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