XML 114 R58.htm IDEA: XBRL DOCUMENT v2.4.0.8
Casualty, Environmental and Other Reserves (Environmental and Other) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 27, 2013
sites
Dec. 28, 2012
Dec. 30, 2011
Dec. 31, 2010
Environmental Reserves [Member]
       
Contingencies [Line Items]        
Loss Contingency Accrual $ 100 $ 88 $ 83 $ 107
Environmental impaired site 244      
Other Reserves [Member]
       
Contingencies [Line Items]        
Loss Contingency Accrual $ 71 $ 64 $ 64 $ 59