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LEGAL PROCEEDINGS AND CONTINGENCIES (Details) $ in Millions, $ in Millions	1 Months Ended					2 Months Ended
	Dec. 31, 2023 USD ($) lawsuit defendant plaintiff	Jan. 31, 2022 patent	Feb. 28, 2021 USD ($)	Mar. 31, 2010 AUD ($)	Mar. 31, 2010 USD ($)	Nov. 30, 2023 lawsuit healthcare_system	Nov. 30, 2022 lawsuit	Jun. 30, 2022 claim	Apr. 01, 2022	Nov. 30, 2021 lawsuit acquirer	Jun. 30, 2021 USD ($)	Mar. 31, 2018 lawsuit
Legal Proceedings And Contingencies [Line Items]
Damages sought \| $			$ 834
Class action claims							2
Obligation to holders of the contingent value rights \| $											$ 6,400
Running royalty									0.015
Number of healthcare systems \| healthcare_system						3
Future costs \| $	$ 80
Bristol-Myers Squibb
Legal Proceedings And Contingencies [Line Items]
Damages sought \| $			$ 417
Plavix Australia Intellectual Property \| Australia, Dollars
Legal Proceedings And Contingencies [Line Items]
Maximum damages \| $				$ 449
Plavix Australia Intellectual Property \| United States of America, Dollars
Legal Proceedings And Contingencies [Line Items]
Maximum damages \| $					$ 307
Xspray
Legal Proceedings And Contingencies [Line Items]
Number of patents \| patent		2
Abilify Product Liability \| NEW JERSEY
Legal Proceedings And Contingencies [Line Items]
Individual injury claims	11
Abilify Product Liability \| CANADA
Legal Proceedings And Contingencies [Line Items]
Individual injury claims	7
Pending claims	11
Class action claims	4
Pending claims, active	2
Celgene Securities Class Action
Legal Proceedings And Contingencies [Line Items]
Loss contingency, pending claims, number, putative class												2
Celgene Contingent Value Rights
Legal Proceedings And Contingencies [Line Items]
Loss contingency, pending claims, number, putative class										2
Loss contingency, number of acquirers \| acquirer										1
Molina Litigation
Legal Proceedings And Contingencies [Line Items]
Class action claims \| claim								63
Dismissed cases \| claim								4
Opt-Out Entities
Legal Proceedings And Contingencies [Line Items]
Class action claims	2
Mayo Clinic, LifePoint Corporate Services, and Intermountain Health
Legal Proceedings And Contingencies [Line Items]
Class action claims						2
Pomalyst Antitrust Class Action
Legal Proceedings And Contingencies [Line Items]
Loss contingency, number of plaintiffs \| plaintiff	1
Loss contingency, number of defendants \| defendant	2