Quarterly report pursuant to Section 13 or 15(d)

(Details) (Gain (Loss) from Foreign Currency Forward Contracts)

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(Details) (Gain (Loss) from Foreign Currency Forward Contracts) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 30, 2013
Mar. 31, 2012
Contracts designated as cash flow hedging instruments
   
Foreign Currency Forward Contracts, Gain (Loss) [Line Items]    
Other comprehensive income (loss) $ (2) $ 2
Contracts not designated as hedging instruments
   
Foreign Currency Forward Contracts, Gain (Loss) [Line Items]    
Other income (expense), net $ (1) $ 1