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Loss Contingency, Companies Settled With, Minimum Number

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Loss Contingency, Motion For Summary Judgements Granted, Number

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Loss Contingency, Number Of Cases Remanded

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Loss Contingency, Patents Unpatentable, Number

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Loss Contingency, Patents Unpatentable, Number Of Appeals Issues

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Loss Contingency, Patents Unpatentable, Number Of Possible Appeals

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Number Of Plaintiffs In Complaint

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Patent Extension, Term

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Pediatric Exclusivity, Term

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Aggregate carrying amount of the estimated litigation liability for known or estimated probable loss from litigation, which may include attorneys' fees and other litigation costs.

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Number of plaintiffs that have filed claims pertaining to a loss contingency.

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Contingencies (Details) $ in Millions			1 Months Ended				2 Months Ended	5 Months Ended		9 Months Ended
Contingencies (Details) $ in Millions	Apr. 24, 2025 patent	Mar. 13, 2025	Nov. 30, 2025 patent	Dec. 31, 2023 case	Jul. 31, 2023 motion	Jun. 30, 2023	May 31, 2023 patent	Oct. 31, 2025 patent interest_rate_swap	Oct. 31, 2024 patent	Sep. 30, 2025 USD ($) case plaintiff company	Sep. 19, 2025	Jul. 11, 2025 plaintiff	Jun. 02, 2025 patent	May 01, 2025 plaintiff	Apr. 07, 2025	Mar. 21, 2025 plaintiff	Mar. 11, 2025 case	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Number of plaintiffs in complaint \| plaintiff												6		6,000,000		7,000,000
Loss contingency, joint stipulation response period											15 days				14 days
Legal Defense Costs
Loss Contingencies [Line Items]
Legal defense costs reserve \| $										$ 220								$ 225
Pending Litigation \| Commercial and Other Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| plaintiff										2
Loss contingency, number of plaintiffs \| plaintiff										2
Pending Litigation \| Patents - PGR Petition
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed	12
U.S. \| Settled Litigation \| Qui Tam
Loss Contingencies [Line Items]
Loss contingency, new claims filed, number \| motion					2
Dr. Scholl's \| U.S. \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case										605
Gardasil/Gardasil 9 \| U.S. \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case										135
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 \| Patents \| Subsequent Event
Loss Contingencies [Line Items]
Loss contingency, number of appeals issued								2
Loss contingency, number of possible appeals \| interest_rate_swap								4
Keytruda \| Patents \| Forecast
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed			3
Keytruda \| Pending Litigation \| Patents
Loss Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed							9		9
Keytruda \| Pending Litigation \| Patents \| Subsequent Event
Loss Contingencies [Line Items]
Number of additional patents unpatentable								6
Subcutaneous Pembrolizumab \| Pending Litigation \| Patents
Loss Contingencies [Line Items]
Loss contingency, pending claims													3
Loss contingency, number of patents allegedly infringed	15
Subcutaneous Pembrolizumab \| Pending Litigation \| Patents - PGR Petition
Loss Contingencies [Line Items]
Loss contingency, pending claims													10
Subcutaneous Pembrolizumab \| Pending Litigation \| PGR Petition Process, Ineligible to be Challenged
Loss Contingencies [Line Items]
Loss contingency, pending claims	3