OTHER FINANCIAL INFORMATION - Schedule of Goodwill by Business Segment (Details) - USD ($) $ in Millions	Jun. 30, 2025	Sep. 30, 2024
Goodwill [Line Items]
Goodwill	$ 18,158	$ 18,067
Intelligent Devices
Goodwill [Line Items]
Goodwill	5,656	5,601
Software and Control
Goodwill [Line Items]
Goodwill	12,502	12,466
Final Control \| Intelligent Devices
Goodwill [Line Items]
Goodwill	2,713	2,702
Measurement & Analytical \| Intelligent Devices
Goodwill [Line Items]
Goodwill	1,593	1,576
Discrete Automation \| Intelligent Devices
Goodwill [Line Items]
Goodwill	935	919
Safety & Productivity \| Intelligent Devices
Goodwill [Line Items]
Goodwill	415	404
Control Systems & Software \| Software and Control
Goodwill [Line Items]
Goodwill	9,038	9,003
Test & Measurement \| Software and Control
Goodwill [Line Items]
Goodwill	$ 3,464	$ 3,463

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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