Composition of Certain Financial Statement Items Revenues (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Mar. 29, 2026	Mar. 30, 2025	Mar. 29, 2026	Mar. 30, 2025
Revenue
Revenues		$ 10,599	$ 10,979	$ 22,851	$ 22,649
Revenues recognized from previously satisfied performance obligations		132	285	313	526
Operating Segments
Revenue
Revenues		$ 10,458	10,788	$ 22,663	22,407
Minimum
Revenue
Patent license agreement expiration period		2027		2027
Maximum
Revenue
Patent license agreement expiration period		2031		2031
QCT | Operating Segments
Revenue
Revenues		$ 9,076	9,469	$ 19,689	19,553
Handsets | QCT
Revenue
Revenues	[1]	6,024	6,929	13,848	14,503
Automotive | QCT
Revenue
Revenues	[2]	1,326	959	2,427	1,920
IoT | QCT
Revenue
Revenues	[3]	$ 1,726	$ 1,581	$ 3,414	$ 3,130

[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: consumer (including personal computers (PCs), extended reality (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).