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Income Taxes (Activity Related To Gross Unrecognized Tax Benefits) (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 01, 2022
Oct. 02, 2021
Oct. 03, 2020
Sep. 28, 2019
Income Tax Disclosure [Abstract]        
Unrecognized tax benefits $ 152 $ 152 $ 165 $ 169
Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions 16 25 21  
Unrecognized Tax Benefits, Increase Resulting from Prior Period Tax Positions 20 7 5  
Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions (13) (7) (9)  
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities (3) (1) (3)  
Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations $ (20) $ (37) $ (18)