Summary of Right-of-Use Assets and Lease Liabilities on the Balance Sheet (Details) - USD ($) $ in Millions		Oct. 01, 2022		Oct. 02, 2021
Operating Lease, Right-of-Use Asset	[1]	$ 3,966		$ 3,895
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	[1]	Other current assets, Other assets		Other current assets, Other assets
Finance Lease, Right-of-Use Asset,	[1]	$ 303		$ 336
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	[1]	Other current assets, Other assets		Other current assets, Other assets
Operating and Financing Lease Total Right Of Use Asset	[1]	$ 4,269		$ 4,231
Operating Lease, Liability, Current	[2]	$ 614		$ 637
Short-term Operating Lease, Liability	[2]	Accounts payable and other accrued liabilities		Accounts payable and other accrued liabilities
Finance Lease, Liability, Current	[2]	$ 37		$ 41
Short-term Finance Lease, Liability	[2]	Accounts payable and other accrued liabilities		Accounts payable and other accrued liabilities
Operating and Finance Lease Liability Current	[2]	$ 651		$ 678
Operating Lease, Liability, Noncurrent	[3]	$ 3,020		$ 2,983
Long-term Operating Lease, Liability	[3]	Other long-term liabilities		Other long-term liabilities
Finance Lease, Liability, Noncurrent		$ 219	[3]	$ 246
Long-term Finance Lease, Liability	[3]	Other long-term liabilities		Other long-term liabilities
Operating and Finance Lease Liability Noncurrent	[3]	$ 3,239		$ 3,229
Operating and Finance Lease Liability		$ 3,890		$ 3,907

[1] Included in “Other assets” in the Consolidated Balance Sheet

[2] Included in “Accounts payable and other accrued liabilities” in the Consolidated Balance Sheet

[3] Included in “Other long-term liabilities” in the Consolidated Balance Sheet