LONG-TERM DEBT - Schedule of Long-term Debt (Details) - USD ($)							12 Months Ended
	Sep. 17, 2018	Aug. 16, 2018	Jun. 29, 2018	Jun. 14, 2018	Jan. 16, 2018	Jan. 04, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Feb. 04, 2019	Jun. 01, 2018	Mar. 26, 2018
Debt Instrument [Line Items]
Total Consolidated Secured Debt							$ 3,882,000	$ 13,283,883,000
Total debt							20,472,917,000	20,649,181,000
Long-term debt fees							(25,808,000)	(109,071,000)
Debt subject to compromise							15,149,477,000	0
Less: current portion							46,332,000	14,972,367,000
Total long-term debt							5,277,108,000	5,676,814,000
Draws on revolving credit facilities							143,332,000	100,000,000	$ 100,000,000
Payments on credit facilities							$ 258,308,000	25,909,000	$ 2,100,000
Interest Rate							8.75%
Write-off of deferred long-term debt fees							$ 67,079,000
Write-off of original issue discount on debt subject to compromise							131,100,000
Term Loan
Debt Instrument [Line Items]
Total Consolidated Secured Debt							0	6,300,000,000
Receivables Based Credit Facility Due 2019
Debt Instrument [Line Items]
Total Consolidated Secured Debt							0	405,000,000
DIP Facility
Debt Instrument [Line Items]
Total Consolidated Secured Debt							0	0
Draws on revolving credit facilities							125,000,000
Priority Guarantee Notes
Debt Instrument [Line Items]
Total Consolidated Secured Debt							$ 0	6,570,361,000
Interest Rate							9.00%
CCO Receivables Based Credit Facility Due 2023
Debt Instrument [Line Items]
Total Consolidated Secured Debt							$ 0	0
Other Secured Subsidiary Debt
Debt Instrument [Line Items]
Total Consolidated Secured Debt							3,882,000	8,522,000
14.0% Senior Notes Due 2021
Debt Instrument [Line Items]
Total debt							$ 0	$ 1,763,925,000
Interest Rate							14.00%	14.00%				14.00%
Legacy Notes
Debt Instrument [Line Items]
Total debt							$ 0	$ 475,000,000
10.0% Senior Notes Due 2018
Debt Instrument [Line Items]
Total debt							$ 0	$ 47,482,000
Interest Rate							10.00%	10.00%
Subsidiary Senior Notes
Debt Instrument [Line Items]
Total debt							$ 5,300,000,000	$ 5,300,000,000
Other Subsidiary Debt
Debt Instrument [Line Items]
Total debt							46,105,000	24,615,000
Purchase accounting adjustments and original issue discount
Debt Instrument [Line Items]
Total debt							$ (739,000)	(136,653,000)
Priority Guarantee Notes Due 2019
Debt Instrument [Line Items]
Interest Rate							9.00%
11.25% Priority Guarantee Notes due 2021
Debt Instrument [Line Items]
Interest Rate							11.25%
Priority Guarantee Notes Due 2022
Debt Instrument [Line Items]
Interest Rate							9.00%
10.625% Priority Guarantee Notes due 2023
Debt Instrument [Line Items]
Interest Rate							10.625%
Line of Credit | DIP Facility
Debt Instrument [Line Items]
Maximum borrowing capacity							$ 450,000,000.0
Letters of credit outstanding							70,200,000
Borrowing capacity							342,300,000
Secured debt | DIP Facility
Debt Instrument [Line Items]
Payments on credit facilities	$ 25,000,000	$ 100,000,000
Subsidiary Senior Notes
Debt Instrument [Line Items]
Total debt							5,300,000,000	5,300,000,000
Subsidiary Senior Notes | 7.625% Series A Senior Subordinated Notes Due 2020
Debt Instrument [Line Items]
Total debt							$ 275,000,000	$ 275,000,000
Interest Rate							7.625%	7.625%
Subsidiary Senior Notes | 7.625% Series B Senior Subordinated Notes Due 2020
Debt Instrument [Line Items]
Total debt							$ 1,925,000,000	$ 1,925,000,000
Interest Rate							7.625%	7.625%
Legacy Notes
Debt Instrument [Line Items]
Total debt							$ 475,000,000	$ 475,000,000
iHeartCommunications | 10.0% Senior Notes Due 2018
Debt Instrument [Line Items]
Repaid at maturity					$ 42,100,000	$ 5,300,000
iHeartCommunications | Line of Credit | DIP Facility
Debt Instrument [Line Items]
DIP Facility				$ 450,000,000.0
Draws on revolving credit facilities				125,000,000
iHeartCommunications | Secured debt | Receivables Based Credit Facility Due 2019
Debt Instrument [Line Items]
Payments on credit facilities				$ 306,400,000
iHeartCommunications | Senior Notes | 10.0% Senior Notes Due 2018
Debt Instrument [Line Items]
Senior notes exchanged for Priority Guarantee Notes					$ 42,100,000	$ 5,400,000
iHeartCommunications | Senior Notes | Legacy Notes Due 2018
Debt Instrument [Line Items]
Term loan							$ 175,000,000.0
Interest Rate							6.875%
iHeartCommunications | Senior Notes | Legacy Notes Due 2027
Debt Instrument [Line Items]
Term loan							$ 300,000,000.0
Interest Rate							7.25%
iHeartCommunications | Senior Notes | Legacy Notes Due 2016
Debt Instrument [Line Items]
Term loan							$ 57,100,000.0
Interest Rate							5.50%
LIBOR | iHeartCommunications | Line of Credit | DIP Facility
Debt Instrument [Line Items]
Basis spread on variable rate				2.25%
Revolving credit facility | iHeartCommunications | CCO Receivables Based Credit Facility Due 2023
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 125,000,000.0
Minimum incremental increase in capacity			$ 50,000,000
Revolving credit facility | iHeartCommunications | Receivables Based Credit Facility Due 2023
Debt Instrument [Line Items]
Maximum borrowing capacity											$ 75,000,000.0
Revolving credit facility | iHeartCommunications | Line of Credit | Receivables Based Credit Facility Due 2019
Debt Instrument [Line Items]
Payments on credit facilities				$ 74,300,000
Revolving credit facility | iHeartCommunications | Line of Credit | DIP Facility
Debt Instrument [Line Items]
DIP Facility				450,000,000
Revolving credit facility | iHeartCommunications | Line of Credit | CCO Receivables Based Credit Facility Due 2023
Debt Instrument [Line Items]
DIP Facility				$ 75,000,000
Maximum borrowing capacity							$ 125,000,000
Credit facility term			5 years
Letters of credit outstanding							94,400,000
Borrowing capacity							30,600,000
Availability Block Requirement | Line of Credit | DIP Facility
Debt Instrument [Line Items]
Borrowing capacity							37,500,000
Liabilities Subject To Compromise | Term Loan
Debt Instrument [Line Items]
Total Consolidated Secured Debt							6,300,000,000
Liabilities Subject To Compromise | Priority Guarantee Notes
Debt Instrument [Line Items]
Total Consolidated Secured Debt							1,750,000,000
Liabilities Subject To Compromise | Other Secured Subsidiary Debt
Debt Instrument [Line Items]
Total Consolidated Secured Debt							6,100,000
Liabilities Subject To Compromise | 14.0% Senior Notes Due 2021
Debt Instrument [Line Items]
Term loan							1,781,600,000.0
Liabilities Subject To Compromise | Legacy Notes
Debt Instrument [Line Items]
Term loan							475,000,000
Liabilities Subject To Compromise | Other Subsidiary Debt
Debt Instrument [Line Items]
Term loan							16,500,000.0
Liabilities Subject To Compromise | Priority Guarantee Notes Due 2019
Debt Instrument [Line Items]
Total Consolidated Secured Debt							1,999,800,000
Liabilities Subject To Compromise | 11.25% Priority Guarantee Notes due 2021
Debt Instrument [Line Items]
Total Consolidated Secured Debt							870,500,000
Liabilities Subject To Compromise | Priority Guarantee Notes Due 2022
Debt Instrument [Line Items]
Total Consolidated Secured Debt							1,000,000,000
Liabilities Subject To Compromise | 10.625% Priority Guarantee Notes due 2023
Debt Instrument [Line Items]
Total Consolidated Secured Debt							$ 950,000,000
Subsequent Event | Subsidiary Senior Notes | 7.625% Series A Senior Subordinated Notes Due 2020
Debt Instrument [Line Items]
Total debt										$ 275,000,000
Interest Rate										7.625%
Subsequent Event | Subsidiary Senior Notes | 7.625% Series B Senior Subordinated Notes Due 2020
Debt Instrument [Line Items]
Total debt										$ 1,925,000,000
Interest Rate										7.625%
Subsequent Event | Subsidiary Senior Notes | New CCWH Subordinated Notes
Debt Instrument [Line Items]
Total debt										$ 2,235,000,000
Interest Rate										9.25%