Retirement Plans (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 24, 2022	Jun. 25, 2021	Jun. 24, 2022	Jun. 25, 2021
Non-U.S. Plans
Net Periodic Postretirement Benefit Cost (Credit)
Service cost	$ 11	$ 10	$ 31	$ 34
Interest cost	8	7	25	21
Expected return on plan assets	(15)	(13)	(44)	(40)
Amortization of net actuarial loss	6	8	19	23
Amortization of prior service credit	(1)	(3)	(4)	(6)
Net periodic pension benefit cost (credit)	9	9	27	32
Defined benefit plan, contributions by employer			29
U.S. Plans
Net Periodic Postretirement Benefit Cost (Credit)
Service cost	2	3	6	9
Interest cost	7	7	20	23
Expected return on plan assets	(11)	(13)	(35)	(39)
Amortization of net actuarial loss		$ 3	2	$ 7
Net periodic pension benefit cost (credit)	$ (2)		$ (7)