Leases (Details) - USD ($) $ in Millions	Jun. 29, 2024	Sep. 30, 2023
Operating Leases [Abstract]
Operating lease right-of-use assets	$ 619	$ 625
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Operating lease right-of-use assets	Operating lease right-of-use assets
Current operating lease liabilities	$ 125	$ 116
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other current liabilities	Other current liabilities
Noncurrent operating lease liabilities	$ 510	$ 525
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Noncurrent operating lease liabilities	Noncurrent operating lease liabilities
Finance Leases [Abstract]
Finance lease right-of-use assets	$ 32	$ 32
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property, plant and equipment	Property, plant and equipment
Current finance lease liability	$ 7	$ 9
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of long-term debt	Current portion of long-term debt
Noncurrent finance lease liabilities	$ 21	$ 19
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	Long-term debt	Long-term debt