Quarterly report pursuant to Section 13 or 15(d)

Composition of Certain Financial Statement Items Accounts Receivable (Details)

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Composition of Certain Financial Statement Items Accounts Receivable (Details) - USD ($)
$ in Millions
Mar. 26, 2017
Sep. 25, 2016
Accounts Receivable [Abstract]    
Trade, net of allowance for doubtful accounts of $1 and $1, respectively $ 4,177 $ 2,194
Long-term contracts 12 20
Other 12 5
Accounts receivable, net 4,201 2,219
Allowance for doubtful accounts related to trade receivables $ 1 $ 1