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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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The amount of expense recognized in the current period that reflects the allocation of capitalized costs associated with acquisition of business. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of expense for acquisition-related cost incurred to effect business combination. Includes, but is not limited to, finder's fee; advisory, legal, accounting, valuation, and other professional and consulting fees; and general administrative cost, including cost of maintaining internal acquisition department.

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Amount of unrealized gain (loss) on investment in debt and equity securities.

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Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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BUSINESS SEGMENTS INFORMATION - Narrative (Details) - USD ($) $ in Millions		3 Months Ended								9 Months Ended	12 Months Ended
	Oct. 11, 2023	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Total stock compensation expense											$ 265	$ 260	$ 271
Acquisition/divestiture fees and related costs											214	96	69
Amortization of acquisition-related inventory step-up											0	231	0
Divestiture losses												48
Russia business exit												0	47
Mark-to-market gain													24
Net sales		$ 4,855	$ 4,553	$ 4,432	$ 4,175	$ 4,619	$ 4,380	$ 4,376	$ 4,117		18,016	17,492	15,165
Property, plant and equipment		2,871				2,807				$ 2,363	2,871	2,807	2,363
National Instruments
Segment Reporting Information [Line Items]
Mark-to-market gain													56
U.S. Plans
Segment Reporting Information [Line Items]
Net sales											7,481	7,091	6,327
Property, plant and equipment		$ 1,498				$ 1,474				1,261	1,498	1,474	1,261
China
Segment Reporting Information [Line Items]
Net sales											1,829	1,901	1,804
AspenTech
Segment Reporting Information [Line Items]
Total stock compensation expense											35
National Instruments
Segment Reporting Information [Line Items]
Total stock compensation expense											12	96
Acquisition/divestiture fees and related costs										110	255	205	84
Net sales	$ 1,700
National Instruments \| National Instruments
Segment Reporting Information [Line Items]
Acquisition/divestiture fees and related costs										$ 88
Restructuring Charges \| AspenTech
Segment Reporting Information [Line Items]
Total stock compensation expense											22
Restructuring Charges \| National Instruments
Segment Reporting Information [Line Items]
Total stock compensation expense											3	58
Operating Profit \| National Instruments
Segment Reporting Information [Line Items]
Acquisition/divestiture fees and related costs											$ 42	$ 109	$ 15