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BUSINESS SEGMENTS - Depreciation & Amortization (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | $ 383 | $ 422
Operating Segments | Intelligent Devices |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 107 | 116
Operating Segments | Software and Control |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 265 | 295
Operating Segments | Final Control | Intelligent Devices |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 40 | 40
Operating Segments | Measurement & Analytical | Intelligent Devices |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 31 | 40
Operating Segments | Discrete Automation | Intelligent Devices |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 21 | 22
Operating Segments | Safety & Productivity | Intelligent Devices |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 15 | 14
Operating Segments | Control Systems & Software | Software and Control |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 23 | 21
Operating Segments | Test & Measurement | Software and Control |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 118 | 151
Operating Segments | AspenTech | Software and Control |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | 124 | 123
Corporate and other |  |
Segment Reporting Information [Line Items] |  |
Depreciation and amortization | $ 11 | $ 11

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