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v3.20.2

Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jul. 31, 2020 | Jul. 31, 2019 | Jul. 31, 2020 | Jul. 31, 2019
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 1,394.1 | $ 1,647.9 | $ 4,503.0 | $ 4,850.6
Operating Segments |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 1,424.2 | 1,679.3 | 4,594.1 | 4,948.9
Operating Segments | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 756.9 | 807.9 | 2,363.4 | 2,444.5
Operating Segments | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 243.2 | 226.9 | 710.8 | 687.3
Operating Segments | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 188.6 | 215.4 | 596.6 | 633.6
Operating Segments | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 116.4 | 263.3 | 539.9 | 765.8
Operating Segments | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 119.2 | 165.7 | 383.5 | 417.7
Operating Segments | Janitorial |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 986.6 | 985.0 | 2,980.5 | 2,953.4
Operating Segments | Janitorial | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 596.9 | 576.9 | 1,786.9 | 1,738.2
Operating Segments | Janitorial | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 197.1 | 184.2 | 573.1 | 554.4
Operating Segments | Janitorial | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 165.7 | 191.4 | 529.4 | 566.8
Operating Segments | Janitorial | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 26.9 | 32.4 | 91.2 | 94.0
Operating Segments | Janitorial | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Parking |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 123.3 | 220.1 | 519.4 | 658.8
Operating Segments | Parking | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 67.7 | 129.5 | 290.7 | 383.3
Operating Segments | Parking | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 8.5 | 6.3 | 24.0 | 19.6
Operating Segments | Parking | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.2 | 0.7 | 1.5 | 2.3
Operating Segments | Parking | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 46.9 | 83.6 | 203.1 | 253.7
Operating Segments | Parking | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Facility Services |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 158.8 | 179.6 | 489.7 | 554.7
Operating Segments | Facility Services | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 92.2 | 101.4 | 285.5 | 322.5
Operating Segments | Facility Services | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 37.6 | 36.5 | 113.7 | 113.2
Operating Segments | Facility Services | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 22.7 | 23.3 | 65.7 | 64.6
Operating Segments | Facility Services | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 6.3 | 18.5 | 24.8 | 54.5
Operating Segments | Facility Services | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Building & Energy Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 119.2 | 165.7 | 383.5 | 417.7
Operating Segments | Building & Energy Solutions | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Building & Energy Solutions | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Building & Energy Solutions | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Building & Energy Solutions | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Building & Energy Solutions | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 119.2 | 165.7 | 383.5 | 417.7
Operating Segments | Airline Services |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 36.3 | 128.9 | 221.0 | 364.2
Operating Segments | Airline Services | Business & Industry |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.1 | 0.1 | 0.3 | 0.5
Operating Segments | Airline Services | Technology & Manufacturing |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.1
Operating Segments | Airline Services | Education |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Operating Segments | Airline Services | Aviation |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 36.2 | 128.8 | 220.7 | 363.7
Operating Segments | Airline Services | Technical Solutions |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Intersegment Eliminations |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ (30.1) | $ (31.3) | $ (91.1) | $ (98.3)

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