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GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Assets (Detail) - USD ($) $ in Millions | Sep. 30, 2025 | Sep. 30, 2024
--- | --- | ---
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Intangible Assets, Gross (Excluding Goodwill) | $ 4,851 | $ 4,643
Intangible Assets, Accumulated Amortization | 1,397 | 1,197
Total | 3,454 | 3,446
Technology |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Gross Carrying Amount | 2,647 | 2,510
Accumulated Amortization | 1,137 | 1,003
Net | 1,510 | 1,507
Order backlog |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Gross Carrying Amount | 59 | 61
Accumulated Amortization | 28 | 13
Net | 31 | 48
Customer relationships |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Gross Carrying Amount | 971 | 895
Accumulated Amortization | 225 | 175
Net | 746 | 720
Other Intangible Assets |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Gross Carrying Amount | 12 | 12
Accumulated Amortization | 7 | 6
Net | 5 | 6
Trademarks and trade names |  |
Intangible Asset, Acquired, Finite-Lived [Line Items] |  |
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross | 1,162 | 1,165
Indefinite-Lived Intangible Assets, Accumulated Amortization | 0 | 0
Intangible Assets (Excluding Goodwill), Net | $ 1,162 | $ 1,165

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