Note 10 Loss Contingency (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 28, 2019	Sep. 30, 2023	Oct. 01, 2022
Loss Contingencies [Line Items]
Loss Contingency Accrual		$ 34	$ 38
Collectibility of Receivable and Excess and Obsolete Inventory [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value	$ 10
Performance Of Manufacturing Service Agreement [Member]
Loss Contingencies [Line Items]
Loss Contingency, Damages Sought, Value		200
Performance Of Manufacturing Service Agreement [Member] | Maximum
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss		$ 2