Derivative Instruments - Effect of foreign Currency Cash Flow Hedges on AOCI (Details) - USD ($) $ in Millions		12 Months Ended
		Sep. 30, 2023	Oct. 01, 2022	Oct. 02, 2021
Foreign Currency Fair Value Hedge Derivative [Line Items]
Unrealized Gain (Loss) on Foreign Currency Derivatives, Net, before Tax		$ (136)	$ 1,093	$ 61
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	[1]	$ 446	$ 116	$ 24

[1] Primarily recorded in revenue.