Composition of Certain Financial Statement Items Revenues (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Jun. 28, 2026	Jun. 29, 2025	Jun. 28, 2026	Jun. 29, 2025
Revenue
Revenues		$ 9,947	$ 10,365	$ 32,798	$ 33,013
Revenues recognized from previously satisfied performance obligations		165	189	417	691
Operating Segments
Revenue
Revenues		$ 9,782	10,311	$ 32,445	32,718
Minimum
Revenue
Patent license agreement expiration period		2027		2027
Maximum
Revenue
Patent license agreement expiration period		2031		2031
QCT | Operating Segments
Revenue
Revenues		$ 8,504	8,993	$ 28,193	28,546
Handsets | QCT
Revenue
Revenues	[1]	5,086	6,328	18,934	20,831
Automotive | QCT
Revenue
Revenues	[2]	1,588	984	4,015	2,904
IoT | QCT
Revenue
Revenues	[3]	$ 1,830	$ 1,681	$ 5,244	$ 4,811

[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 advanced driver assistance systems (ADAS) and automated driving (AD).

[3] Primarily includes products sold for use in the following industries and applications: personal AI and compute (including personal computers (PCs), extended reality (XR) and other personal computing devices) and industrial, networking and robotics (including mobile broadband, wireless access points, handhelds, retail, tracking and logistics, and other commercial and home applications).