Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details) (Gain (Loss) from Hedging Transactions)

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Financial Instruments (Details) (Gain (Loss) from Hedging Transactions) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2014
Jun. 29, 2013
Jun. 28, 2014
Jun. 29, 2013
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]        
Research and development $ (277) $ (308) $ (556) $ (620)
Marketing, general and administrative (154) (171) (310) (350)
Other income (expense), net (49) (2) (70) (5)
Contracts designated as cash flow hedging instruments
       
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net [Abstract]        
Other comprehensive income (loss) 5 (2) 4 (4)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]        
Research and development (1) 0 (2) 0
Marketing, general and administrative 0 0 (1) 0
Contracts not designated as hedging instruments
       
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net [Abstract]        
Other income (expense), net $ 1 $ (1) $ 0 $ (2)