Intangible assets and goodwill (Details) - USD ($) $ in Millions	Mar. 29, 2026	Dec. 28, 2025
Intangible assets with indefinite lives:
Total intangible assets — net	$ 49,061	$ 50,403
Trademarks
Intangible assets with indefinite lives:
Total intangible assets with indefinite lives	1,766	1,772
Purchased In-Process Research And Development
Intangible assets with indefinite lives:
Total intangible assets with indefinite lives	15,535	15,619
Patents And Trademarks
Intangible assets with definite lives:
Finite-lived intangible assets, gross	58,515	59,156
Less accumulated amortization	(32,939)	(32,507)
Finite-lived intangible assets, net	25,576	26,649
Customer relationships and other intangible assets
Intangible assets with definite lives:
Finite-lived intangible assets, gross	21,340	21,361
Less accumulated amortization	(15,156)	(14,998)
Finite-lived intangible assets, net	$ 6,184	$ 6,363

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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