Employee Benefit Plans Employee Savings and Retirement Plan (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 27, 2020 |
Sep. 29, 2019 |
Sep. 30, 2018 |
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| Employee Savings and Retirement Plan [Abstract] | |||
| Percentage of eligible employee compensation that can be contributed to 401(k) plan subject to annual limits | 85.00% | ||
| Company's contribution expense to 401(k) plan | $ 69 | $ 64 | $ 78 |
| X | ||||||||||
- Definition Employee Savings and Retirement Plan [Abstract] No definition available.
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| X | ||||||||||
- Definition Amount of cost for defined contribution plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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