Commitments and contingencies	6 Months Ended
Mar. 31, 2026
Commitments and contingencies
Commitments and contingencies	Note 9 — Commitments and contingencies Ordinary-course claims; no material loss accrual recorded.

The entire disclosure for commitments and contingencies.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 405
-SubTopic 30
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/405-30/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 450
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/450/tableOfContent

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 954
-SubTopic 440
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478522/954-440-50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 440
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482648/440-10-50-4

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 440
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/440/tableOfContent

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