Annual report pursuant to Section 13 and 15(d)

Financial Instruments (Details) (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Recorded at Fair Value)

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Financial Instruments (Details) (Schedule of Carrying Amounts and Estimated Fair Values of Financial Instruments Not Recorded at Fair Value) (USD $)
In Millions, unless otherwise specified
Dec. 29, 2012
Dec. 31, 2011
Carrying Amount
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term debt (excluding capital leases) $ 0 $ 485
Long-term debt, net of discount 2,019 1,505
Estimate Fair Value
   
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Short-term debt (excluding capital leases) 0 490
Long-term debt, net of discount $ 1,837 $ 1,619