Restructuring and Cost Reduction Activities Restructuring and Cost Reduction Reserves Rollforward (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 02, 2016	Jan. 03, 2015
Restructuring Reserve [Roll Forward]
Liability, beginning balance	$ 110	$ 78
2015 restructuring charge	323	298
Cash payments	(271)	(256)
Non-cash charges and other	(74)	(10)
Liability, ending balance	88	110
Employee related cost
Restructuring Reserve [Roll Forward]
Liability, beginning balance	96	66
2015 restructuring charge	62	90
Cash payments	(116)	(84)
Non-cash charges and other	13	24
Liability, ending balance	55	96
Asset impairment
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0	0
2015 restructuring charge	18	21
Cash payments	0	0
Non-cash charges and other	(18)	(21)
Liability, ending balance	0	0
Asset related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0	0
2015 restructuring charge	103	37
Cash payments	(34)	(24)
Non-cash charges and other	(69)	(13)
Liability, ending balance	0	0
Other cost
Restructuring Reserve [Roll Forward]
Liability, beginning balance	14	12
2015 restructuring charge	140	150
Cash payments	(121)	(148)
Non-cash charges and other	0	0
Liability, ending balance	$ 33	$ 14