CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Dec. 26, 2020	Dec. 28, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 28,755	$ 22,236
Other comprehensive income/(loss):
Change in foreign currency translation, net of tax	549	202
Change in unrealized gains/losses on derivative instruments, net of tax:
Change in fair value of derivatives	(304)	111
Adjustment for net (gains)/losses realized and included in net income	(183)	(398)
Total change in unrealized gains/losses on derivative instruments	(487)	(287)
Change in unrealized gains/losses on marketable debt securities, net of tax:
Change in fair value of marketable debt securities	628	125
Adjustment for net (gains)/losses realized and included in net income	(105)	(10)
Total change in unrealized gains/losses on marketable debt securities	523	115
Total other comprehensive income/(loss)	585	30
Total comprehensive income	$ 29,340	$ 22,266