Acquisitions And Divestitures Schedule of Purchase Price Allocated to Assets and Liabilities (Details) - USD ($) $ in Millions	Sep. 30, 2022	May 16, 2022	Sep. 30, 2021	Sep. 30, 2020
Business Acquisition [Line Items]
Goodwill ($34 expected to be tax-deductible)	$ 14,662		$ 7,723	$ 6,734
AspenTech [Member]
Business Acquisition [Line Items]
Cash acquired		$ 274
Accounts receivable		61
Other current assets		262
Property, plant and equipment		4
Goodwill, expected tax deductible amount		34
Goodwill ($34 expected to be tax-deductible)		7,225
Other intangible assets		4,390
Other assets		511
Total assets		12,727
Short-term borrowings		27
Accounts payable		8
Accrued expenses		113
Long-term debt		255
Deferred taxes and other liabilities		1,136
Total purchase consideration		$ 11,188