REVENUE RECOGNITION - Narrative (Details) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2024 USD ($)	Jun. 30, 2024 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Increase in contract liabilities		$ 160
Revenue recognized, included in beginning contract liability	$ 83	605
Backlog	8,700	8,700
AspenTech
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Backlog	1,300	1,300
National Instruments
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Backlog	$ 450	$ 450
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Percentage of backlog recognized as revenue, next 12 months	75.00%	75.00%
Expected timing of satisfaction, backlog	12 months	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction, backlog	1 year	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Expected timing of satisfaction, backlog	1 year	1 year