Identifiable Intangible Assets, Net and Goodwill - Schedule of Finite-lived and Indefinite-lived Intangible Assets (Detail) - USD ($) $ in Millions		Mar. 30, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		$ 103,401	$ 103,397
Finite-lived intangible assets, accumulated amortization	[1]	(68,778)	(67,549)
Finite-lived intangible assets, net		34,622	35,848
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		19,353	19,563
Intangible assets, gross carrying amount	[1]	122,754	122,961
Finite-lived intangible assets, accumulated amortization	[1]	(68,778)	(67,549)
Identifiable Intangible Assets, less Accumulated Amortization	[1]	53,976	55,411
IPR&D [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets		18,893	18,893
License Agreements and Other [Member]
Indefinite-lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	[2]	460	670
Developed technology rights [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		99,404	99,397
Finite-lived intangible assets, accumulated amortization		(66,224)	(65,044)
Finite-lived intangible assets, net		33,180	34,353
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(66,224)	(65,044)
Brands [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		1,274	1,277
Finite-lived intangible assets, accumulated amortization		(1,001)	(992)
Finite-lived intangible assets, net		274	285
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		(1,001)	(992)
License Agreements and Other [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross carrying amount		2,722	2,724
Finite-lived intangible assets, accumulated amortization		(1,554)	(1,513)
Finite-lived intangible assets, net		1,169	1,210
Indefinite-lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization		$ (1,554)	$ (1,513)

[1] The decrease is primarily due to amortization expense of $1.2 billion.

[2] The decrease in the gross carrying amount reflects an impairment of $210 million (see Note 4).