Contract with Customer, Asset and Liability (Details) - USD ($) $ in Millions	Apr. 03, 2021	Oct. 03, 2020
Contract with Customer, Asset, before Allowance for Credit Loss	$ 134	$ 70
Accounts Receivable, before Allowance for Credit Loss, Current	11,087	11,340
Accounts Receivable, before Allowance for Credit Loss, Noncurrent	1,643	1,789
Contract with Customer, Asset, Allowance for Credit Loss	(271)	(460)
Contract with Customer, Liability, Current	3,995	3,688
Contract with Customer, Liability, Noncurrent	$ 582	$ 513