Leases - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 24, 2022	Sep. 25, 2021
Lessee, Lease, Description [Line Items]
Typical term of leases (not exceeding)	10 years
Fixed operating lease costs	$ 2,000	$ 1,900	$ 1,700
Variable lease costs	13,900	14,900	12,900
Fixed operating lease payments	1,900	1,800	1,400
Right-of-use assets obtained in exchange for operating and finance lease liabilities	$ 2,100	$ 2,800	$ 3,300
Weighted-average remaining lease term	10 years 7 months 6 days	10 years 1 month 6 days
Weighted-average discount rate	3.00%	2.30%
Leases not yet commenced, future payments	$ 544
Minimum
Lessee, Lease, Description [Line Items]
Leases not yet commenced, lease term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Leases not yet commenced, lease term	21 years