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INTANGIBLE ASSETS - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Intangible Assets [Line Items] |  |  |  |
In-process research and development impairments | $ 1,750 | $ 190 | $ 1,750 | $ 190
In Process Research and Development Bulevirtide | Discount Rate |  |  |  |
Intangible Assets [Line Items] |  |  |  |
Discount rate, measurement input (as a percent) |  | 8.25% |  | 8.25%

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