Acquisitions Goodwill and Acquired Intangible Assets - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended					12 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Kiva Systems, Inc	May 31, 2012 Kiva Systems, Inc	Dec. 31, 2012 One of acquired companies	Dec. 31, 2011 Series of Individually Immaterial Business Acquisitions	Dec. 31, 2011 One of acquired companies
Business Acquisition [Line Items]
Business acquisition, purchase price			$ 228	$ 678	$ 678		$ 771
Net sales						61
Net losses						(62)
Equity-method investment activity, net of tax	(155)	(12)	7					6
Purchase price, acquired goodwill			111	560			615
Purchase price, acquired intangible assets			91
Amortization expense for acquired intangibles	$ 163	$ 149	$ 105