v2.4.0.8
Summary of Accounting Policies - Textual (Detail) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Summary Of Significant Accounting Policies [Line Items]      
Accrual for chargebacks reflected as direct reduction to Accounts receivable $ 87,000,000 $ 120,000,000  
Accrual for rebates included in Accrued and other current liabilities 1,600,000,000 1,800,000,000  
Depreciation expense 2,200,000,000 2,000,000,000 2,400,000,000
Advertising expenses 2,500,000,000 2,800,000,000 3,100,000,000
Capitalized Software [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Unamortized capitalized software costs $ 529,000,000 $ 428,000,000  
Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 3 years    
Minimum [Member] | Capitalized Software [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 6 years    
Minimum [Member] | Other capitalized software [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 3 years    
Maximum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 40 years    
Maximum [Member] | Capitalized Software [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 10 years    
Maximum [Member] | Other capitalized software [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of intangible assets 5 years    
Machinery and Equipment [Member] | Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of property, plant and equipment 3 years    
Machinery and Equipment [Member] | Maximum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of property, plant and equipment 15 years    
Building [Member] | Minimum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of property, plant and equipment 10 years    
Building [Member] | Maximum [Member]
     
Summary Of Significant Accounting Policies [Line Items]      
Estimated useful life of property, plant and equipment 50 years