Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Tax Credit Carryforward [Line Items]        
Valuation allowance recorded against deferred tax assets $ 345 $ 302    
Operating loss carry forwards expiration year, minimum 2030      
Operating loss carry forwards expiration year, maximum 2031      
Other non-US NOL expiry term between three years and indefinitely      
Ownership changes percentage 100.00%      
Increase in equity in case of ultimate realization of deferred tax assets 8      
Provision for withholding tax not recorded 1,347      
Additional provision for withholding tax not recorded 48      
Deferred tax liability 50 47    
US Federal statutory rate 35.00%      
Unrecognized tax benefits 24 23 25 57
Interest and penalties accrued (released) related to unrecognized tax benefits 2 (1) 0  
Total interest and penalties included in the ending balance of unrecognized tax benefits 6 4    
Unrecognized tax benefits, expected to be realized 1 2    
US Subsidiaries [Member]
        
Tax Credit Carryforward [Line Items]        
Deferred tax liability 1      
Unremitted earnings not considered permanent 35      
Non-US Subsidiaries [Member]
        
Tax Credit Carryforward [Line Items]        
Deferred tax liability 2      
Unremitted earnings not considered permanent 10      
Other Non-US [Member]
        
Tax Credit Carryforward [Line Items]        
NOL carry forwards 692      
Federal [Member]
        
Tax Credit Carryforward [Line Items]        
NOL carry forwards $ 179      
Internal Revenue Code [Member]
        
Tax Credit Carryforward [Line Items]        
Ownership changes percentage 5.00%      
Offering period of stock 3 years      
Internal Revenue Code [Member] | Minimum [Member]
        
Tax Credit Carryforward [Line Items]        
Beneficial ownership changes percentage 50.00%