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Finite & Indefinite Lived Intangibles (Details) - USD ($)
$ in Millions
3 Months Ended
Dec. 31, 2022
May 16, 2022
Developed technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets, weighted average useful life 10 years  
Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets, weighted average useful life 15 years  
Backlog    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangible assets, weighted average useful life 3 years  
AspenTech    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangibles   $ 4,390
AspenTech | Trade Names    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Indefinite-Lived Intangible Assets   430
AspenTech | Developed technology    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangibles   1,350
AspenTech | Customer relationships    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangibles   2,300
AspenTech | Backlog    
Acquired Finite-Lived Intangible Assets [Line Items]    
Intangibles   $ 310