Commitment and Contingencies - Legacy Asbestos Liabilities and Insurance Recoveries Receivable (Details) - USD ($) $ in Millions	Sep. 30, 2025	Sep. 30, 2024
Business Interruption Loss [Line Items]
Net exposure	$ (151)	$ (18)
Other Receivables
Business Interruption Loss [Line Items]
Insurance settlements receivable	22	9
Other Noncurrent Assets
Business Interruption Loss [Line Items]
Insurance settlements receivable	268	93
Other current liabilities
Business Interruption Loss [Line Items]
Liability for asbestos and environmental claims, gross	(34)	(15)
Other Noncurrent Liabilities
Business Interruption Loss [Line Items]
Liability for asbestos and environmental claims, gross	$ (407)	$ (105)

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Amount due in settlement of a claim for reimbursement from an insurance company when the Company has suffered a loss covered under an insurance policy.

+ References

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Carrying amount as of the balance sheet date of reserves for the costs of settling insured claims and costs incurred in the claims settlement process attributable to asbestos and environmental claims, before estimated recoveries from reinsurers.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (cc)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480081/944-40-50-3

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480081/944-40-50-3

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