CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jul. 01, 2017	Jun. 30, 2018	Jul. 01, 2017
Income Statement [Abstract]
Net sales	$ 53,265	$ 45,408	$ 202,695	$ 176,655
Cost of sales	32,844	27,920	124,940	108,400
Gross margin	20,421	17,488	77,755	68,255
Operating expenses:
Research and development	3,701	2,937	10,486	8,584
Selling, general and administrative	4,108	3,783	12,489	11,447
Total operating expenses	7,809	6,720	22,975	20,031
Operating income	12,612	10,768	54,780	48,224
Other income/(expense), net	672	540	1,702	1,948
Income before provision for income taxes	13,284	11,308	56,482	50,172
Provision for income taxes	1,765	2,591	11,076	12,535
Net income	$ 11,519	$ 8,717	$ 45,406	$ 37,637
Earnings per share:
Basic (in dollars per share)	$ 2.36	$ 1.68	$ 9.07	$ 7.18
Diluted (in dollars per share)	$ 2.34	$ 1.67	$ 8.99	$ 7.14
Shares used in computing earnings per share:
Basic (in shares)	4,882,167	5,195,088	5,006,640	5,239,847
Diluted (in shares)	4,926,609	5,233,499	5,050,963	5,274,394
Cash dividends declared per share (in dollars per share)	$ 0.73	$ 0.63	$ 1.99	$ 1.77