Annual report pursuant to Section 13 and 15(d)

Debt And Other Obligations (Term Loan And Guarantee, Capital Lease Obligations And Other Short-Term Obligations-Receivable Financing Arrangement) (Narrative 3) (Details)

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Debt And Other Obligations (Term Loan And Guarantee, Capital Lease Obligations And Other Short-Term Obligations-Receivable Financing Arrangement) (Narrative 3) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 25, 2010
Debt And Other Obligations [Line Items]    
Amount outstanding under capital lease obligations $ 26 $ 30
Capital Lease Obligations [Member]
   
Debt And Other Obligations [Line Items]    
Amount outstanding under capital lease obligations 26  
Gross amount of assets 23 23
Accumulated amortization of capital leases assets $ 12 $ 9