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Business Segment Information - Sales and Operating Results (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023
Sales and operating results of reportable segments |  |  |  |
Sales | $ 2,050.6 | $ 2,238.7 | $ 6,228.7 | $ 6,495.1
Purchase accounting depreciation and amortization | (35.6) | (27.2) | (108.3) | (79.8)
Corporate and other | (28.6) | (32.3) | (96.8) | (88.8)
Non-operating pension and postretirement benefit credit (cost) | 4.9 | 5.5 | 14.7 | (87.5)
Change in fair value of investments | (5.0) | 85.7 | 0.9 | 289.3
Restructuring charges | (69.8) | 0.0 | (69.8) | 0.0
Interest expense, net | (37.4) | (32.9) | (101.9) | (100.2)
Income before income taxes | 255.0 | 471.8 | 825.0 | 1,291.1
Operating Segments |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Segment operating earnings | 426.5 | 473.0 | 1,186.2 | 1,358.1
Intelligent Devices |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Sales | 957.3 | 968.1 | 2,858.1 | 2,927.5
Intelligent Devices | Operating Segments |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Segment operating earnings | 193.5 | 163.1 | 504.7 | 579.4
Software & Control |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Sales | 512.1 | 750.6 | 1,685.7 | 2,065.0
Software & Control | Operating Segments |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Segment operating earnings | 120.6 | 261.5 | 417.9 | 678.1
Lifecycle Services |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Sales | 581.2 | 520.0 | 1,684.9 | 1,502.6
Lifecycle Services | Operating Segments |  |  |  |
Sales and operating results of reportable segments |  |  |  |
Segment operating earnings | $ 112.4 | $ 48.4 | $ 263.6 | $ 100.6

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