Annual report pursuant to Section 13 and 15(d)

Composition of Certain Financial Statement Captions Accounts Receivable (Details)

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Composition of Certain Financial Statement Captions Accounts Receivable (Details) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2012
Sep. 25, 2011
Accounts Receivable [Line Items]    
Trade, net of allowances for doubtful accounts $ 1,418 $ 951
Long-term contracts 32 32
Other 9 10
Accounts receivable, net 1,459 993
Allowance for doubtful accounts $ 1 $ 2