BUSINESS SEGMENTS - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended			12 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2022	Jun. 30, 2024	Sep. 30, 2023	Jun. 30, 2023	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net sales	$ 4,380	$ 3,946		$ 12,873		$ 11,075
Earnings (Loss)	455	822		1,341		1,883
Gain on subordinated interest				79		0
Interest expenses	(56)	(10)		(157)		(111)
Expense	57	12		170		41
Acquisition/divestiture costs	7	38		92		48
Amortization of acquisition-related inventory step-up				231		0
Loss on divestiture of business	0	0		39		0
Unrealized gain (loss) on derivatives		12				47
Gain (loss) on sale of business		10,576				13,359
National Instruments
Segment Reporting Information [Line Items]
Net sales							$ 170
Expense	5			41
Acquisition/divestiture costs	13			159	$ 110	198
Restructuring Charges | National Instruments
Segment Reporting Information [Line Items]
Stock compensation	9			53
Software and Control
Segment Reporting Information [Line Items]
Expense	27	1		85		7
Russia
Segment Reporting Information [Line Items]
Gain (loss) on sale of business			$ (47)
Operating Segments | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	2,997	2,979		8,880		8,442
Earnings (Loss)	693	708		2,019		1,885
Expense	25	10		43		22
Operating Segments | Software and Control
Segment Reporting Information [Line Items]
Net sales	1,398	983
Earnings (Loss)	129	171
Operating Segments | Final Control | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	1,046	1,035		3,037		2,889
Earnings (Loss)	253	245		706		618
Expense	5	(2)		1		(1)
Operating Segments | Measurement & Analytical | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	982	913		2,942		2,550
Earnings (Loss)	252	257		761		661
Expense	3	1		7		2
Operating Segments | Discrete Automation | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	618	668		1,863		1,969
Earnings (Loss)	109	124		322		378
Expense	16	12		33		20
Operating Segments | Safety & Productivity | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	351	363		1,038		1,034
Earnings (Loss)	79	82		230		228
Expense	1	(1)		2		1
Operating Segments | Control Systems & Software | Software and Control
Segment Reporting Information [Line Items]
Net sales	700	663		2,062		1,892
Earnings (Loss)	168	144		468		378
Expense	3	1		7		7
Operating Segments | Test & Measurement | Software and Control
Segment Reporting Information [Line Items]
Net sales	355	0		1,104		0
Earnings (Loss)	(88)	0		(245)		0
Expense	24	0		78		0
Operating Segments | AspenTech | Software and Control
Segment Reporting Information [Line Items]
Net sales	343	320		878		793
Earnings (Loss)	49	27		6		(60)
Expense	0	0		0		0
Operating Segments | Software and Control | Software and Control
Segment Reporting Information [Line Items]
Net sales				4,044		2,685
Earnings (Loss)				229		318
Segment Reconciling
Segment Reporting Information [Line Items]
Stock compensation	(56)	(56)		(203)		(198)
Unallocated pension and postretirement costs	38	42		107		133
Loss on Copeland note receivable	(279)	0		(279)		0
Gain on subordinated interest	0	0		79		0
Segment Reconciling | Related Party
Segment Reporting Information [Line Items]
Interest income from related party	24	10		86		10
Corporate and other
Segment Reporting Information [Line Items]
Earnings (Loss)	(38)	(43)		(540)		(154)
Expense	5	1		42		12
Eliminations/Interest
Segment Reporting Information [Line Items]
Net sales	(15)	(16)		(51)		(52)
Interest expenses	$ (56)	$ (10)		$ (157)		$ (111)