Productivity Plan Activity (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 08, 2012	Sep. 08, 2012
Restructuring Reserve [Roll Forward]
2012 restructuring and impairment charges		$ (7)
Productivity Plan
Restructuring Reserve [Roll Forward]
Liability as of December 31, 2011		276
2012 restructuring and impairment charges	83	193
Cash payments		(243)
Non-cash charges		(66)
Liability as of September 8, 2012	160	160
Productivity Plan | Severance And Other Employee Costs
Restructuring Reserve [Roll Forward]
Liability as of December 31, 2011		249
2012 restructuring and impairment charges		51
Cash payments		(173)
Non-cash charges		(7)
Liability as of September 8, 2012	120	120
Productivity Plan | Asset Impairment
Restructuring Reserve [Roll Forward]
Liability as of December 31, 2011
2012 restructuring and impairment charges		57
Cash payments
Non-cash charges		(57)
Liability as of September 8, 2012
Productivity Plan | Other Costs
Restructuring Reserve [Roll Forward]
Liability as of December 31, 2011		27
2012 restructuring and impairment charges		85
Cash payments		(70)
Non-cash charges		(2)
Liability as of September 8, 2012	$ 40	$ 40