Intangible Assets and Goodwill (Details) (USD $) In Millions, unless otherwise specified	Sep. 28, 2014	Dec. 29, 2013
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	$ 8,746	$ 8,774
Total intangible assets - net	26,304	27,947
Trademarks
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	7,425	7,619
Purchased In-Process Research And Development
Intangible assets with indefinite lives:
Indefinite-Lived Intangible Assets	1,321	1,155
Patents And Trademarks
Intangible assets with definite lives:
Finite-Lived Intangible Assets, Gross	8,991	9,164
Less accumulated amortization	4,614	4,146
Finite-Lived Intangible Assets, Net	4,377	5,018
Customer relationships and other intangible assets
Intangible assets with definite lives:
Finite-Lived Intangible Assets, Gross	18,256	19,027
Less accumulated amortization	5,075	4,872
Finite-Lived Intangible Assets, Net	$ 13,181	$ 14,155