Restructuring and Cost Reduction Activities - Restructuring and Cost Reduction Reserves Rollforward (Details) $ in Millions	9 Months Ended
	Oct. 03, 2015 USD ($)
Restructuring Reserve [Roll Forward]
Liability, beginning balance	$ 110
2015 restructuring charges	243
Cash payments	(219)
Non-cash charges and other	(61)
Liability, ending balance	73
Employee related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	96
2015 restructuring charges	64
Cash payments	(96)
Non-cash charges and other	(2)
Liability, ending balance	62
Asset impairment
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
2015 restructuring charges	18
Cash payments	0
Non-cash charges and other	(18)
Liability, ending balance	0
Asset related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
2015 restructuring charges	62
Cash payments	(21)
Non-cash charges and other	(41)
Liability, ending balance	0
Other costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance	14
2015 restructuring charges	99
Cash payments	(102)
Non-cash charges and other	0
Liability, ending balance	$ 11