Financial Instruments - Notional Amounts of Derivative Instruments (Details) - USD ($) $ in Millions	Dec. 27, 2025	Sep. 27, 2025
Derivatives designated as accounting hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	$ 46,619	$ 62,647
Derivatives designated as accounting hedges | Interest rate contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	12,875	12,875
Derivatives not designated as accounting hedges | Foreign exchange contracts
Derivatives, Fair Value [Line Items]
Derivatives, notional amount	$ 120,980	$ 109,079