Restructuring and Cost Reduction Activities - Restructuring and Cost Reduction Reserves Rollforward (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Restructuring Reserve [Roll Forward]
Liability, beginning balance	$ 131
Restructuring charges	142	$ 52
Cash payments	(55)
Non-cash charges and other	(14)
Liability, ending balance	204
Employee related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	102
Restructuring charges	111	14
Cash payments	(16)
Non-cash charges and other	(4)
Liability, ending balance	193
Asset impairment
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Restructuring charges	0	0
Cash payments	0
Non-cash charges and other	0
Liability, ending balance	0
Asset related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Restructuring charges	10	10
Cash payments	0
Non-cash charges and other	(10)
Liability, ending balance	0
Other costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	29
Restructuring charges	21	$ 28
Cash payments	(39)
Non-cash charges and other	0
Liability, ending balance	$ 11