INCOME TAXES - Income Tax Expense (Benefit) Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Expense (Benefit)	$ 33,890	$ 61,820	$ 116,736	$ 173,827
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	147,430	262,754	432,417	653,300
CSC Holdings
Income Tax Expense (Benefit)	33,890	59,523	116,736	171,530
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ 147,430	$ 262,754	$ 432,417	$ 653,300