Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2012		Oct. 02, 2011		Sep. 30, 2012		Oct. 02, 2011
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 13,976		$ 16,609		$ 43,918		$ 49,118
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,976	[1]	4,027	[1]	10,025	[1]	12,078	[1]
Euro [Member] | Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 2,200		$ 3,000		$ 7,500		$ 9,100

[1] Developed Europe region includes the following markets: Western Europe, Finland and the Scandinavian countries. Revenues denominated in euros were $2.2 billion and $3.0 billion in the third quarter of 2012 and 2011, respectively, and $7.5 billion and $9.1 billion in the first nine months of 2012 and 2011, respectively.