Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies Operating Leases (Details)

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Commitments and Contingencies Operating Leases (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 25, 2016
Sep. 27, 2015
Sep. 28, 2014
Leases, Operating [Abstract]      
Description of Leasing Arrangements, Operating Leases The Company leases certain of its land, facilities and equipment under noncancelable operating leases, with terms ranging from less than one year to 21 years and with provisions in certain leases for cost-of-living increases.    
Operating Leases, Rent Expense $ 116 $ 99 $ 91
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
Operating lease payments due in next twelve months 94    
Operating lease payments due in year 2 74    
Operating lease payments due in year 3 58    
Operating lease payments due in year 4 43    
Operating lease payments due in year 5 33    
Operating lease payments due after year 5 $ 36