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Other Financial Information Other Financial Information (Components of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Sep. 28, 2018	Sep. 29, 2017
Other Financial Information [Abstract]
Accrued payroll and related liabilities	$ 864,670	$ 572,946
Project-related accruals	45,349	71,815
Non project-related accruals	349,384	116,051
Insurance liabilities	64,976	67,546
Sales and other similar taxes	83,151	32,163
Deferred rent	58,988	60,593
Dividends payable	22,111	18,573
Total	$ 1,488,629	$ 939,687

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Insurance Liabilities

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Non Project Related Accruals

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Other Financial Information [Abstract]

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Project Related Accruals

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Sales And Other Similar Taxes

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Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
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For a classified balance sheet, the cumulative difference as of the balance sheet date between the 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, by the lessor or lessee, respectively, within one year of the balance sheet date.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 2
-Subparagraph (a)
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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits.

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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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