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Fair Value Measurements (Details 1) (USD $)
In Millions
Jul. 03, 2011
Jan. 02, 2011
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets $ 489 $ 338
Derivatives designated as hedging instruments : Liabilities 1,050 1,088
Derivatives not designated as hedging instruments : Assets 597 19
Derivatives not designated as hedging instruments : Other Investments 1,371 1,165
Foreign exchange contracts [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 487 321
Derivatives designated as hedging instruments : Liabilities 646 586
Derivatives not designated as hedging instruments : Assets 28 19
Derivatives not designated as hedging instruments : Liabilities 27 39
Foreign exchange contracts [Member] | Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 0  
Derivatives designated as hedging instruments : Liabilities 0  
Derivatives not designated as hedging instruments : Assets 0  
Derivatives not designated as hedging instruments : Liabilities 0  
Foreign exchange contracts [Member] | Significant other observable inputs Level 2 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 487  
Derivatives designated as hedging instruments : Liabilities 646  
Derivatives not designated as hedging instruments : Assets 28  
Derivatives not designated as hedging instruments : Liabilities 27  
Foreign exchange contracts [Member] | Significant unobservable inputs Level 3 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 0  
Derivatives designated as hedging instruments : Liabilities 0  
Derivatives not designated as hedging instruments : Assets 0  
Derivatives not designated as hedging instruments : Liabilities 0  
Cross currency interest rate swaps [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 2 17
Derivatives designated as hedging instruments : Liabilities 404 502
Cross currency interest rate swaps [Member] | Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 0  
Derivatives designated as hedging instruments : Liabilities 0  
Cross currency interest rate swaps [Member] | Significant other observable inputs Level 2 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 2  
Derivatives designated as hedging instruments : Liabilities 404  
Cross currency interest rate swaps [Member] | Significant unobservable inputs Level 3 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 0  
Derivatives designated as hedging instruments : Liabilities 0  
Swiss Franc Option [Member]
   
Financial assets and liabilities at fair value    
Derivatives not designated as hedging instruments : Assets 569  
Swiss Franc Option [Member] | Significant other observable inputs Level 2 [Member]
   
Financial assets and liabilities at fair value    
Derivatives not designated as hedging instruments : Assets 569  
Quoted prices in active markets for identical assets and liabilities Level 1 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Liabilities 0  
Derivatives not designated as hedging instruments : Assets 0  
Derivatives not designated as hedging instruments : Other Investments 1,371  
Significant other observable inputs Level 2 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 489  
Derivatives designated as hedging instruments : Liabilities 1,050  
Derivatives not designated as hedging instruments : Assets 597  
Derivatives not designated as hedging instruments : Other Investments 0  
Significant unobservable inputs Level 3 [Member]
   
Financial assets and liabilities at fair value    
Derivatives designated as hedging instruments : Assets 0  
Derivatives designated as hedging instruments : Liabilities 0  
Derivatives not designated as hedging instruments : Other Investments $ 0