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Contingencies (Details) $ in Millions				1 Months Ended	9 Months Ended
	Jan. 09, 2023	Dec. 19, 2022	Jun. 30, 2022 claim	Mar. 31, 2014 case	Sep. 30, 2022 USD ($) case claim	Dec. 31, 2021 USD ($)	Aug. 31, 2020 claim
Legal Defense Costs
Loss Contingencies [Line Items]
Legal defense costs reserve | $					$ 230	$ 230
Zetia antitrust litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims | claim							35
Zetia antitrust litigation | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, new claims filed | claim			23
Patent Infringement Lawsuit Against Zydus | Pending Litigation | Forecast
Loss Contingencies [Line Items]
Loss contingency, recovery from third party, bench trial period	3 days
Fosamax
Loss Contingencies [Line Items]
Loss contingency, pending claims					3,450
Fosamax | Femur Fracture Litigation | Federal
Loss Contingencies [Line Items]
Loss contingency, claims dismissed				650
Loss contingency, claims on appeal				515
Januvia | Cases Company Agreed To Toll Statute Of Limitations
Loss Contingencies [Line Items]
Loss contingency, pending claims | claim					50
Gardasil/Gardasil 9 | U.S.
Loss Contingencies [Line Items]
Loss contingency, pending claims					65
Gardasil/Gardasil 9 | Non-US
Loss Contingencies [Line Items]
Loss contingency, pending claims					15
Gardasil/Gardasil 9 | COLOMBIA
Loss Contingencies [Line Items]
Loss contingency, pending claims					1
Bridion | Patents
Loss Contingencies [Line Items]
Loss contingency, claims settled					5
Bridion | Patents | Pending Litigation
Loss Contingencies [Line Items]
Loss contingency, pending claims					2
Bridion | Patents | Pending Litigation | Forecast
Loss Contingencies [Line Items]
Loss contingency, trial period		1 day
Januvia and Janumet | Patents
Loss Contingencies [Line Items]
Loss contingency, claims settled					22

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