Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Parenthetical) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 29, 2014		Jun. 30, 2013		Jun. 29, 2014		Jun. 30, 2013
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 12,773		$ 12,973		$ 24,126		$ 25,383
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,008	[1]	2,913	[1]	5,803	[1]	5,717	[1]
Euro Member Countries, Euro | Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 2,300		$ 2,200		$ 4,500		$ 4,300

[1] Developed Europe region includes the following markets: Western Europe, Finland and the Scandinavian countries. Revenues denominated in euros were $2.3 billion and $2.2 billion in the second quarter of 2014 and 2013, respectively, and $4.5 billion and $4.3 billion in the first six months of 2014 and 2013, respectively.