Identifiable Intangible Assets - Finite-lived and Indefinite-lived Intangible Assets (Detail) - USD ($) $ in Millions		Apr. 03, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		$ 76,436	$ 76,552
Finite-lived intangible assets, accumulated amortization	[1],[2]	(56,542)	(55,838)
Finite-lived intangible assets, net		19,894	20,714
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		9,922	4,432
Intangible assets, gross carrying amount	[1],[2]	86,358	80,984
Finite-lived intangible assets, accumulated amortization	[1],[2]	(56,542)	(55,838)
Identifiable Intangible Assets, less Accumulated Amortization	[1],[2]	29,816	25,146
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	[1]	8,122	3,092
License Agreements and Other [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	[1]	973	513
Developed technology rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		73,212	73,346
Finite-lived intangible assets, accumulated amortization		(54,397)	(53,732)
Finite-lived intangible assets, net		18,815	19,614
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(54,397)	(53,732)
Brands [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		922	922
Finite-lived intangible assets, accumulated amortization		(816)	(807)
Finite-lived intangible assets, net		106	115
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(816)	(807)
License Agreements and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		2,302	2,284
Finite-lived intangible assets, accumulated amortization		(1,329)	(1,299)
Finite-lived intangible assets, net		973	985
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		$ (1,329)	$ (1,299)

[1] The increase in the gross carrying amounts mainly reflect the impact of the acquisition of Arena. See Note 2A.

[2] The increase is primarily due to the acquisition of Arena, partially offset by amortization expense.