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Accounting Policies (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 1 Months Ended
Dec. 28, 2013
Variable Interest Entity, Primary Beneficiary [Member]
Sep. 28, 2013
Variable Interest Entity, Primary Beneficiary [Member]
Jan. 31, 2014
Share Repurchase Program [Member]
Class A [Member]
Accounting Policies [Line Items]      
Stock Repurchase Program, Increase (Decrease) in Authorized Shares     25
Ownership interest percentage, investment in Dynamic Fuels, LLC joint venture 50.00%    
Variable interest entity total assets $ 160 $ 166  
Variable interest entity net property, plant and equipment 138 142  
Variable interest entity total liabilities 113 113  
Variable interest entity long-term debt $ 100 $ 100