v3.26.1
Employee Stock Plans (Stock Option and RSU Transactions) (Details) - Restricted Stock Units (RSUs) [Member] - USD ($)
shares in Millions, $ in Millions
6 Months Ended
Mar. 29, 2026
Sep. 28, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted, RSUs 4.4  
RSUs vested, RSUs (2.7)  
Forfeited/expired, RSUs (0.5)  
Total unrecognized stock-based compensation expense, net of estimated forfeitures, RSUs $ 364.8  
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 10.2 9.0