Net Gains or Losses Recognized on Economic Exposures Associated With Foreign Currency Exchange Contracts (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 01, 2023	Jul. 02, 2022	Jul. 01, 2023	Jul. 02, 2022
Costs and Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	$ (61)	$ (275)	$ 99	$ (420)
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	0	257	(260)	327
Net gain (loss)	(61)	(18)	(161)	(93)
Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	(19)	29	(39)	17
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	17	(28)	36	(18)
Net gain (loss)	(2)	1	(3)	(1)
Income Taxes
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	(15)	96	(124)	141
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	19	(89)	106	(132)
Net gain (loss)	$ 4	$ 7	$ (18)	$ 9