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LEGAL PROCEEDINGS AND CONTINGENCIES (Details) $ in Millions, $ in Millions		1 Months Ended					2 Months Ended
	May 21, 2024 USD ($)	Mar. 31, 2024 plaintiff	Dec. 31, 2023 defendant plaintiff	Feb. 28, 2021 USD ($)	Mar. 31, 2010 AUD ($)	Mar. 31, 2010 USD ($)	Nov. 30, 2023 healthcare_system lawsuit	Sep. 30, 2024 USD ($) lawsuit	Nov. 30, 2022 lawsuit	Jun. 30, 2022 claim	Nov. 30, 2021 acquirer lawsuit	Jun. 30, 2021 USD ($)	Mar. 31, 2018 lawsuit
Legal Proceedings and Contingencies [Line Items]
Damages sought \| $	$ 916			$ 834
Class action claims									2
Obligation to holders of the contingent value rights \| $												$ 6,400
Number of healthcare systems \| healthcare_system							3
Accrued liabilities for CERCLA matters \| $								$ 78
Bristol-Myers Squibb
Legal Proceedings and Contingencies [Line Items]
Damages sought \| $	$ 458			$ 417
Plavix Australia Intellectual Property
Legal Proceedings and Contingencies [Line Items]
Damages paid					$ 449	$ 310
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]
Putative claims													2
Celgene Contingent Value Rights
Legal Proceedings and Contingencies [Line Items]
Putative claims											2
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]
Number of plaintiffs \| plaintiff		1	1
Loss contingency, number of defendants \| defendant			2