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Segment Information - Schedule of Total Revenues, Operating Profit and Total Asset for Reporting Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2017 | Apr. 01, 2016 | Mar. 31, 2017 | Apr. 01, 2016
Segment Reporting Information [Line Items] |  |  |  |
Revenues from External Customers | $ 2,302,567 | $ 2,781,763 | $ 4,854,171 | $ 5,629,697
Total Operating Profit | 68,173 | 86,781 | 156,801 | 146,231
Restructuring and Other Charges | (72,225) | (35,368) | (103,966) | (103,751)
Total Other (Expense) income | (6,449) | 3,675 | (9,197) | 2,012
Total Other (Expense) income - Restructuring | (1,233) |  | (1,233) |
Earnings Before Taxes | 60,491 | 90,456 | 146,371 | 148,243
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Operating Profit | 148,736 | 140,946 | 287,401 | 288,355
Corporate Non-Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Other Corporate Expenses | (8,338) | (18,797) | (26,634) | (38,373)
Petroleum & Chemicals |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues from External Customers | 557,827 | 866,615 | 1,199,640 | 1,808,928
Petroleum & Chemicals | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Operating Profit | 35,619 | 30,945 | 59,271 | 62,548
Aerospace & Technology |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues from External Customers | 577,040 | 669,464 | 1,154,476 | 1,339,655
Aerospace & Technology | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Operating Profit | 45,057 | 55,121 | 96,144 | 103,120
Buildings & Infrastructure |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues from External Customers | 585,242 | 579,128 | 1,165,859 | 1,142,458
Buildings & Infrastructure | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Operating Profit | 43,987 | 42,463 | 82,784 | 82,915
Industrial |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Revenues from External Customers | 582,458 | 666,556 | 1,334,196 | 1,338,656
Industrial | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Total Operating Profit | $ 24,073 | $ 12,417 | $ 49,202 | $ 39,772

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