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Other Financial Information (Components Of Accrued Liabilities) (Details) - USD ($) $ in Thousands	Oct. 02, 2015	Sep. 26, 2014
Other Financial Information [Abstract]
Accrued payroll and related liabilities	$ 623,297	$ 783,549
Project-related accruals	130,401	140,938
Non project-related accruals	102,324	76,588
Insurance liabilities	59,081	52,826
Sales and other similar taxes	53,476	52,373
Deferred rent	93,040	96,129
Other	29,366	77,153
Total	$ 1,090,985	$ 1,279,556

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Insurance liabilities

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Other Financial Information [Abstract]

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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).

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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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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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Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. 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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