FINANCING ARRANGEMENTS - Schedule of Long-term Debt (Details) - USD ($)	Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Principal value	$ 48,986,000,000	$ 48,937,000,000
Unamortized basis adjustment from swap terminations	68,000,000	71,000,000
Unamortized bond discounts and issuance costs	(382,000,000)	(390,000,000)
Unamortized purchase price adjustments of Celgene debt	811,000,000	823,000,000
Total	49,506,000,000	49,431,000,000
Current portion of Long-term debt	3,349,000,000	1,828,000,000
Long-term debt	46,157,000,000	47,603,000,000
Interest rate swap contracts
Debt Instrument [Line Items]
Fair value of interest rate swap contracts	$ 23,000,000	$ (10,000,000)