Components of Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2011 Year	Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 714	$ 575
Accumulated Impairment and Amortization	(287)	(223)
Net Carrying Amount	427	352
Amortizable Intangible Assets | Core Technology
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	7
Gross Carrying Amount	93	94
Accumulated Impairment and Amortization	(53)	(43)
Net Carrying Amount	40	51
Amortizable Intangible Assets | Trademarks and Trade Names
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	17
Gross Carrying Amount	4	4
Accumulated Impairment and Amortization	(1)	(1)
Net Carrying Amount	3	3
Amortizable Intangible Assets | Customer relationships
Finite-Lived Intangible Assets [Line Items]
Weighted Average Useful Life (years)	8
Gross Carrying Amount	552	412
Accumulated Impairment and Amortization	(233)	(179)
Net Carrying Amount	319	233
Non Amortizable Intangible Assets | Trademarks and Trade Names
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	65	65
Net Carrying Amount	$ 65	$ 65