Basis of Presentation and Significant Accounting Policies Update Recently Adopted Accounting Pronouncements (Details) - USD ($) $ in Millions |
Mar. 29, 2020 |
Sep. 30, 2019 |
|---|---|---|
| New Accounting Pronouncements [Abstract] | ||
| Operating Lease, Right-of-Use Asset | $ 475 | $ 449 |
| Operating Lease, Liability | 521 | 500 |
| Operating Lease, Liability, Current | 132 | 127 |
| Operating Lease, Liability, Noncurrent | $ 389 | 373 |
| Deferred Rent Credit | $ 51 |
| X | ||||||||||
- Definition New Accounting Pronouncements [Abstract] No definition available.
|
| X | ||||||||||
- Definition The cumulative difference between the rental payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense over the term of the leased property by the lessor or lessee, respectively. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|