Intangible Assets and Goodwill (Details) - USD ($) $ in Millions	Mar. 29, 2020	Dec. 29, 2019
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	$ 12,625	$ 11,569
Total intangible assets - net	47,338	47,643
Trademarks
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	6,829	6,922
Purchased In-Process Research And Development
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	5,796	4,647
Patents And Trademarks
Intangible assets with definite lives:
Finite-Lived Intangible Assets, Gross	36,214	36,634
Less accumulated amortization	13,857	13,154
Finite-Lived Intangible Assets, Net	22,357	23,480
Customer relationships and other intangible assets
Intangible assets with definite lives:
Finite-Lived Intangible Assets, Gross	22,084	22,056
Less accumulated amortization	9,728	9,462
Finite-Lived Intangible Assets, Net	$ 12,356	$ 12,594