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Reorganization Of Businesses (Reorganization Of Businesses Accruals) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jul. 02, 2011
Jun. 30, 2012
Jul. 02, 2011
Restructuring Reserve [Roll Forward]      
Beginning balance   $ 44  
Additional Charges   26  
Adjustments   (1)  
Amount Used   (30)  
Ending balance   39  
Exit Costs [Member]
     
Restructuring Reserve [Roll Forward]      
Beginning balance   14  
Additional Charges   0  
Adjustments   3  
Amount Used   (5)  
Ending balance   12  
Employee Separation Costs [Member]
     
Restructuring Reserve [Roll Forward]      
Beginning balance   30  
Additional Charges   26  
Adjustments 1 (4) (2)
Amount Used   (25) (36)
Ending balance   $ 27