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Benefit Plans - Additional Information (Details) - USD ($) $ in Billions | 3 Months Ended
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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

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