Identifiable Intangible Assets - Finite-lived and Indefinite-lived Intangible Assets (Detail) - USD ($) $ in Millions		Apr. 02, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		$ 88,315	$ 88,763
Finite-lived intangible assets, accumulated amortization	[1]	(59,174)	(58,548)
Finite-lived intangible assets, net		29,141	30,215
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		12,860	13,155
Intangible assets, gross carrying amount	[1]	101,176	101,919
Finite-lived intangible assets, accumulated amortization	[1]	(59,174)	(58,548)
Identifiable Intangible Assets, less Accumulated Amortization	[1]	42,002	43,370
Brands [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		827	827
IPR&D [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		11,269	11,357
License Agreements and Other [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		764	971
Developed technology rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		84,973	85,604
Finite-lived intangible assets, accumulated amortization		(56,887)	(56,307)
Finite-lived intangible assets, net		28,086	29,297
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(56,887)	(56,307)
Brands [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		922	922
Finite-lived intangible assets, accumulated amortization		(854)	(844)
Finite-lived intangible assets, net		68	78
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(854)	(844)
License Agreements and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		2,420	2,237
Finite-lived intangible assets, accumulated amortization		(1,433)	(1,397)
Finite-lived intangible assets, net		987	841
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		$ (1,433)	$ (1,397)

[1] The decrease is primarily due to amortization expense and impairments (see Note 4).