Composition of Certain Financial Statement Items Revenues (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 28, 2025	Sep. 29, 2024	Sep. 24, 2023
Revenues
Revenues		$ 44,284	$ 38,962	$ 35,820
Contract with Customer, Performance Obligation Satisfied in Previous Period		$ 783	558	598
Minimum
Revenues
Patent license agreement expiration period		2027
Maximum
Revenues
Patent license agreement expiration period		2031
QCT
Revenues
Revenues		$ 38,367	33,196	30,382
QCT | Handsets
Revenues
Revenues	[1]	27,793	24,863	22,570
QCT | Automotive
Revenues
Revenues	[2]	3,957	2,910	1,872
QCT | IoT (internet of things)
Revenues
Revenues	[3]	$ 6,617	$ 5,423	$ 5,940

[1] Includes revenues from products sold for use in mobile handsets.

[2] Includes revenues from products sold for use in automobiles, including connectivity, digital cockpit and ADAS/AD.

[3] Primarily includes products sold for use in the following industries and applications: consumer (including PCs, XR and other personal computing devices), edge networking (including mobile broadband and wireless access points) and industrial (including handhelds, retail, tracking and logistics and utilities).