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Loss Contingency, Claims Settled, Number Of Companies

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Loss Contingency, Companies Settled With, Minimum Number

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Loss Contingency, Joint Stipulation Response Period

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Loss Contingency, Number Of Cases Remanded

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Loss Contingency, Number Of Statewide Classes For Certification

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Loss Contingency, Patents Unpatentable, Number

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Loss Contingency, Trial Period

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Patent Extension, Term

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Pediatric Exclusivity, Term

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Term for paying off environmental liabilities.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Estimate of reasonably possible loss exposure in excess of amount accrued for remediation, site restoration, postclosure, monitoring commitments, or other exit costs associated with the sale, disposal or abandonment of a particular property resulting from unanticipated contamination of the assets.

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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Number of another entity's patents that the entity has allegedly infringed.

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Number of pending claims pertaining to a loss contingency.

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Contingencies and Environmental Liabilities (Details) $ in Millions			1 Months Ended				2 Months Ended	5 Months Ended	6 Months Ended	12 Months Ended
	Mar. 13, 2025	Dec. 19, 2022	Apr. 30, 2025 patent	Aug. 31, 2024 case	Dec. 31, 2023 case	Jun. 30, 2023	May 31, 2023 patent	Oct. 31, 2024 patent	Nov. 30, 2025 patent	Dec. 31, 2025 USD ($) case company	Sep. 19, 2025	Jun. 30, 2025 patent	Mar. 11, 2025 case	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Loss contingency, joint stipulation response period											15 days
Environmental Loss Contingency Statement Of Financial Position Extensible Enumeration Not Disclosed Flag										liabilities
Accrued liabilities for environmental matters \| $										$ 42				$ 41
Term for paying off environmental liabilities										15 years
Aggregate possible expenditure on environmental matters in excess of amounts accrued \| $										$ 58
Legal Defense Costs
Loss Contingencies [Line Items]
Legal defense costs reserve \| $										$ 245				$ 225
Pending Litigation \| Patents - PGR Petition
Loss Contingencies [Line Items]
Number of patents allegedly infringed			12
Dr. Scholl's \| United States \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case										610
Gardasil/Gardasil 9 \| United States \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case										135
Gardasil/Gardasil 9 \| United States \| Motion for Summary Judgement Granted
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case													16
Gardasil/Gardasil 9 \| Int’l \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims \| case										15
Zetia \| United States \| Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, number of cases remanded \| case					4
Bravecto \| United States
Loss Contingencies [Line Items]
Loss contingency, number of statewide classes for certification \| case				5
Bridion \| Patents
Loss Contingencies [Line Items]
Loss contingency, claims settled, number of companies \| company										5
Bridion \| Pending Litigation \| Patents
Loss Contingencies [Line Items]
Loss contingency, trial period		1 day
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]
Number of patents allegedly infringed							9	9
Number of additional patents unpatentable									9
Subcutaneous Pembrolizumab \| Pending Litigation \| Patents
Loss Contingencies [Line Items]
Loss contingency, pending claims												1
Number of patents allegedly infringed			15
Subcutaneous Pembrolizumab \| Pending Litigation \| Patents - PGR Petition
Loss Contingencies [Line Items]
Loss contingency, pending claims												13
Subcutaneous Pembrolizumab \| Pending Litigation \| PGR Petition Process, Ineligible to be Challenged
Loss Contingencies [Line Items]
Loss contingency, pending claims			3