Condensed Consolidated Financial Statement Details - Other Income/(Expense), Net (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Jun. 25, 2016	Jun. 27, 2015
Other Income and Expenses [Abstract]
Interest and dividend income	$ 1,036	$ 766	$ 2,963	$ 2,095
Interest expense	(409)	(201)	(1,006)	(495)
Other expense, net	(263)	(175)	(1,036)	(754)
Total other income/(expense), net	$ 364	$ 390	$ 921	$ 846