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Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 3 Months Ended 12 Months Ended
Jun. 30, 2011
Mar. 31, 2010
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Mar. 31, 2013
Subsequent Event
Dec. 31, 2012
United States And Certain Foreign Jurisdictions
Dec. 31, 2012
Research and Development Tax Credit
Income Tax [Line Items]                
Other tax expense/ benefit $ 4              
Foreign net operating loss carryforwards resulting from an audit settlement in the first quarter of 2010   5            
Net operating loss carryforwards in the United States and certain foreign jurisdictions             39  
Operating loss carryforwards - Expiration date             2014 2029
Research and development tax credit carryforwards               25
Tax credit carryforwards recognized as deferred tax assets on balance sheet     32          
Deferred tax asset valuation allowance     9 0        
Tax credit carryforwards not recognized as deferred tax assets on balance sheet     23          
Deferred tax liability from foreign subsidiaries     881          
Tax liability related to uncertain tax positions     31 28 8      
Uncertain tax positions recognized as noncurrent liability on balance sheet     11          
Uncertain tax positions related to business acquisitions not recognized on balance sheet     20          
Interest accruals related to uncertain tax liabilities     1          
Tax benefit from subsequent event change in tax law           $ 4