OTHER DEDUCTIONS, NET (Details) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($) business	Sep. 30, 2023 USD ($) business
Other Deductions, Net [Line Items]
Amortization of intangibles (intellectual property and customer relationships)		$ 884	$ 1,077	$ 482
Restructuring costs		136	228	72
Acquisition/divestiture fees and related costs		214	96	69
Foreign currency transaction (gains) losses		92	105	50
Investment-related gains & gains from sales of capital assets		0	0	(69)
Russia business exit			0	47
Other		(81)	(72)	(145)
Total		1,245	1,434	506
Amortization of intangible assets		1,174	1,366	764
Mark-to-market gain (loss)				24
Gain (loss) on disposition of business			(48)
National Instruments
Other Deductions, Net [Line Items]
Mark-to-market gain (loss)				56
RUSSIAN FEDERATION
Other Deductions, Net [Line Items]
Russia business exit		0
National Instruments
Other Deductions, Net [Line Items]
Mark-to-market gain (loss)				56
National Instruments
Other Deductions, Net [Line Items]
Amortization of intangibles (intellectual property and customer relationships)		425	560
Acquisition/divestiture fees and related costs	$ 110	$ 255	$ 205	84
Amortization of intangible assets				$ 424
National Instruments | National Instruments
Other Deductions, Net [Line Items]
Acquisition/divestiture fees and related costs	$ 88
Other Segment Transactions
Other Deductions, Net [Line Items]
Number of businesses acquired | business			2	2