Exit of Disposal Activities (Restructuring and Cost Reduction Reserves Rollforward) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 27, 2014
Restructuring Reserve Roll Forward
Restructuring reserve, beginning balance	$ 78
Restructuring costs incurred	224
Restructuring, cash payments	(163)
Non-cash Charges and Other	(18)
Restructuring reserve, ending balance	121
Employee related costs [Member]
Restructuring Reserve Roll Forward
Restructuring reserve, beginning balance	66
Restructuring costs incurred	74
Restructuring, cash payments	(40)
Non-cash Charges and Other	12
Restructuring reserve, ending balance	112
Asset related costs [Member]
Restructuring Reserve Roll Forward
Restructuring reserve, beginning balance	0
Restructuring costs incurred	16
Restructuring, cash payments	(7)
Non-cash Charges and Other	(9)
Restructuring reserve, ending balance	0
Asset Impairment [Member]
Restructuring Reserve Roll Forward
Restructuring reserve, beginning balance	0
Restructuring costs incurred	21
Restructuring, cash payments	0
Non-cash Charges and Other	(21)
Restructuring reserve, ending balance	0
Other costs [Member]
Restructuring Reserve Roll Forward
Restructuring reserve, beginning balance	12
Restructuring costs incurred	113
Restructuring, cash payments	(116)
Non-cash Charges and Other	0
Restructuring reserve, ending balance	$ 9