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EMERGENCE FROM VOLUNTARY REORGANIZATION UNDER CHAPTER 11 PROCEEDINGS (Details) - USD ($)	May 01, 2019	Dec. 31, 2020	Jul. 16, 2020	Dec. 31, 2019	Nov. 22, 2019	Aug. 07, 2019	Apr. 30, 2019	Jun. 14, 2018
Debt Instrument [Line Items]
Common stock, shares issued (in shares)		146,449,688
Number of securities called by warrants or rights (in shares)	81,453,648
New equity (as a percent)	99.10%
Pro rata share of interests	100.00%
Funding of guarantor general unsecured claims, settled in cash (as a percent)	14.44%
Pro rata share of new common stock (as a percent)	1.00%
Pro rata share of new common stock, distributed to legacy notes holders(as a percent)	0.10%
Funding of guarantor general unsecured recovery cash pool	$ 17,500,000
iHeart Operations, Inc.
Debt Instrument [Line Items]
Proceeds from issuance of preferred stock and preference stock	60,000,000.0
iHeartCommunications, Inc.
Debt Instrument [Line Items]
Debtor reorganization items, discharge of debt	16,000,000,000
Term Loan Facility \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	3,500,000,000
Stated interest rate (as a percent)						5.25%
6.375% Senior Secured Notes due 2026 \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 800,000,000	$ 800,000,000.0
Stated interest rate (as a percent)	6.375%	6.375%			6.375%	6.375%
8.375% Senior Unsecured Notes due 2027 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,450,000,000
Stated interest rate (as a percent)	8.375%	8.375%
Priority Guarantee Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)							9.00%
Priority Guarantee Notes Due 2021
Debt Instrument [Line Items]
Stated interest rate (as a percent)							11.25%
Asset-based Revolving Credit Facility Due 2023 \| Line of Credit
Debt Instrument [Line Items]
Debt instrument, face amount		$ 450,000,000.0
Maximum borrowing capacity		$ 450,000,000.0
Subsidiaries \| Term Loan Facility \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 3,500,000,000		$ 450,000,000.0
iHeartCommunications, Inc. \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	3,500,000,000
iHeartCommunications, Inc. \| 6.375% Senior Secured Notes due 2026 \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 800,000,000
Stated interest rate (as a percent)	6.375%
iHeartCommunications, Inc. \| 6.375% Senior Secured Notes due 2026 \| Senior Notes
Debt Instrument [Line Items]
Stated interest rate (as a percent)	6.375%
iHeartCommunications, Inc. \| 8.375% Senior Unsecured Notes due 2027 \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,450,000,000
Stated interest rate (as a percent)	8.375%
Class A Common Stock
Debt Instrument [Line Items]
Common stock, shares issued (in shares)	56,861,941	64,726,864		57,776,204
Class B Common Stock
Debt Instrument [Line Items]
Common stock, shares issued (in shares)	6,947,567	6,886,925		6,904,910
Minimum
Debt Instrument [Line Items]
Funding of guarantor general unsecured claims(as a percent)	45.00%
Maximum
Debt Instrument [Line Items]
Funding of guarantor general unsecured claims(as a percent)	55.00%
Revolving Credit Facility \| Asset-based Revolving Credit Facility Due 2023 \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 450,000,000
Revolving Credit Facility \| Subsidiaries \| Asset-based Revolving Credit Facility Due 2023 \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 450,000,000.0							$ 450,000,000.0
Revolving Credit Facility \| iHeartCommunications, Inc. \| Line of Credit
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 450,000,000
Management And Service Providers \| Common Stock \| Post Emergence Equity Plan \| Class A Common Stock
Debt Instrument [Line Items]
Number of shares authorized (in shares)	12,770,387
Number of shares authorized, fully diluted and distributed (as a percent)	8.00%
Director \| Common Stock \| Post Emergence Equity Plan \| Class A Common Stock
Debt Instrument [Line Items]
Number of shares authorized (in shares)	1,596,298
Number of shares authorized, fully diluted and distributed (as a percent)	1.00%
iHeartCommunications, Inc. \| CCOH
Debt Instrument [Line Items]
Post-petition intercompany balance, net	$ 33,200,000
CCOH
Debt Instrument [Line Items]
Total settlement amount paid	115,800,000
CCOH \| iHeartCommunications, Inc.
Debt Instrument [Line Items]
Payment of intercompany note	149,000,000.0
CCOH \| Revolving Loan Agreement \| iHeartCommunications, Inc.
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 200,000,000