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FAIR VALUE MEASUREMENTS - Additional Information (Details) € in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)	Mar. 04, 2021 EUR (€)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
In-process research and development impairments	$ 0	$ 1,750	$ 190	$ 4,180
Immunomedics | Fair Value, Nonrecurring | Level 3 | Fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future royalties	1,000		1,000		$ 900
Immunomedics | Fair Value, Nonrecurring | Level 3 | Carrying value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Future royalties	$ 1,100		$ 1,100		$ 1,100
Maximum
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign currency derivative contract maturities (in months)	18 months		18 months
Maximum | MYR GmbH
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration liability | €						€ 300

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