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FAIR VALUE MEASUREMENTS - Additional Information (Details) € in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Mar. 04, 2021 EUR (€)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
In-process research and development impairments | $ 4,180 | $ 50 | $ 2,700 |
Write-off of finite-lived intangible asset | 2,400 | 2,300 | $ 1,800 |
Manufacturing Assets |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Write-off |  | 381 |  |
Fair Value, Nonrecurring | Galapagos |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Write-off of finite-lived intangible asset |  | 51 |  |
Immunomedics, Inc. | Fair Value, Nonrecurring | Level 3 | Fair value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Future royalties | 900 | 1,200 |  |
Immunomedics, Inc. | Fair Value, Nonrecurring | Level 3 | Carrying value |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Future royalties | $ 1,100 | $ 1,200 |  |
Maximum |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Foreign currency derivative contract maturities (in months) | 18 months |  |  |
Maximum | MYR |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |
Contingent consideration liability | € |  |  |  | € 300

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