Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
-Paragraph 2
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Segment Information and Geographic Data - Net Sales by Product (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2017	Jul. 01, 2017	Apr. 01, 2017	Dec. 31, 2016	Sep. 24, 2016	Jun. 25, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 30, 2017	Sep. 24, 2016	Sep. 26, 2015
Segment Reporting Information [Line Items]
Net sales	$ 52,579	$ 45,408	$ 52,896	$ 78,351	$ 46,852	$ 42,358	$ 50,557	$ 75,872	$ 229,234	$ 215,639	$ 233,715
Services revenue, one-time adjustment	$ 640
iPhone
Segment Reporting Information [Line Items]
Net sales									141,319	136,700	155,041
iPad
Segment Reporting Information [Line Items]
Net sales									19,222	20,628	23,227
Mac
Segment Reporting Information [Line Items]
Net sales									25,850	22,831	25,471
Services
Segment Reporting Information [Line Items]
Net sales									29,980	24,348	19,909
Other Products
Segment Reporting Information [Line Items]
Net sales									$ 12,863	$ 11,132	$ 10,067