CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2016	Sep. 26, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 45,687	$ 53,394	$ 39,510
Other comprehensive income/(loss):
Change in foreign currency translation, net of tax effects of $8, $201 and $50, respectively	75	(411)	(137)
Change in unrealized gains/losses on derivative instruments:
Change in fair value of derivatives, net of tax benefit/(expense) of $(7), $(441) and $(297), respectively	7	2,905	1,390
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $131, $630 and $(36), respectively	(741)	(3,497)	149
Total change in unrealized gains/losses on derivative instruments, net of tax	(734)	(592)	1,539
Change in unrealized gains/losses on marketable securities:
Change in fair value of marketable securities, net of tax benefit/(expense) of $(863), $264 and $(153), respectively	1,582	(483)	285
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $(31), $(32) and $71, respectively	56	59	(134)
Total change in unrealized gains/losses on marketable securities, net of tax	1,638	(424)	151
Total other comprehensive income/(loss)	979	(1,427)	1,553
Total comprehensive income	$ 46,666	$ 51,967	$ 41,063