DEBT - Schedule of Exchange Agreement (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Nov. 30, 2018	Nov. 27, 2018
Debt Instrument [Line Items]
Principal amount	$ 24,817,366,000	$ 23,296,581,000
Debt Instrument, Remaining Debt Post Exchange			$ 5,500,050,000
Debt Instrument, Premium Paid In Connection With Early Tender Of Notes			6,500,000	$ 6,500,000
Original Cequel Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Remaining Debt Post Exchange			$ 5,206,000