BUSINESS SEGMENTS - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		9 Months Ended	12 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2024	Mar. 31, 2023	Sep. 30, 2023	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 4,376		$ 3,756		$ 8,493	$ 7,129
Earnings (Loss)	652		639		791	1,061
Loss on Copeland equity method investment	(59)		0		(95)	0
Gain on subordinated interest					79	0
Interest expense	(57)		(53)		(101)	(101)
Expense	30		19		113	29
Acquisition/divestiture costs	5		10		85	10
Loss on divestiture of business	39		0		39	0
Amortization of acquisition-related inventory step-up	231				231	0
Gain (loss) on sale of business			3			2,783
Unrealized gain (loss) on derivatives						35
National Instruments
Segment Reporting Information [Line Items]
Net sales								$ 170
Expense	10				36
Acquisition/divestiture costs	16				146	198	$ 110
Restructuring Charges | National Instruments
Segment Reporting Information [Line Items]
Stock compensation	14				44
Software and Control
Segment Reporting Information [Line Items]
Expense	17		5		58	6
Russia
Segment Reporting Information [Line Items]
Gain (loss) on sale of business		$ (47)		$ (47)
Operating Segments | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	3,061		2,924		5,883	5,463
Earnings (Loss)	732		660		1,326	1,177
Expense	2		11		18	12
Operating Segments | Software and Control
Segment Reporting Information [Line Items]
Net sales	1,332		853
Earnings (Loss)	64		73
Operating Segments | Final Control | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	1,051		992		1,991	1,854
Earnings (Loss)	259		215		453	373
Expense	(7)		2		(4)	1
Operating Segments | Measurement & Analytical | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	1,013		888		1,960	1,637
Earnings (Loss)	274		229		509	404
Expense	1		0		4	1
Operating Segments | Discrete Automation | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	632		683		1,245	1,301
Earnings (Loss)	116		133		213	254
Expense	7		7		17	8
Operating Segments | Safety & Productivity | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	365		361		687	671
Earnings (Loss)	83		83		151	146
Expense	1		2		1	2
Operating Segments | Control Systems & Software | Software and Control
Segment Reporting Information [Line Items]
Net sales	687		623		1,362	1,229
Earnings (Loss)	151		127		300	234
Expense	3		5		4	6
Operating Segments | Test & Measurement | Software and Control
Segment Reporting Information [Line Items]
Net sales	367		0		749	0
Earnings (Loss)	(79)		0		(157)	0
Expense	14		0		54	0
Operating Segments | AspenTech | Software and Control
Segment Reporting Information [Line Items]
Net sales	278		230		535	473
Earnings (Loss)	(8)		(54)		(43)	(87)
Expense	0		0		0	0
Operating Segments | Software and Control | Software and Control
Segment Reporting Information [Line Items]
Net sales					2,646	1,702
Earnings (Loss)					100	147
Segment Reconciling
Segment Reporting Information [Line Items]
Stock compensation	(73)		(40)		(147)	(142)
Unallocated pension and postretirement costs	38		46		69	91
Loss on Copeland equity method investment	(59)		0		(95)	0
Gain on subordinated interest	79				79
Segment Reconciling | Related Party
Segment Reporting Information [Line Items]
Interest income	31		0		62	0
Corporate and other
Segment Reporting Information [Line Items]
Earnings (Loss)	(103)		(47)		(502)	(111)
Expense	11		3		37	11
Eliminations/Interest
Segment Reporting Information [Line Items]
Net sales	(17)		(21)		(36)	(36)
Interest expense	$ (57)		$ (53)		$ (101)	$ (101)