Revenue - Net Sales Disaggregated by Significant Products and Services (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 24, 2022	Sep. 25, 2021	Sep. 26, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 394,328	$ 365,817	$ 274,515
Revenue recognized that was included in deferred revenue at the beginning of the period	7,500	6,700	5,000
iPhone
Disaggregation of Revenue [Line Items]
Net sales	205,489	191,973	137,781
Mac
Disaggregation of Revenue [Line Items]
Net sales	40,177	35,190	28,622
iPad
Disaggregation of Revenue [Line Items]
Net sales	29,292	31,862	23,724
Wearables, Home and Accessories
Disaggregation of Revenue [Line Items]
Net sales	41,241	38,367	30,620
Services
Disaggregation of Revenue [Line Items]
Net sales	$ 78,129	$ 68,425	$ 53,768