Segments of Business and Geographic Areas (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jun. 28, 2015	Jul. 03, 2016	Jun. 28, 2015
Sales by geographic area
Sales	$ 18,482	$ 17,787	$ 35,964	$ 35,161
Percentage Change In Sales By Geographic Area	3.90%		2.30%
UNITED STATES
Sales by geographic area
Sales	$ 9,572	8,911	$ 18,893	17,603
Percentage Change In Sales By Geographic Area	7.40%		7.30%
Europe
Sales by geographic area
Sales	$ 4,090	4,151	$ 7,937	8,191
Percentage Change In Sales By Geographic Area	(1.50%)		(3.10%)
Western Hemisphere, excluding U.S.
Sales by geographic area
Sales	$ 1,542	1,501	$ 2,873	3,140
Percentage Change In Sales By Geographic Area	2.70%		(8.50%)
Asia-Pacific, Africa
Sales by geographic area
Sales	$ 3,278	3,224	$ 6,261	6,227
Percentage Change In Sales By Geographic Area	1.70%		0.50%
Medical Devices [Member]
Sales by geographic area
Sales	$ 6,409	6,358	$ 12,518	12,616
Medical Devices [Member] | UNITED STATES
Sales by geographic area
Sales	$ 3,044	$ 3,013	$ 6,070	$ 5,975