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OTHER FINANCIAL INFORMATION - Schedule of Goodwill by Business Segment (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Sep. 30, 2023
--- | --- | ---
Goodwill [Line Items] |  |
Goodwill | $ 17,936 | $ 14,480
Intelligent Devices |  |
Goodwill [Line Items] |  |
Goodwill | 5,506 | 5,485
Software and Control |  |
Goodwill [Line Items] |  |
Goodwill | 12,430 | 8,995
Final Control | Intelligent Devices |  |
Goodwill [Line Items] |  |
Goodwill | 2,668 | 2,660
Measurement & Analytical | Intelligent Devices |  |
Goodwill [Line Items] |  |
Goodwill | 1,548 | 1,545
Discrete Automation | Intelligent Devices |  |
Goodwill [Line Items] |  |
Goodwill | 899 | 892
Safety & Productivity | Intelligent Devices |  |
Goodwill [Line Items] |  |
Goodwill | 391 | 388
Control Systems & Software | Software and Control |  |
Goodwill [Line Items] |  |
Goodwill | 670 | 668
Test & Measurement | Software and Control |  |
Goodwill [Line Items] |  |
Goodwill | 3,433 | 0
AspenTech | Software and Control |  |
Goodwill [Line Items] |  |
Goodwill | $ 8,327 | $ 8,327

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