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Other Income (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 29, 2012
Jul. 01, 2011
Jun. 29, 2012
Jul. 01, 2011
Component of Other Income, Nonoperating        
Total Other Income - Net $ 5 $ 0 $ 9 $ 5
Interest Income [Member]
       
Component of Other Income, Nonoperating        
Total Other Income - Net 1 1 3 2
Income from Real Estate [Member]
       
Component of Other Income, Nonoperating        
Total Other Income - Net 2 5 8 8
Miscellaneous Income (Expense) [Member]
       
Component of Other Income, Nonoperating        
Total Other Income - Net $ 2 $ (6) $ (2) $ (5)