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Identifiable Intangible Assets - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets useful life		8 years
Amortization of intangible assets	$ 588	$ 616	$ 732
2025	491
2026	496
2027	533
2028	516
2029	448
Impairment of intangible assets excluding goodwill	$ 251	350	$ 355
Impairment, Intangible Asset, Statement of Income or Comprehensive Income [Extensible Enumeration]			Intangible Assets Impairments
Change In Tevas Commercial Plans Regarding Certain Program [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			$ 108
Minimum [Member] \| Measurement input, discount rate [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination, contingent consideration, liability, measurement input	8.5
Maximum [Member] \| Measurement input, discount rate [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination, contingent consideration, liability, measurement input	11
Generic Pipeline Products [Member] \| In Process Research And Development To Product Rights [Member] \| Development Progress And Changes In Other Key Valuation Assumptions [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill	$ 57	90	$ 45
In process research and development [Member] \| Minimum [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination, contingent consideration, liability, measurement input			8.25
In process research and development [Member] \| Maximum [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination, contingent consideration, liability, measurement input			10
In process research and development [Member] \| Maximum [Member] \| Measurement input, discount rate [Member]
Finite-Lived Intangible Assets [Line Items]
Business combination, contingent consideration, liability, measurement input			90
Identifiable product rights [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill	$ 194	260	$ 310
Identifiable product rights [Member] \| Regulatory Price And Volume Of Products [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill		148
Identifiable product rights [Member] \| Updated Market Assumptions [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill		$ 112	256
Identifiable product rights [Member] \| Change In Tevas Commercial Plans Regarding Certain Program [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets excluding goodwill			$ 54