Contingencies and Certain Commitments - Patent Litigation (Details) $ in Millions	1 Months Ended
	Oct. 31, 2024 patent	Aug. 31, 2024 patent	Jul. 31, 2024 patent	Apr. 30, 2024 patent	Mar. 31, 2024 patent	Nov. 30, 2023 patent	Aug. 31, 2023 patent	Jun. 30, 2023 patent	May 31, 2023 patent	Apr. 30, 2023 patent	Sep. 30, 2022 patent	Aug. 31, 2022 patent	Jul. 31, 2022 patent	Sep. 29, 2024 USD ($)
Gain Contingencies [Line Items]
Threshold for disclosure of proceedings under environmental laws | $														$ 1
Mektovi [Member] | Pfizer Versus Several Generic Manufacturers [Member] | Patent Infringement [Member] | Pending Litigation [Member]
Gain Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon											6
Mektovi [Member] | Pfizer Versus Several Generic Manufacturers [Member] | Patent Infringement [Member] | Pending Litigation [Member] | Expiring 2030 [Member]
Gain Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon												2
Mektovi [Member] | Pfizer Versus Several Generic Manufacturers [Member] | Patent Infringement [Member] | Pending Litigation [Member] | Expiring 2033 [Member]
Gain Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon												2
Mektovi [Member] | Pfizer Versus Teva Pharmaceuticals, Inc. [Member] | Patent Infringement [Member] | Pending Litigation [Member]
Gain Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon								3
Mektovi [Member] | Pfizer Versus Teva Pharmaceuticals, Inc. [Member] | Patent Non-Infringement [Member] | Pending Litigation [Member] | Teva Pharmaceuticals, Inc [Member]
Gain Contingencies [Line Items]
Gain contingency, number of patents allegedly infringed upon												2
Comirnaty [Member] | Alnylam Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon									4
Comirnaty [Member] | ModernaTX U.S. Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon												3
Loss contingency, patents under review					2
Comirnaty [Member] | ModernaTX European Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon											2	2
Loss contingency, patents allegedly infringed and subsequently revoked						1
Loss contingency, patents ruled invalid and subsequently revoked			1
Comirnaty [Member] | Arbutus and Genevant U.S. Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon										5
Comirnaty [Member] | GlaxoSmithKline Biologics SA and GlaxoSmithKline LLC US Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon		3		5
Comirnaty [Member] | Pfizer, BioNTech and BioNTech Manufacturing GmbH Versus CureVac, Judgment of Non-Infringement [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents not infringed													3
Loss contingency, number of patents found infringed									3
Abrysvo [Member] | GlaxoSmithKline Biologics SA and GlaxoSmithKline LLC US Patent Infringement Case [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents allegedly infringed upon						2	4
Abrysvo [Member] | GlaxoSmithKline Biologics SA and GlaxoSmithKline LLC US Patent Infringement Case [Member] | Subsequent Event [Member]
Gain Contingencies [Line Items]
Loss contingency, number of patents not infringed	2