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