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Stockholders' Equity and Stock-Based Compensation - Stock Option Activity (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 12 Months Ended
Sep. 30, 2023
Sep. 24, 2022
Sep. 25, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted 1.0    
Stock-based compensation, period of vest term granted to employees, years 3 years    
excise tax on share repurchase percentage 1.00%    
Number of Shares (in millions)      
Options outstanding at September 24, 2022 4.4    
Granted 0.5 0.7 0.6
Canceled/ forfeited (0.2)    
Exercised (0.5)    
Options outstanding at September 30, 2023 4.2 4.4  
Options exercisable at September 30, 2023 3.0    
Options vested and expected to vest at September 30, 2023 (1) 4.2    
Weighted- Average Exercise Price      
Options outstanding at September 24, 2022 $ 48.46    
Granted 74.66 $ 71.07 $ 68.62
Canceled/ forfeited 67.33    
Exercised 42.59    
Options outstanding at September 29, 2018 51.63 $ 48.46  
Options exercisable at September 30, 2023 44.49    
Options vested and expected to vest at September 30, 2023 (1) $ 51.56    
Weighted- Average Remaining Contractual Life (in Years)      
Options outstanding at September 24, 2022 5 years 7 months 6 days 6 years 1 month 6 days  
Options exercisable at September 30, 2023 4 years 7 months 6 days    
Options vested and expected to vest at September 30, 2023 (1) 5 years 7 months 6 days    
Options outstanding at September 30, 2023 5 years 7 months 6 days 6 years 1 month 6 days  
Aggregate Intrinsic Value (in millions)      
Options outstanding at September 24, 2022 $ 71.0    
Exercised 18.4 $ 11.1 $ 30.4
Options outstanding at September 30, 2023 77.6 $ 71.0  
Options exercisable at September 30, 2023 73.8    
Options vested and expected to vest at September 30, 2023 (1) $ 77.6    
Performance Shares      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted 0.1 0.1 0.1
Market Based Stock Units      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Granted 0.1 0.1 0.1
Stock-based compensation, period of vest term granted to employees, years 3 years    
Stock Options | Minimum      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Stock-based compensation, period of vest term granted to employees, years 4 years