CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Income Statement [Abstract]
Net sales	$ 88,293	$ 78,351
Cost of sales	54,381	48,175
Gross margin	33,912	30,176
Operating expenses:
Research and development	3,407	2,871
Selling, general and administrative	4,231	3,946
Total operating expenses	7,638	6,817
Operating income	26,274	23,359
Other income/(expense), net	756	821
Income before provision for income taxes	27,030	24,180
Provision for income taxes	6,965	6,289
Net income	$ 20,065	$ 17,891
Earnings per share:
Basic (in dollars per share)	$ 3.92	$ 3.38
Diluted (in dollars per share)	$ 3.89	$ 3.36
Shares used in computing earnings per share:
Basic (in shares)	5,112,877	5,298,661
Diluted (in shares)	5,157,787	5,327,995
Cash dividends declared per share (in dollars per share)	$ 0.63	$ 0.57