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Contingencies (Details) $ in Millions |  |  | 1 Months Ended | 6 Months Ended |
--- | --- | --- | --- | --- | ---
Mar. 15, 2024 | Apr. 13, 2023 patent | Feb. 29, 2024 patent | Jun. 30, 2023 | Feb. 28, 2023 patent | Jun. 30, 2024 USD ($) company case | Dec. 31, 2023 USD ($)
Legal Defense Costs |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Legal defense costs reserve | $ |  |  |  |  |  | $ 215 | $ 210
Gardasil/Gardasil 9 | Non-US | Pending Litigation |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, pending claims | case |  |  |  |  |  | 15 |
Bridion | Patents |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, claims settled |  |  |  |  |  | 5 |
Bridion | Pending Litigation | Patents |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, pending claims |  |  |  |  |  | 2 |
Postponement period resulting from litigation | 30 months |  |  |  |  |  |
Bridion | Settled Litigation | Patents |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Patent extension, term |  |  |  | 5 years |  |  |
Keytruda | Pending Litigation | Patents |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, number of patents allegedly infringed | patent |  | 9 |  |  |  |  |
Lynparza | Pending Litigation | Patents |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, number of patents allegedly infringed | patent |  |  | 1 |  | 1 |  |
Januvia/Janumet |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |
Loss contingency, claims settled |  |  |  |  |  | 26 |

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