Restructuring - Summary of Severance Charges and Associated Spending (Details) - USD ($) $ in Millions	3 Months Ended					12 Months Ended
	Jan. 01, 2017	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Jan. 03, 2016	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
Restructuring Reserve [Roll Forward]
Restructuring (Note 22)						$ 491	$ 509	$ 0
Medical Devices
Restructuring Reserve [Roll Forward]
Reserve balance beginning				$ 501		501	590
2015 activity							(89)
Restructuring (Note 22)	$ 298	$ 109	$ 141	137	$ 590	685	590
Cash payments						556
Settled non cash						(249)
Reserve balance ending	381				501	381	501	590
Medical Devices | Severance
Restructuring Reserve [Roll Forward]
Reserve balance beginning				484		484	484
Restructuring (Note 22)						0
Cash payments						104
Settled non cash						0
Reserve balance ending	380				484	380	484	484
Medical Devices | Asset Write-offs
Restructuring Reserve [Roll Forward]
Reserve balance beginning				0		0	86
2015 activity							86
Restructuring (Note 22)						249
Cash payments						0
Settled non cash						(249)
Reserve balance ending	0				0	0	0	86
Medical Devices | Other
Restructuring Reserve [Roll Forward]
Reserve balance beginning				$ 17		17	20
2015 activity							(3)
Restructuring (Note 22)						436
Cash payments						452
Settled non cash						0
Reserve balance ending	$ 1				$ 17	$ 1	$ 17	$ 20