Restructuring and Cost Reduction Activities - Restructuring and Cost Reduction Reserves Rollforward (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Restructuring Reserve [Roll Forward]
Liability, beginning balance			$ 88
Restructuring charges	$ 72	$ 90	124	$ 158
Cash payments			(110)
Non-cash charges and other			(32)
Liability, ending balance	70		70
Employee related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance			55
Restructuring charges	6	16	20	33
Cash payments			(35)
Non-cash charges and other			0
Liability, ending balance	40		40
Asset impairment
Restructuring Reserve [Roll Forward]
Liability, beginning balance			0
Restructuring charges	16	18	16	18
Cash payments			0
Non-cash charges and other			(16)
Liability, ending balance	0		0
Asset related costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance			0
Restructuring charges	17	24	27	47
Cash payments			(11)
Non-cash charges and other			(16)
Liability, ending balance	0		0
Other costs
Restructuring Reserve [Roll Forward]
Liability, beginning balance			33
Restructuring charges	33	$ 32	61	$ 60
Cash payments			(64)
Non-cash charges and other			0
Liability, ending balance	$ 30		$ 30