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Contingencies (Details) $ in Millions |  |  |  | 1 Months Ended | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 24, 2025 patent | Mar. 13, 2025 | Apr. 13, 2023 patent | Dec. 31, 2023 case | Jun. 30, 2023 | Jun. 30, 2025 USD ($) company case proceeding | Jun. 02, 2025 patent | May 01, 2025 plaintiff | Apr. 07, 2025 | Mar. 21, 2025 plaintiff | Mar. 11, 2025 case | Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs in complaint | plaintiff |  |  |  |  |  |  |  | 6,000,000 |  | 7,000,000 |  |
Loss contingency, joint stipulation response period |  |  |  |  |  |  |  |  | 14 days |  |  |
Legal Defense Costs |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Legal defense costs reserve | $ |  |  |  |  |  | $ 255 |  |  |  |  |  | $ 225
Pending Litigation | Patents - PGR Petition |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of patents allegedly infringed | 12 |  |  |  |  |  |  |  |  |  |  |
Dr. Scholl's | U.S. | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | case |  |  |  |  |  | 575 |  |  |  |  |  |
Gardasil/Gardasil 9 | U.S. | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | case |  |  |  |  |  | 125 |  |  |  |  |  |
Gardasil/Gardasil 9 | U.S. | Motion for Summary Judgement Granted |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | case |  |  |  |  |  |  |  |  |  |  | 16 |
Gardasil/Gardasil 9 | Non-US | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | case |  |  |  |  |  | 15 |  |  |  |  |  |
Zetia | U.S. | Pending Litigation |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, number of cases remanded | case |  |  |  | 4,000,000 |  |  |  |  |  |  |  |
Bridion | Patents |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, claims settled, number of companies | company |  |  |  |  |  | 5 |  |  |  |  |  |
Bridion | Settled Litigation | Patents |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Patent extension, term |  | 5 years |  |  | 5 years |  |  |  |  |  |  |
Pediatric exclusivity, term |  | 6 months |  |  |  |  |  |  |  |  |  |
Januvia, Janumet, Janumet XR | Settled Litigation |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, companies settled with, minimum number | company |  |  |  |  |  | 24 |  |  |  |  |  |
Keytruda | Pending Litigation | Patents |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | proceeding |  |  |  |  |  | 8 |  |  |  |  |  |
Loss contingency, number of patents allegedly infringed |  |  | 9 |  |  |  |  |  |  |  |  |
Subcutaneous Pembrolizumab | Pending Litigation | Patents |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims |  |  |  |  |  |  | 10 |  |  |  |  |
Loss contingency, number of patents allegedly infringed | 15 |  |  |  |  |  |  |  |  |  |  |
Subcutaneous Pembrolizumab | Pending Litigation | Patents - PGR Petition |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims |  |  |  |  |  |  | 3 |  |  |  |  |
Subcutaneous Pembrolizumab | Pending Litigation | PGR Petition Process, Ineligible to be Challenged |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Loss contingency, pending claims | 3 |  |  |  |  |  |  |  |  |  |  |

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