CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue (including revenue from affiliates of $459, $1,471 and $2,368, respectively) (See Note 16)	$ 8,954,417	$ 9,237,064	$ 9,647,659
Costs and Expenses [Abstract]
Programming and other direct costs (including charges from affiliates of $11,645, $13,794 and $14,321, respectively) (See Note 16)	2,896,570	3,029,842	3,205,638
Other Cost and Expense, Operating	2,711,828	2,646,258	2,735,469
Restructuring, impairments and other operating items	23,696	214,727	130,285
Depreciation and amortization	1,642,231	1,644,297	1,773,673
Total operating expenses	7,274,325	7,535,124	7,845,065
Operating Income (Loss), Total	1,680,092	1,701,940	1,802,594
Nonoperating Income (Expense) [Abstract]
Interest expense, net	(1,763,166)	(1,639,120)	(1,331,636)
Gain (loss) on investments and sale of affiliate interests, net	670	180,237	(659,792)
Gain (loss) on derivative contracts, net	0	(166,489)	425,815
Gain on interest rate swap contracts, net	18,632	32,664	271,788
Gain (loss) on extinguishment of debt and write-off of deferred financing costs	(12,901)	4,393	(575)
Other income (expense), net	(5,675)	4,940	8,535
Total other income (expense)	(1,762,440)	(1,583,375)	(1,285,865)
Income (loss) before income taxes	(82,348)	118,565	516,729
Income tax benefit (expense)	4,071	(39,528)	(295,840)
Net income (loss)	(78,277)	79,037	220,889
Net income attributable to noncontrolling interests	(24,641)	(25,839)	(26,326)
Net income attributable to Altice USA stockholders	$ (102,918)	$ 53,198	$ 194,563
Earnings Per Share [Abstract]
Basic income (loss) per share	$ (0.22)	$ 0.12	$ 0.43
Basic weighted average common shares (in thousands)	459,888	454,723	453,244
Diluted income (loss) per share	$ (0.22)	$ 0.12	$ 0.43
Diluted weighted average common shares (in thousands)	459,888	455,034	453,282
Cash dividends declared per common share	$ 0	$ 0	$ 0