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Legal Settlements and Loss Contingencies - Additional Information (Detail) € in Millions, $ in Millions | 12 Months Ended |
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Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2023 EUR (€)
Loss Contingencies [Line Items] |  |  |  |
Legal settlements and loss contingencies, expense | $ 1,043 | $ 2,082 | $ 717 |
Accrued amount for legal settlements and loss contingencies | $ 4,771 | $ 4,186 |  | € 60.5
Settlement On Account Of Product Liability [Member] | United States [Member] |  |  |  |
Loss Contingencies [Line Items] |  |  |  |
Restructuring expense and income | Legal settlements and loss contingencies in 2021 were mainly related to an update of the estimated settlement provision recorded in connection with the remaining opioid cases, the provision for the carvedilol patent litigation as well as a liability which was substantially offset by insurance receivable related to the Ontario Teachers Securities Litigation discussed in note 12b. |  |  |

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