Composition of Certain Financial Statement Items Revenues (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 29, 2024	Sep. 24, 2023	Sep. 25, 2022
Revenues
Revenues		$ 38,962	$ 35,820	$ 44,200
Contract with Customer, Performance Obligation Satisfied in Previous Period		558	598	788
Contract with Customer, Liability, Revenue Recognized		$ 312	355
Minimum
Revenues
Patent license agreement expiration period		2025
Maximum
Revenues
Patent license agreement expiration period		2031
QCT
Revenues
Revenues		$ 33,196	30,382	37,677
QCT | Handsets
Revenues
Revenues	[1]	24,863	22,570	28,815
QCT | Automotive
Revenues
Revenues	[2]	2,910	1,872	1,509
QCT | IoT (internet of things)
Revenues
Revenues	[3]	5,423	5,940	7,353
QTL
Revenues
Revenues		$ 5,572	$ 5,306	$ 6,358
Customer/licensee one | Customer Concentration Risk | Sales
Concentration Risk
Percentage of total		22.00%	27.00%	21.00%
Customer/licensee two | Customer Concentration Risk | Sales
Concentration Risk
Percentage of total		19.00%	21.00%	21.00%
Customer/licensee three | Customer Concentration Risk | Sales
Concentration Risk
Percentage of total		12.00%

[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, tablets, voice and music and XR), edge networking (including mobile broadband and wireless access points) and industrial (including handhelds, retail, tracking and logistics and utilities).