Retirement Plans - Pre-Tax in AOCI for Defined Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 24, 2021
Defined Benefit Plan Disclosure
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Settlement Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]		Other Nonoperating Income (Expense)
Non-U.S. Plans
Defined Benefit Plan Disclosure
Current year net actuarial gain (loss) recorded in accumulated other comprehensive income (loss)	$ 350	$ 16
Amortization of net actuarial loss	21	34
Current year prior service cost recorded in accumulated other comprehensive income (loss)	(5)	(1)
Amortization of prior service cost (credit)	(5)	(10)
Total	361	39
U.S. Plans
Defined Benefit Plan Disclosure
Current year net actuarial gain (loss) recorded in accumulated other comprehensive income (loss)	(1)	103
Amortization of net actuarial loss	3	37
Amortization of prior service cost (credit)		1
Total	$ 2	141
Pension plan liabilities transferred to insurance company		190
Pension plan assets transferred to fund purchase of group annuity contract		180
Settlement charge from transfer to insurance company		$ (28)