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Benefit Plans - Additional Information (Details) - USD ($)
$ in Billions
3 Months Ended
Dec. 25, 2021
Dec. 26, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Total unrecognized compensation cost related to RSUs and stock options $ 20.6  
Total unrecognized compensation cost related to RSUs and stock options, weighted-average recognition period 3 years  
Restricted stock units    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Fair value of RSUs as of the respective vesting dates $ 8.5 $ 8.5