Subsequent Events	12 Months Ended
Sep. 30, 2023
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTSOn October 11, 2023, the Company completed the acquisition of National Instruments Corporation (“NI”) for $60 per share in cash at an equity value of $8.2 billion. The effective price per share is $59.61 considering shares previously acquired by Emerson. NI, which provides software-connected automated test and measurement systems that enable enterprises to bring products to market faster and at a lower cost, had revenues of approximately $1.7 billion and pretax earnings of approximately $170 for the 12 months ended September 30, 2023. NI will be referred to as Test & Measurement and reported as a new segment in the Software and Control business group in 2024. The initial accounting for this transaction is not yet complete.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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