Components of Other Intangible Assets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011 Year	Dec. 31, 2010
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	$ 706	$ 575
Accumulated Impairment and Amortization	(306)	(223)
Net Carrying Amount	400	352
Amortizable Intangible Assets | Core Technology
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life (years)	7
Gross Carrying Amount	92	94
Accumulated Impairment and Amortization	(55)	(43)
Net Carrying Amount	37	51
Amortizable Intangible Assets | Trademarks and Trade Names
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life (years)	16
Gross Carrying Amount	4	4
Accumulated Impairment and Amortization	(1)	(1)
Net Carrying Amount	3	3
Amortizable Intangible Assets | Customer relationships
Intangible Assets by Major Class [Line Items]
Weighted Average Useful Life (years)	8
Gross Carrying Amount	545	412
Accumulated Impairment and Amortization	(250)	(179)
Net Carrying Amount	295	233
Non Amortizable Intangible Assets | Trademarks and Trade Names
Intangible Assets by Major Class [Line Items]
Gross Carrying Amount	65	65
Net Carrying Amount	$ 65	$ 65