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Derivative Instruments and Fair Value Measurements (Fair Value of Long-term Debt) (Details) (USD $)
In Millions
Oct. 01, 2011
Jan. 01, 2011
Derivative Instruments and Fair Value Measurements [Abstract]  
Long-term debt, Fair Value$ 6,134 
Long-term debt, Carrying Value$ 5,300$ 4,908[1]
[1]* Condensed from audited financial statements.