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Other Financial Information Other Financial Information (Components of Accrued Liabilities) (Details) - USD ($) $ in Thousands | Oct. 02, 2020 | Sep. 27, 2019
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Other Financial Information [Abstract] |  |
Accrued payroll and related liabilities | $ 746,637 | $ 677,313
Project-related accruals | 60,531 | 58,835
Non project-related accruals | 237,204 | 258,312
Insurance liabilities | 75,267 | 83,968
Sales and other similar taxes | 104,720 | 34,390
Deferred rent | 0 | 68,914
Dividends payable | 25,524 | 23,439
Deferred gain on ECR disposition | 0 | 179,208
Current liabilities held for sale | 0 | 2,573
Total | $ 1,249,883 | $ 1,386,952

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