Exit or Disposal Activities (Exit Cost Reserve Rollforward) (Details) (Exit Costs [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 03, 2015
Restructuring Cost and Reserve [Line Items]
Beginning of period	$ 78
Restructuring Charges	298
Cash Payments	(256)
Non-cash Charges and Other	(10)	[1]
End of period	110
Restructuring Reserve	110
Employee Severance
Restructuring Cost and Reserve [Line Items]
Beginning of period	66
Restructuring Charges	90
Cash Payments	(84)
Non-cash Charges and Other	24	[1]
End of period	96
Restructuring Reserve	96
Asset Related Cost [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	0
Restructuring Charges	37
Cash Payments	(24)
Non-cash Charges and Other	(13)	[1]
End of period	0
Restructuring Reserve	0
Asset Impairment Charge [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	0
Restructuring Charges	21
Cash Payments	0
Non-cash Charges and Other	(21)	[1]
End of period	0
Restructuring Reserve	0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Beginning of period	12
Restructuring Charges	150
Cash Payments	(148)
Non-cash Charges and Other	0	[1]
End of period	14
Restructuring Reserve	$ 14

[1] (a) Employee related non-cash charges consist of pension curtailment benefit.