BUSINESS SEGMENTS - Schedule of Segment Reporting Information, by Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Segment Reporting Information [Line Items]
Net sales	$ 4,346	$ 4,175
Cost of sales	2,035	1,940
Selling, general and administrative expenses	1,242	1,224
Other deductions, net	204	228
Earnings (Loss)	775	775
Stock compensation	4
Interest expense, net	(90)	(8)
Operating Segments
Segment Reporting Information [Line Items]
Earnings (Loss)	940	881
Operating Segments | Safety & Productivity
Segment Reporting Information [Line Items]
Net sales	503	487
Cost of sales	285	276
Selling, general and administrative expenses	112	110
Other deductions, net	9	5
Earnings (Loss)	97	96
Operating Segments | Software & Systems
Segment Reporting Information [Line Items]
Net sales	1,453	1,382
Cost of sales	584	540
Selling, general and administrative expenses	461	452
Other deductions, net	162	195
Earnings (Loss)	246	195
Operating Segments | Software & Systems | Control Systems & Software
Segment Reporting Information [Line Items]
Net sales	1,044	1,023
Cost of sales	481	451
Selling, general and administrative expenses	277	277
Other deductions, net	54	87
Earnings (Loss)	232	208
Operating Segments | Software & Systems | Test & Measurement
Segment Reporting Information [Line Items]
Net sales	409	359
Cost of sales	103	89
Selling, general and administrative expenses	184	175
Other deductions, net	108	108
Earnings (Loss)	14	(13)
Operating Segments | Intelligent Devices
Segment Reporting Information [Line Items]
Net sales	2,390	2,306
Cost of sales	1,167	1,122
Selling, general and administrative expenses	583	558
Other deductions, net	43	36
Earnings (Loss)	597	590
Operating Segments | Intelligent Devices | Sensors
Segment Reporting Information [Line Items]
Net sales	996	972
Cost of sales	445	424
Selling, general and administrative expenses	270	260
Other deductions, net	15	3
Earnings (Loss)	266	285
Operating Segments | Intelligent Devices | Final Control
Segment Reporting Information [Line Items]
Net sales	1,394	1,334
Cost of sales	722	698
Selling, general and administrative expenses	313	298
Other deductions, net	28	33
Earnings (Loss)	331	305
Segment Reconciling
Segment Reporting Information [Line Items]
Stock compensation	(55)	(68)
Unallocated pension and postretirement costs	29	27
Corporate and other
Segment Reporting Information [Line Items]
Earnings (Loss)	(49)	(57)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Interest expense, net	$ (90)	$ (8)