CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Millions	3 Months Ended		6 Months Ended
	Apr. 01, 2017	Mar. 26, 2016	Apr. 01, 2017	Mar. 26, 2016
Income Statement [Abstract]
Net sales	$ 52,896	$ 50,557	$ 131,247	$ 126,429
Cost of sales	32,305	30,636	80,480	76,085
Gross margin	20,591	19,921	50,767	50,344
Operating expenses:
Research and development	2,776	2,511	5,647	4,915
Selling, general and administrative	3,718	3,423	7,664	7,271
Total operating expenses	6,494	5,934	13,311	12,186
Operating income	14,097	13,987	37,456	38,158
Other income/(expense), net	587	155	1,408	557
Income before provision for income taxes	14,684	14,142	38,864	38,715
Provision for income taxes	3,655	3,626	9,944	9,838
Net income	$ 11,029	$ 10,516	$ 28,920	$ 28,877
Earnings per share:
Basic (in dollars per share)	$ 2.11	$ 1.91	$ 5.50	$ 5.22
Diluted (in dollars per share)	$ 2.10	$ 1.90	$ 5.46	$ 5.19
Shares used in computing earnings per share:
Basic (in shares)	5,225,791	5,514,381	5,262,226	5,536,656
Diluted (in shares)	5,261,688	5,540,886	5,294,841	5,567,506
Cash dividends declared per share (in dollars per share)	$ 0.57	$ 0.52	$ 1.14	$ 1.04