26,671,018,000
Face Amount of Senior Notes	7,524,024,000	7,524,024,000
Carrying amount of Senior Notes	7,549,800,000	7,543,137,000
Face Amount of Senior Notes and Senior Guaranteed Notes	7,660,000,000	7,660,000,000
Carrying amount of Senior Notes and Senior Guaranteed Notes	7,636,312,000	7,635,633,000
Face amount of Credit Facility Debt	7,774,250,000	7,952,438,000
Carrying value of Credit Facility Debt	7,740,569,000	7,916,492,000
Senior Notes, Current	(639,996,000)	(635,310,000)
Long-term debt	26,440,831,000	26,546,760,000
Finance Lease, Liability	237,082,000	218,735,000
Debt	969,413,000	917,313,000
Finance Lease, Liability, Current	121,201,000	109,204,000
Long-term debt, net of current maturities	25,471,418,000	25,629,447,000
Cablevision Lightpath
Debt Instrument [Line Items]
Carrying amount of Senior Notes and Senior Secured Notes	1,427,594,000	1,427,962,000
Face Amount of Senior Notes and Senior Secured Notes	1,457,500,000	1,459,000,000
Loans Payable
Debt Instrument [Line Items]
Principal amount		94,049,000
Long-term debt	129,466,000	94,049,000
Credit Facility [Domain]
Debt Instrument [Line Items]
Principal amount		78,750,000
Debt	78,750,000	78,750,000
Short-term Debt
Debt Instrument [Line Items]
Principal amount	978,441,000	931,027,000
Debt	969,413,000	917,313,000
Senior Notes
Debt Instrument [Line Items]
Principal amount	649,024,000	649,024,000
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,236,750,000	1,239,938,000
Stated interest rate	2.647%
Credit facility	$ 1,233,418,000	1,236,394,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 740,000,000	900,000,000
Stated interest rate	2.647%
Credit facility	$ 734,574,000	893,864,000
CSC Holdings Term Loan B | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,857,500,000	2,865,000,000
Stated interest rate	2.647%
Credit facility	$ 2,849,508,000	2,856,421,000
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,940,000,000	2,947,500,000
Stated interest rate	2.897%
Credit facility	$ 2,923,069,000	2,929,813,000
Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	1,759,017,000	1,759,017,000
Long-term debt	1,716,600,000	1,706,997,000
Loans Payable
Debt Instrument [Line Items]
Principal amount	132,874,000	97,804,000
Long-term debt	132,874,000	97,804,000
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 592,500,000	594,000,000
Stated interest rate	3.75%
Credit facility	$ 578,195,000	579,119,000
Cablevision Lightpath Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	0	0
Credit facility	0	0
Senior Notes | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Principal amount	1,000,000,000	1,000,000,000
Outstanding debt	$ 997,040,000	996,970,000
Stated interest rate	3.375%
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Principal amount	$ 649,024,000	649,024,000
Outstanding debt	$ 639,996,000	635,310,000
Stated interest rate	5.875%
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Principal amount	$ 750,000,000	750,000,000
Outstanding debt	$ 714,781,000	711,137,000
Stated interest rate	5.25%
Senior Notes | Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 4,118,000	4,118,000
Outstanding debt	$ 4,113,000	4,113,000
Stated interest rate	7.50%
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,045,882,000	1,045,882,000
Outstanding debt	$ 1,044,622,000	1,044,582,000
Stated interest rate	7.50%
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount	$ 2,250,000,000	2,250,000,000
Outstanding debt	$ 2,282,054,000	2,282,875,000
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	2,325,000,000
Outstanding debt	$ 2,365,965,000	2,366,886,000
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	415,000,000
Outstanding debt	$ 407,342,000	407,104,000
Stated interest rate	5.625%
Senior Notes | CSC Holdings 5.000% Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount	$ 500,000,000	500,000,000
Outstanding debt	$ 498,269,000	498,234,000
Stated interest rate	5.00%
Senior Notes | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021
Debt Instrument [Line Items]
Principal amount	$ 1,500,000,000	1,500,000,000
Outstanding debt	$ 1,494,815,000	1,494,710,000
Stated interest rate	4.50%
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount	$ 1,310,000,000	1,310,000,000
Outstanding debt	$ 1,306,649,000	1,306,508,000
Stated interest rate	5.50%
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Principal amount	$ 1,000,000,000	1,000,000,000
Outstanding debt	$ 994,459,000	994,262,000
Stated interest rate	5.375%
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Principal amount	$ 1,750,000,000	1,750,000,000
Outstanding debt	$ 1,747,579,000	1,747,511,000
Stated interest rate	6.50%
Secured Debt [Member] | CSC Holdings 4.125% Notes due December 1, 2030
Debt Instrument [Line Items]
Principal amount	$ 1,100,000,000	1,100,000,000
Outstanding debt	$ 1,095,770,000	1,095,672,000
Stated interest rate	4.125%
Secured Debt [Member] | Cablevision Lightpath LLC 3.875% Notes due September 15, 2027
Debt Instrument [Line Items]
Principal amount	$ 450,000,000	450,000,000
Outstanding debt	$ 442,057,000	441,739,000
Stated interest rate	3.875%
Long-term Debt
Debt Instrument [Line Items]
Principal amount	$ 25,566,306,000	25,739,991,000
Long-term debt, net of current maturities	$ 25,471,418,000	$ 25,629,447,000

DEBT - Credit Facilities Outsta

DEBT - Credit Facilities Outstanding (Details) $ in Thousands	Mar. 31, 2022USD ($)
Debt Instrument [Line Items]
Supply chain financing to be paid within one year	$ 124,968
Cablevision Lightpath LLC | Cablevision Lightpath LLC
Debt Instrument [Line Items]
Ownership percentage of noncontrolling interest	50.01%
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding	$ 133,706
Line of credit facility, remaining borrowing capacity	1,601,294
Line of Credit Facility, Maximum Borrowing Capacity	2,475,000
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 100,000

DEBT - Summary of Debt Maturiti

DEBT - Summary of Debt Maturities (Details) $ in Thousands	Mar. 31, 2022USD ($)
Debt Disclosure [Abstract]
2022	$ 810,706
2023	1,867,882
2024	1,568,889
2025	2,823,750
2026	1,224,938
Thereafter	$ 18,011,500

DEBT - CSC Holdings Credit Faci

DEBT - CSC Holdings Credit Facilities (Details) - USD ($)	1 Months Ended	3 Months Ended
	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Debt Instrument [Line Items]
Principal amount		$ 26,544,747,000		$ 26,671,018,000
Proceeds from long-term debt		150,000,000	$ 150,000,000
Repayments of line of credit		329,688,000	225,863,000
CSC Holdings
Debt Instrument [Line Items]
Cash distributions to parent		0	501,000,000
Proceeds from long-term debt		150,000,000	150,000,000
Repayments of line of credit		329,688,000	$ 225,863,000
5.5% Notes due April 15, 2027 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount		$ 1,310,000,000		1,310,000,000
Stated interest rate		5.50%
8.0% Notes due April 15, 2020 | Senior Notes
Debt Instrument [Line Items]
Principal amount		$ 1,000,000,000		1,000,000,000
Stated interest rate		3.375%
Secured Debt [Member] | CSC Holdings Revolving Credit Facility | LIBOR
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		$ 1,236,750,000		1,239,938,000
Secured Debt [Member] | Incremental Term Loan B-5
Debt Instrument [Line Items]
Principal amount		2,940,000,000		2,947,500,000
Secured Debt [Member] | Cablevision Lightpath Term B Loan
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		100,000,000
Principal amount		592,500,000		594,000,000
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] | Cablevision Lightpath Term B Loan | Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Revolving Credit Facility | CSC Holdings Revolving Credit Facility
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity		2,475,000,000
Principal amount		$ 740,000,000		$ 900,000,000

DEBT - Senior Guaranteed Notes

DEBT - Senior Guaranteed Notes and Senior Notes and Debentures (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Debt Instrument [Line Items]
Principal amount	$ 26,544,747,000		$ 26,671,018,000
Less: Current portion	639,996,000		635,310,000
Face Amount of Senior Notes and Senior Guaranteed Notes	7,660,000,000		7,660,000,000
Carrying amount of Senior Notes and Senior Guaranteed Notes	7,636,312,000		7,635,633,000
Face amount of Credit Facility Debt	7,774,250,000		7,952,438,000
Carrying value of Credit Facility Debt	7,740,569,000		7,916,492,000
Finance Lease, Liability	237,082,000		218,735,000
Long-term debt	26,440,831,000		26,546,760,000
Debt	969,413,000		917,313,000
Finance Lease, Liability, Current	121,201,000		109,204,000
Long-term debt, net of current maturities	25,471,418,000		25,629,447,000
Repayments of line of credit	329,688,000	$ 225,863,000
Loans Payable
Debt Instrument [Line Items]
Principal amount			94,049,000
Long-term debt	129,466,000		94,049,000
Short-term Debt
Debt Instrument [Line Items]
Principal amount	978,441,000		931,027,000
Debt	969,413,000		917,313,000
Credit Facility [Domain]
Debt Instrument [Line Items]
Principal amount			78,750,000
Debt	78,750,000		78,750,000
Incremental Term Loan B-3 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 1,236,750,000		1,239,938,000
Stated interest rate	2.647%
Credit facility	$ 1,233,418,000		1,236,394,000
Incremental Term Loan B-5 | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	$ 2,940,000,000		2,947,500,000
Stated interest rate	2.897%
Credit facility	$ 2,923,069,000		2,929,813,000
Loans Payable
Debt Instrument [Line Items]
Principal amount	132,874,000		97,804,000
Long-term debt	132,874,000		97,804,000
Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount	1,759,017,000		1,759,017,000
Long-term debt	1,716,600,000		1,706,997,000
CSC Holdings Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount	$ 740,000,000		900,000,000
Stated interest rate	2.647%
Line of Credit Facility, Maximum Borrowing Capacity	$ 2,475,000,000
Credit facility	$ 734,574,000		893,864,000
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Principal amount	$ 1,310,000,000		1,310,000,000
Carrying Amount	$ 1,306,649,000		1,306,508,000
Secured Debt [Member] | 5.375% Senior Guaranteed Notes Due February 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Principal amount	$ 1,000,000,000		1,000,000,000
Carrying Amount	$ 994,459,000		994,262,000
Secured Debt [Member] | CSC Holdings 6.500% Notes due February 1, 2029
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Principal amount	$ 1,750,000,000		1,750,000,000
Carrying Amount	1,747,579,000		1,747,511,000
Long-term Debt
Debt Instrument [Line Items]
Principal amount	25,566,306,000		25,739,991,000
Long-term debt, net of current maturities	$ 25,471,418,000		25,629,447,000
Senior Notes | 5.25% Notes due June 1, 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Principal amount	$ 750,000,000		750,000,000
Carrying Amount	$ 714,781,000		711,137,000
Senior Notes | CSC Holdings 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Principal amount	$ 1,045,882,000		1,045,882,000
Carrying Amount	$ 1,044,622,000		1,044,582,000
Senior Notes | 8.0% Notes due April 15, 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.375%
Principal amount	$ 1,000,000,000		1,000,000,000
Carrying Amount	$ 997,040,000		996,970,000
Senior Notes | 5.875% Notes due September 15, 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.875%
Principal amount	$ 649,024,000		649,024,000
Carrying Amount	$ 639,996,000		635,310,000
Senior Notes | Cablevision 7.500% Notes due April 1, 2028
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.50%
Principal amount	$ 4,118,000		4,118,000
Carrying Amount	$ 4,113,000		4,113,000
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Principal amount	$ 2,250,000,000		2,250,000,000
Carrying Amount	$ 2,282,054,000		$ 2,282,875,000

DEBT - Senior Guaranteed Notes,

DEBT - Senior Guaranteed Notes, Senior Secured Notes, and Senior Notes and Debentures (Details) - USD ($)	1 Months Ended	3 Months Ended
	Sep. 30, 2020	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Debt Instrument [Line Items]
Principal amount		$ 26,544,747,000		$ 26,671,018,000
Long-term debt		26,440,831,000		26,546,760,000
Issuance of common shares pursuant to employee long term incentive plan		10,000	$ 2,044,000
Notes Payable that will be reclassed to collateralized debt upon maturity		$ 59,451,000
Cablevision Lightpath LLC | Cablevision Lightpath LLC
Debt Instrument [Line Items]
Ownership percentage of noncontrolling interest		50.01%
Cablevision Lightpath Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Principal amount		$ 0		0
Cablevision Lightpath Term B Loan | Secured Debt [Member]
Debt Instrument [Line Items]
Principal amount		592,500,000		594,000,000
Line of Credit Facility, Maximum Borrowing Capacity		100,000,000
Cablevision Lightpath Term B Loan | Secured Debt [Member] | Alternate Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate	2.25%
Cablevision Lightpath Term B Loan | Secured Debt [Member] | Eurodollar
Debt Instrument [Line Items]
Basis spread on variable rate	3.25%
Senior Notes | CSC Holdings 5.750% Notes due January 15, 2030
Debt Instrument [Line Items]
Principal amount		$ 2,250,000,000		2,250,000,000
Stated interest rate		5.75%
Senior Notes | CSC Holdings 4.500% Senior Guaranteed Notes due November 15, 2021
Debt Instrument [Line Items]
Principal amount		$ 1,500,000,000		1,500,000,000
Stated interest rate		4.50%
Senior Notes | CSC Holdings 5.000% Notes due November 15, 2031
Debt Instrument [Line Items]
Principal amount		$ 500,000,000		500,000,000
Stated interest rate		5.00%
Secured Debt [Member] | 5.5% Notes due April 15, 2027
Debt Instrument [Line Items]
Principal amount		$ 1,310,000,000		1,310,000,000
Stated interest rate		5.50%
Long-term Debt
Debt Instrument [Line Items]
Principal amount		$ 25,566,306,000		$ 25,739,991,000

DERIVATIVE CONTRACTS AND COLL_3

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Location of Assets and Liabilities Within the Consolidated Balance Sheets (Details) - Not Designated as Hedging Instruments - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 53,539	$ 2,993
Liability Derivatives	90,952	280,374
Interest Rate Swap | Current derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	2,993
Interest Rate Swap | Long-term derivative contracts
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	53,539	0
Interest Rate Swap | Short-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	0	3,441
Interest Rate Swap | Long-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	(30,084)	(114,991)
Prepaid forward contracts | Long-term liabilities under derivative contracts
Derivatives, Fair Value [Line Items]
Liability Derivatives	$ (60,868)	$ (161,942)

DERIVATIVE CONTRACTS AND COLL_4

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Derivative [Line Items]
Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments	$ 101,074	$ (53,565)
Change in the fair value of Comcast common stock included in gain (loss) on investments	(150,773)	73,453
Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments	123,147	75,653
Notes related to derivative contracts
Derivative [Line Items]
Gain (Loss) on Price Risk Derivative Instruments Not Designated as Hedging Instruments	$ 101,074	$ (53,565)

DERIVATIVE CONTRACTS AND COLL_5

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap	Mar. 31, 2022USD ($)
Derivative Instrument Maturity Date 2025, Fixed 1.53%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Company Pays	1.53%
Derivative Instrument Maturity Date 2025, Fixed 1.625
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Company Pays	1.625%
Derivative Instrument Maturity Date 2025, Fixed 1.458%
Derivative [Line Items]
Derivative, Notional Amount	$ 500,000,000
Company Pays	1.458%
Derivative Instrument Maturity Date 2026, Fixed 2.9155%
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000,000
Company Pays	2.9155%
Derivative Instrument Maturity Date 2026, Fixed 2.9025%
Derivative [Line Items]
Derivative, Notional Amount	$ 750,000,000
Derivative Instrument Maturity Date 2026, Fixed 2.9025%
Derivative [Line Items]
Company Pays	2.9025%

DERIVATIVE CONTRACTS AND COLL_6

DERIVATIVE CONTRACTS AND COLLATERALIZED INDEBTEDNESS - Settlements of Collateralized Indebtedness (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended
	Jan. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Derivative [Line Items]
Number of shares (in shares)	5,337,750
Notes Payable that will be reclassed to collateralized debt upon maturity		$ 59,451
Proceeds from Issuance of Secured Debt		0	$ 185,105
Comcast Synthetic Monetization Closeout
Derivative [Line Items]
Proceeds from Issuance of Secured Debt		$ 185,105

FAIR VALUE MEASUREMENT - Assets

FAIR VALUE MEASUREMENT - Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Carrying Amount
Liabilities:
Debt, fair value	$ 26,203,749	$ 26,328,025
Estimated Fair Value
Liabilities:
Debt, fair value	25,040,459	26,449,620
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Credit facility debt | CSC Holdings
Liabilities:
Debt, fair value	8,318,764	8,495,611
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Secured Debt [Member] | CSC Holdings
Liabilities:
Debt, fair value	1,716,600	1,706,997
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Senior guaranteed notes and senior secured notes | CSC Holdings
Liabilities:
Debt, fair value	8,078,369	8,077,372
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Senior notes | CSC Holdings
Liabilities:
Debt, fair value	7,957,142	7,950,241
Fair Value, Inputs, Level 2 [Member] | Carrying Amount | Notes payable and supply chain financing | CSC Holdings
Liabilities:
Debt, fair value	132,874	97,804
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Credit facility debt | CSC Holdings
Liabilities:
Debt, fair value	8,366,750	8,546,438
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Secured Debt [Member] | CSC Holdings
Liabilities:
Debt, fair value	1,727,051	1,741,710
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Senior guaranteed notes and senior secured notes | CSC Holdings
Liabilities:
Debt, fair value	7,610,688	8,180,813
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Senior notes | CSC Holdings
Liabilities:
Debt, fair value	7,203,109	7,883,071
Fair Value, Inputs, Level 2 [Member] | Estimated Fair Value | Notes payable and supply chain financing | CSC Holdings
Liabilities:
Debt, fair value	132,861	97,588
Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 1 [Member]
Assets:
Investment securities		2,161,937
Prepaid forward contracts | Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 2 [Member]
Assets:
Derivative asset	0	0
Liabilities:
Derivative liability	60,868	161,942
Interest rate swap contracts | Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 2 [Member]
Assets:
Derivative asset	53,539	2,993
Liabilities:
Derivative liability	30,084	118,432
Money market funds | Fair Value Measured on a Recurring Basis | Fair Value, Inputs, Level 1 [Member]
Assets:
Money market funds	$ 131,259	$ 100,015

INCOME TAXES - Income Tax Expen

INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Income Tax Expense (Benefit)	$ 82,846	$ 112,007
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	284,987	390,546
CSC Holdings
Income Tax Expense (Benefit)	82,846	112,007
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 284,987	$ 390,546

SHARE-BASED COMPENSATION - Stoc

SHARE-BASED COMPENSATION - Stock Option Activity (Details) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Weighted Average Exercise Price Per Share
Share based compensation expense	$ 40,532,000	$ 28,281,000
Share based compensation - Unrecognized deferred compensation cost	265,570,000
Grant date fair value of award units	$ 29,000,000
2017 LTIP
Weighted Average Exercise Price Per Share
Beginning balance (in dollars per share)	$ 22.51
Granted (in dollars per share)	14.01
Forfeited (in dollars per share)	22.63
Ending balance (in dollars per share)	22.30
Options exercisable (in dollars per share)	$ 24.23
Options outstanding, Weighted Average Remaining Contractual Term (in years)	7 years 11 months 15 days	8 years 3 months 14 days
Options exercisable, Weighted Average Remaining Contractual Term (in years)	6 years 4 months 9 days
Options outstanding, Aggregate Intrinsic Value	$ 276,000		$ 6,801,000
Options exercisable, Aggregate Intrinsic Value	$ 0
2017 LTIP | Share-based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Beginning balance (in shares)	50,998,816
Forfeited (in shares)	(927,472)
Ending balance (in shares)	51,355,977
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Granted	1,284,633
Options exercisable (in shares)	19,713,832
Weighted Average Exercise Price Per Share
Share based compensation expense	$ 22,497,000	$ 24,223,000
Share based compensation - Unrecognized deferred compensation cost	$ 130,916,000
Expected time (in years) unrecogized compensation costs relating to share based awards will be recognized	2 years 6 months 7 days
Contingent shares subject to shareholder approval	13,147,405
2017 LTIP | Performance Shares
Weighted Average Exercise Price Per Share
Share based compensation expense	$ 2,026,000	2,982,000
Share based compensation - Unrecognized deferred compensation cost	40,931,000
2019 LTIP | Restricted Stock
Weighted Average Exercise Price Per Share
Share based compensation expense	16,009,000	$ 317,000
Share based compensation - Unrecognized deferred compensation cost	$ 93,723,000
2021 Lightpath Incentive Plan | Class A-1 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (in shares)	433,225
2021 Lightpath Incentive Plan | Class A-2 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Granted (in shares)	231,928

SHARE-BASED COMPENSATION - Fair

SHARE-BASED COMPENSATION - Fair Value Assumptions For Stock Options (Details)	3 Months Ended
	Mar. 31, 2022$ / shares
Share-based Payment Arrangement [Abstract]
Risk-free interest rate	1.93%
Expected life (in years)	6 years 1 month 28 days
Dividend yield	0.00%
Volatility	37.09%
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value	$ 4.50

SHARE-BASED COMPENSATION - Perf

SHARE-BASED COMPENSATION - Performance and Restricted Unit Award (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Document Period End Date	Mar. 31, 2022
Share based compensation expense	$ 40,532	$ 28,281
Share based compensation - Unrecognized deferred compensation cost	265,570
Carry Unit Plan | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	0	759
Share based compensation - Unrecognized deferred compensation cost	$ 0
2017 LTIP | Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (shares)	6,876,210		6,617,837
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(416,484)
Forfeited (in shares)	(158,111)
Contingent shares subject to shareholder approval			5,023,530
2017 LTIP | Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Forfeited (in shares)	(927,472)
Expected time (in years) unrecogized compensation costs relating to share based awards will be recognized	2 years 6 months 7 days
Share based compensation expense	$ 22,497	24,223
Share based compensation - Unrecognized deferred compensation cost	$ 130,916
Contingent shares subject to shareholder approval	13,147,405
2017 LTIP | Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-option equity instruments, outstanding (shares)	6,198,273		6,361,894
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	(163,621)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 10.65
Share based compensation expense	$ 2,026	2,982
Share based compensation - Unrecognized deferred compensation cost	$ 40,931
2017 LTIP | Performance Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected time (in years) unrecogized compensation costs relating to share based awards will be recognized	3 years 9 months 29 days
2019 LTIP | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense	$ 16,009	$ 317
Share based compensation - Unrecognized deferred compensation cost	$ 93,723

SHARE-BASED COMPENSATION - Ligh

SHARE-BASED COMPENSATION - Lightpath Plan Activity (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022USD ($)shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Grant date fair value of award units | $	$ 29,000
2021 Lightpath Incentive Plan | Class A-1 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	433,225
2021 Lightpath Incentive Plan | Class A-2 management incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross	231,928

AFFILIATE AND RELATED PARTY T_3

AFFILIATE AND RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Related Party Transaction [Line Items]
Related party expense	$ 7,075	$ 2,001

AFFILIATE AND RELATED PARTY T_4

AFFILIATE AND RELATED PARTY TRANSACTIONS - Revenue and Related Charges (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Related Party Transaction [Line Items]
Revenue	$ 638	$ 3,406
Operating expenses:
Programming and other direct costs	(4,618)	(2,228)
Other operating expenses, net	(3,095)	(3,179)
Operating expenses, net	(7,713)	(5,407)
Net charges	(7,075)	(2,001)
Capital Expenditures	$ 11,838	$ 10,621

AFFILIATE AND RELATED PARTY T_5

AFFILIATE AND RELATED PARTY TRANSACTIONS - Amounts Due From and Due to Related Parties (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Jun. 30, 2021	Dec. 31, 2021
Related Party Transaction [Line Items]
Treasury Stock, Shares, Acquired	20,209		20,887
Payments for Repurchase of Common Stock	$ 0	$ 503,645
Share based compensation expense	40,532	28,281
Related party expense	7,075	2,001
Stock options | 2017 LTIP
Related Party Transaction [Line Items]
Share based compensation expense	22,497	24,223
Restricted Stock | 2019 LTIP
Related Party Transaction [Line Items]
Share based compensation expense	16,009	317
CSC Holdings
Related Party Transaction [Line Items]
Cash distributions to parent	0	(501,000)
Cash distributions	0	501,000
Non-cash distributions to parent		(748)
CSC Holdings | Member's Deficiency
Related Party Transaction [Line Items]
Cash distributions to parent		(501,000)
Non-cash distributions to parent	0	$ (748)
Affiliates
Related Party Transaction [Line Items]
Due from related parties and affiliates	3,830			$ 3,776
Due to related parties and affiliates	22,872			31,810
Affiliates | Altice Management Americas
Related Party Transaction [Line Items]
Due from related parties and affiliates	295			241
Affiliates | Other Related Party
Related Party Transaction [Line Items]
Due from related parties and affiliates	3,535			3,535
Due to related parties and affiliates	1,348			1,206
Affiliates | Altice Management International
Related Party Transaction [Line Items]
Due to related parties and affiliates	$ 21,524			$ 30,604

Uncategorized Items - atus-2022

Label	Element	Value
Noncontrolling Interest [Member]
Net Income (Loss) Attributable to Noncontrolling Interest	us-gaap_NetIncomeLossAttributableToNoncontrollingInterest	$ 4,403,000