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Segment Information - Financial Information by Reportable Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2018 | Apr. 30, 2017 | Apr. 30, 2018 | Apr. 30, 2017
Revenues |  |  |  |
Revenues | $ 1,580.8 | $ 1,310.5 | $ 3,169.2 | $ 2,637.2
Operating profit (loss) |  |  |  |
Operating profit (loss) | 45.3 | 51.0 | 64.8 | 74.8
Adjustment for income from unconsolidated affiliates, net, included in Aviation and Government Services | 1.0 | 0.9 | 1.6 | 2.3
Interest expense | (13.8) | (3.0) | (28.1) | (6.3)
Income from continuing operations before income taxes | 32.5 | 48.9 | 38.2 | 70.9
Corporate |  |  |  |
Operating profit (loss) |  |  |  |
Operating profit (loss) | (37.1) | (36.4) | (84.5) | (71.0)
Segment Reconciling Items |  |  |  |
Operating profit (loss) |  |  |  |
Adjustment for tax deductions for energy efficient government buildings, included in Technical Solutions | (2.0) | (0.8) | (2.3) | (1.4)
Adjustment for income from unconsolidated affiliates, net, included in Aviation and Government Services | (1.0) | (1.1) | (1.6) | (2.4)
Business & Industry | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 723.2 | 637.5 | 1,445.3 | 1,293.0
Operating profit (loss) |  |  |  |
Operating profit (loss) | 43.5 | 36.0 | 72.0 | 63.2
Aviation | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 245.4 | 232.1 | 501.6 | 464.0
Operating profit (loss) |  |  |  |
Operating profit (loss) | 5.1 | 6.8 | 10.9 | 11.4
Technology & Manufacturing | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 227.5 | 161.4 | 459.5 | 332.9
Operating profit (loss) |  |  |  |
Operating profit (loss) | 16.0 | 12.1 | 32.9 | 24.8
Education | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 206.3 | 65.2 | 412.6 | 132.2
Operating profit (loss) |  |  |  |
Operating profit (loss) | 10.6 | 3.6 | 19.8 | 7.2
Technical Solutions | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 108.5 | 110.8 | 212.5 | 218.5
Operating profit (loss) |  |  |  |
Operating profit (loss) | 7.5 | 10.2 | 13.0 | 18.1
Healthcare | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 69.9 | 60.6 | 137.6 | 122.3
Operating profit (loss) |  |  |  |
Operating profit (loss) | 2.7 | 2.4 | 5.4 | 4.9
Government Services | Operating Segments |  |  |  |
Revenues |  |  |  |
Revenues | 0.0 | 42.9 | 0.0 | 74.3
Operating profit (loss) |  |  |  |
Operating profit (loss) | $ 0.0 | $ 18.2 | $ (0.8) | $ 20.0

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