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Goodwill And Other Intangibles (Tables)
12 Months Ended
Sep. 30, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Schedule Of Change In Carry Amount Of Goodwill By Business Segment
The change in the carrying value of goodwill by business segment follows:
Final ControlMeasurement & AnalyticalDiscrete AutomationSafety & ProductivityControl Systems & SoftwareAspenTechTotal
Balance, September 30, 2021$2,762 1,227 877 415 642 1,044 6,967 
Acquisitions— — — — 40 7,289 7,329 
Foreign currency translation and other(146)(57)(70)(51)(19)(7)(350)
Balance, September 30, 20222,616 1,170 807 364 663 8,326 13,946 
Acquisitions 374 55    429 
Foreign currency translation and other44 1 30 24 5 1 105 
Balance, September 30, 2023$2,660 1,545 892 388 668 8,327 14,480 
Schedule Of Gross Carrying Amount And Accumulated Amortization Of Identifiable Intangible Assets By Major Class
The gross carrying amount and accumulated amortization of identifiable intangible assets by major class follow:
Customer RelationshipsIntellectual PropertyCapitalized SoftwareTotal
2022 2023 2022 2023 2022 2023 2022 2023 
Gross carrying amount$4,393 4,623 3,961 4,118 1,317 1,370 9,671 10,111 
Less: Accumulated amortization957 1,270 1,027 1,411 1,115 1,167 3,099 3,848 
     Net carrying amount$3,436 3,353 2,934 2,707 202 203 6,572 6,263