Income Taxes - Summary of Valuation Allowance (Details) - USD ($) $ in Billions	12 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 03, 2020
Valuation Allowance [Line Items]
Roll Forward, Deferred Tax Assets, Valuation Allowance	$ 2.8	$ 2.4	$ 1.9
Charges to Tax Expense	0.4	0.4	0.6
Other Changes	(0.3)	0.0	(0.1)
Roll Forward, Deferred Tax Assets, Valuation Allowance	$ 2.9	$ 2.8	$ 2.4