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Financial Instruments and Risk Management - Effect on Consolidated Statements of Income of Derivative Instruments (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative $ 38 $ 29
Gain (loss) reclassified from OCI into earnings 33 (71)
Forward Contracts [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 14 11
Gain (loss) reclassified from OCI into earnings 13 (25)
Forward Contracts [Member] | Selling General and Administrative [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 2 1
Gain (loss) reclassified from OCI into earnings 2 (2)
Forward Contracts [Member] | Research and Development [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 10 9
Gain (loss) reclassified from OCI into earnings 13 (18)
Currency Options [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 1  
Gain (loss) reclassified from OCI into earnings   (1)
Currency Options [Member] | Research and Development [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 1  
Gain (loss) reclassified from OCI into earnings   (1)
Collars [Member] | Cost of Sales [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 6 5
Gain (loss) reclassified from OCI into earnings 3 (13)
Collars [Member] | Selling General and Administrative [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 1 1
Gain (loss) reclassified from OCI into earnings 1 (3)
Collars [Member] | Research and Development [Member] | Cash Flow Hedging [Member]
   
Derivative Instruments, Gain (Loss) [Line Items]    
Gain (loss) deferred OCI on derivative 3 2
Gain (loss) reclassified from OCI into earnings $ 1 $ (8)