Financial Instruments - Notional Amounts Associated with Derivative Instruments (Details) - USD ($) $ in Millions	Sep. 28, 2024	Sep. 30, 2023
Derivatives designated as accounting hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	$ 64,069	$ 74,730
Derivatives designated as accounting hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	14,575	19,375
Derivatives not designated as accounting hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	$ 91,493	$ 104,777