Acquisitions And Divestitures Schedule of Purchase Price Allocated to Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	May 16, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Goodwill ($34 expected to be tax-deductible)	$ 14,748		$ 7,723
Goodwill expected tax deductible amount		$ 34
AspenTech
Business Acquisition [Line Items]
Cash and equivalents		274
Accounts receivable		61
Other current assets		262
Property, plant and equipment, net		4
Goodwill ($34 expected to be tax-deductible)		7,223
Other intangible assets		4,390
Other assets		511
Total assets		12,725
Short-term borrowings		27
Accounts payable		8
Accrued expenses		113
Long-term debt		253
Deferred tax and other liabilities		1,136
Total purchase consideration		$ 11,188