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NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Acquisitions and Station Disposals (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2025 USD ($) | Sep. 30, 2024 USD ($) | Jul. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  |  |  | $ 25 | $ 0 |  |
Goodwill | $ 2,086 |  | $ 2,086 | 2,086 |  |  | $ 2,082
Disposed of by sale | Station Disposals |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Consideration | 36 |  | 36 | 36 |  | $ 36 |
Loss from disposal |  |  |  | 8 |  |  |
CPX Interactive LLC |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Acquisition of businesses, net of cash acquired |  | $ 30 |  |  |  |  |
Cash acquired |  | $ 5 |  |  |  |  |
Remaining percentage of business acquired |  | 0.75 |  |  |  |  |
Definite-lived intangible assets |  | $ 22 |  |  |  |  |
Goodwill |  | $ 17 |  |  |  |  |
WLNE |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Definite-lived intangible assets | 27 |  |  |  |  |  |
Asset purchase agreement consideration | 32 |  | 32 | 32 |  |  |
Property and equipment | 1 |  | 1 | 1 |  |  |
Net working capital | $ 4 |  | $ 4 | $ 4 |  |  |

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