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. 02, 2022	Jul. 03, 2021	Jul. 02, 2022	Jul. 03, 2021
Costs and Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	$ (275)	$ 16	$ (420)	$ 77
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	257	(42)	327	(138)
Net gain (loss)	(18)	(26)	(93)	(61)
Interest Expense
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	29	(19)	17	(74)
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	(28)	20	(18)	75
Net gain (loss)	1	1	(1)	1
Income Taxes
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on foreign currency denominated assets and liabilities	96	5	141	(29)
Net gain (loss) on foreign exchange risk management contracts not designated as hedges	(89)	0	(132)	30
Net gain (loss)	$ 7	$ 5	$ 9	$ 1