Segment, Geographic and Other Revenue Information - Revenues By Geographic Area (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Apr. 01, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]
Gains (Losses) on Sales of Assets	$ 490		$ 0
Revenues	13,500		14,885
Percentage Change in Revenue	(9.00%)
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	5,368		5,952
Percentage Change in Revenue	(10.00%)
Developed Europe [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	3,029	[1]	3,537	[1]
Percentage Change in Revenue	(14.00%)	[1]
Developed Rest Of World [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	2,172	[2]	2,612	[2]
Percentage Change in Revenue	(17.00%)	[2]
Emerging Markets [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 2,931	[3]	$ 2,784	[3]
Percentage Change in Revenue	5.00%	[3]

[1] Developed Europe region includes the following markets: Western Europe, Finland and the Scandinavian countries. Revenues denominated in euros were $2.3 billion in the first quarter of 2013 and $2.6 billion in the first quarter of 2012.

[2] Developed Rest of World region includes the following markets: Australia, Canada, Japan, New Zealand and South Korea.

[3] Emerging Markets region includes, but is not limited to, the following markets: Asia (excluding Japan and South Korea), Latin America, the Middle East, Eastern Europe, Africa, Turkey and Central Europe.