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LEGAL PROCEEDINGS AND CONTINGENCIES (Details) $ in Millions, $ in Millions |  | 1 Months Ended | 38 Months Ended |  |  |  |  |  |  |  |
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Jul. 24, 2023 USD ($) lawsuit | Jan. 31, 2022 patent | Feb. 28, 2021 USD ($) | May 31, 2019 scientist | Oct. 31, 2017 scientist | Sep. 30, 2015 scientist patent | Mar. 31, 2010 USD ($) | Mar. 31, 2010 AUD ($) | Sep. 30, 2026 numberOfPayment | Jun. 30, 2023 USD ($) lawsuit | Feb. 17, 2023 lawsuit | Jun. 30, 2022 claim | Apr. 01, 2022 | Mar. 30, 2022 lawsuit | Nov. 30, 2021 acquirer | Jun. 30, 2021 USD ($) | Mar. 31, 2018 lawsuit
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Running royalty |  |  |  |  |  |  |  |  |  |  |  |  | 0.015 |  |  |  |
Damages sought | $ |  |  | $ 834 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class action claims |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |
Obligation to holders of the contingent value rights | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,400 |
Accrued liabilities for CERCLA matters | $ |  |  |  |  |  |  |  |  |  | $ 84 |  |  |  |  |  |  |
Bristol-Myers Squibb |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages sought | $ |  |  | $ 417 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Anti-PD-1 Antibody Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents | patent |  |  |  |  |  | 6 |  |  |  |  |  |  |  |  |  |  |
Number of scientists | scientist |  |  |  | 2 | 1 | 2 |  |  |  |  |  |  |  |  |  |  |
Plavix Australia Intellectual Property | Australia, Dollars |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages paid | $ |  |  |  |  |  |  |  | $ 449 |  |  |  |  |  |  |  |  |
Plavix Australia Intellectual Property | United States of America, Dollars |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages paid | $ |  |  |  |  |  |  | $ 297 |  |  |  |  |  |  |  |  |  |
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] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pending claims |  |  |  |  |  |  |  |  |  | 11 |  |  |  |  |  |  |
Class action claims |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |
Individual injury claims |  |  |  |  |  |  |  |  |  | 7 |  |  |  |  |  |  |
Pending claims, active |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |
Onglyza Product Liability Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Pending claims |  |  |  |  |  |  |  |  |  |  |  |  |  | 18 |  |  |
Molina Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dismissed cases | claim |  |  |  |  |  |  |  |  |  |  |  | 4 |  |  |  |  |
Class action claims | claim |  |  |  |  |  |  |  |  |  |  |  | 63 |  |  |  |  |
Opt-Out Entities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Class action claims |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |
Xspray |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of patents | patent |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Celgene Securities Class Action |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Putative claims |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2
AZ AB | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of litigations | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from legal settlements | $ | $ 560 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of payments | numberOfPayment |  |  |  |  |  |  |  |  | 4 |  |  |  |  |  |  |  |
Settlement amount | $ | $ 418 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Celgene Contingent Value Rights |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Legal Proceedings And Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Putative claims |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2
Number of acquirers | acquirer |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |
Written order staying the case, term (in days) |  |  |  |  |  |  |  |  |  |  | 200 days |  |  |  |  |  |

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