ACQUISITIONS AND DIVESTITURES (Details) - USD ($) $ in Millions |
6 Months Ended | ||||
|---|---|---|---|---|---|
Mar. 12, 2025 |
Nov. 15, 2024 |
Mar. 31, 2026 |
Mar. 31, 2025 |
Sep. 30, 2025 |
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| Business Combination [Line Items] | |||||
| Settlement of AspenTech share awards | $ 0 | $ 76 | |||
| Purchase price of businesses, net of cash acquired | 0 | $ 36 | |||
| Goodwill | $ 18,153 | $ 18,193 | |||
| AspenTech | |||||
| Business Combination [Line Items] | |||||
| Payments to acquire businesses, gross | $ 7,200 | ||||
| Business combination, accrued deal fees | 76 | ||||
| Business combination, accrued deal fees, net of tax | 65 | ||||
| Settlement of AspenTech share awards | 76 | ||||
| Business combination, deal and transaction fees | 127 | ||||
| Business combination, deal and transaction fees, net of tax | $ 113 | ||||
| Open Grid Systems Limited | |||||
| Business Combination [Line Items] | |||||
| Purchase price of businesses, net of cash acquired | $ 46 | ||||
| Goodwill | 32 | ||||
| Goodwill expected tax deductible amount | 0 | ||||
| Intangible assets | $ 20 | ||||
| Weighted-average useful life | 5 years | ||||
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- Definition Business Combination, Accrued Deal Fees, Net Of Tax No definition available.
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- Definition Business Combination, Transaction Related Fees No definition available.
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- Definition Business Combination, Transaction Related Fees, Net of Tax No definition available.
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- Definition Payment For Settlement Of Awards No definition available.
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of transaction cost incurred to effect business combination. Excludes separately recognized transaction and indirect cost. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of identifiable finite-lived intangible asset acquired in business combination and recognized at acquisition date. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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