CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 01, 2017	Mar. 26, 2016	Apr. 01, 2017	Mar. 26, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 11,029	$ 10,516	$ 28,920	$ 28,877
Other comprehensive income/(loss):
Change in foreign currency translation, net of tax effects of $(44), $(19), $32 and $0, respectively	214	120	(161)	18
Change in unrealized gains/losses on derivative instruments:
Change in fair value of derivatives, net of tax benefit/(expense) of $(25), $1, $(253) and $(37), respectively	(300)	(178)	1,168	109
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $311, $144, $100 and $210, respectively	(1,032)	(528)	(726)	(973)
Total change in unrealized gains/losses on derivative instruments, net of tax	(1,332)	(706)	442	(864)
Change in unrealized gains/losses on marketable securities:
Change in fair value of marketable securities, net of tax benefit/(expense) of $(256), $(530), $733 and $(22), respectively	464	969	(1,344)	47
Adjustment for net (gains)/losses realized and included in net income, net of tax expense/(benefit) of $7, $(27), $(4) and $(53), respectively	(13)	49	7	96
Total change in unrealized gains/losses on marketable securities, net of tax	451	1,018	(1,337)	143
Total other comprehensive income/(loss)	(667)	432	(1,056)	(703)
Total comprehensive income	$ 10,362	$ 10,948	$ 27,864	$ 28,174