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Income Taxes - Additional information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Taxes      
Other tax expense/ benefit $ 4,000,000    
Material discrete tax items reflected in the effective tax rate   0  
Tax benefit book gain recorded on previous equity investment     4,000,000
Tax credit carryforwards recognized as deferred tax assets on balance sheet 41,000,000    
Deferred tax asset valuation allowance 13,000,000 9,000,000  
Tax credit carryforwards not recognized as deferred tax assets on balance sheet 14,000,000    
Deferred tax liability from foreign subsidiaries 1,000,000,000    
Tax liability related to uncertain tax positions 34,000,000 31,000,000 28,000,000
Uncertain tax positions recognized as noncurrent liability on balance sheet 20,000,000    
Uncertain tax positions related to business acquisitions not recognized on balance sheet 14,000,000    
Interest accruals related to uncertain tax liabilities 1,000,000    
United States And Certain Foreign Jurisdictions
      
Income Taxes      
Net operating loss carryforwards in the United States and certain foreign jurisdictions 33,000,000    
Operating loss carryforwards - Expiration date 2014    
Research and Development Tax Credit
      
Income Taxes      
Operating loss carryforwards - Expiration date 2014    
Research and development tax credit carryforwards 22,000,000    
Deferred tax asset valuation allowance $ 11,000,000