Annual report pursuant to Section 13 and 15(d)

Debt and Other Obligations (Details) (Narrative - Capital Lease Obligations)

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Debt and Other Obligations (Details) (Narrative - Capital Lease Obligations) (USD $)
In Millions, unless otherwise specified
Dec. 29, 2012
Dec. 31, 2011
Capital Leased Assets [Line Items]    
Capital lease obligations $ 23 $ 26
Capital leased assets, gross 23 23
Capital leased assets, accumulated depreciation $ (14) $ (12)