v3.4.0.3
Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - Fair Value, Measurements, Recurring - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis $ 1,093 $ 1,670
Fair value of liabilities measured on a recurring basis 1,534 1,681
Short-term Investments | Equity Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis   265
Short-term Investments | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis   85
Other current assets | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis   250
Other Assets | Equity Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis 171  
Other Assets | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis 622 928
Other Assets | Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis 296 128
Other Assets | Net Investment Hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis 4 13
Other Assets | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis   1
Other Liabilities | Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis 1 19
Other Liabilities | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis 1,411 1,638
Other Liabilities | Forward Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis 118 24
Other Liabilities | Net Investment Hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis 2  
Other Current Liabilities | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis 2  
Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [1] 171 515
Level 1 | Short-term Investments | Equity Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [1]   265
Level 1 | Other current assets | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [1]   250
Level 1 | Other Assets | Equity Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [1] 171  
Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2] 922 1,155
Fair value of liabilities measured on a recurring basis [2] 1,534 1,681
Level 2 | Short-term Investments | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2]   85
Level 2 | Other Assets | Fixed Income Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2] 622 928
Level 2 | Other Assets | Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2] 296 128
Level 2 | Other Assets | Net Investment Hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2] 4 13
Level 2 | Other Assets | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of assets measured on a recurring basis [2]   1
Level 2 | Other Liabilities | Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis [2] 1 19
Level 2 | Other Liabilities | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis [2] 1,411 1,638
Level 2 | Other Liabilities | Forward Interest Rate Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis [2] 118 $ 24
Level 2 | Other Liabilities | Net Investment Hedges    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis [2] 2  
Level 2 | Other Current Liabilities | Cross Currency Swaps    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of liabilities measured on a recurring basis [2] $ 2  
[1] quoted prices in active markets for identical assets or liabilities
[2] observable inputs other than quoted prices in active markets for identical assets and liabilities