Intangible Assets, Net (Details) $ in Millions	12 Months Ended
	Sep. 30, 2016 USD ($) item	Sep. 25, 2015 USD ($)	Sep. 26, 2014 USD ($)
Finite-Lived Intangible Assets
Gross Carrying Amount	$ 2,668	$ 2,240
Accumulated Amortization	(789)	(685)
Net Carrying Amount	1,879	1,555
Finite-lived intangible assets acquired	$ 530
Number of Businesses Acquired | item	4
Finite-lived intangible assets, amortization expense	$ 149	153	$ 84
Aggregate amortization expense on intangible assets
Fiscal 2017	170
Fiscal 2018	170
Fiscal 2019	167
Fiscal 2020	160
Fiscal 2021	157
Thereafter	1,055
Customer relationships
Finite-Lived Intangible Assets
Gross Carrying Amount	1,332	1,053
Accumulated Amortization	(212)	(148)
Net Carrying Amount	1,120	905
Intellectual property
Finite-Lived Intangible Assets
Gross Carrying Amount	1,300	1,150
Accumulated Amortization	(563)	(524)
Net Carrying Amount	737	626
Other.
Finite-Lived Intangible Assets
Gross Carrying Amount	36	37
Accumulated Amortization	(14)	(13)
Net Carrying Amount	$ 22	$ 24