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Compensation Related Costs, Share Based Payments (Details) - USD ($)
$ in Millions
12 Months Ended
Sep. 30, 2023
Oct. 01, 2022
Oct. 02, 2021
Share-Based Payment Arrangement [Abstract]      
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant 6,923,370    
Stock options exercised $ 11 $ 126 $ 41