RESTRUCTURING COSTS - Schedule Of Restructuring Expense by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2025	Mar. 31, 2024
Restructuring [Line Items]
Expense	$ 21	$ 30	$ 32	$ 113
Corporate and other
Restructuring [Line Items]
Expense	2	11	3	37
Intelligent Devices | Operating Segments
Restructuring [Line Items]
Expense	9	2	18	18
Software and Control
Restructuring [Line Items]
Expense	10	17	11	58
Final Control | Intelligent Devices | Operating Segments
Restructuring [Line Items]
Expense	2	(7)	4	(4)
Measurement & Analytical | Intelligent Devices | Operating Segments
Restructuring [Line Items]
Expense	2	1	3	4
Discrete Automation | Intelligent Devices | Operating Segments
Restructuring [Line Items]
Expense	5	7	11	17
Safety & Productivity | Intelligent Devices | Operating Segments
Restructuring [Line Items]
Expense	0	1	0	1
Control Systems & Software | Software and Control | Operating Segments
Restructuring [Line Items]
Expense	6	3	8	4
Test & Measurement | Software and Control | Operating Segments
Restructuring [Line Items]
Expense	$ 4	$ 14	$ 3	$ 54