Commitments and Contingencies (Details) |
9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
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Jun. 30, 2026
USD ($)
subsidiary
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Sep. 30, 2024
USD ($)
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Dec. 31, 2017
USD ($)
record_of_decision
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Sep. 30, 2025
USD ($)
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Jun. 30, 2025
USD ($)
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Mar. 24, 2023
person
|
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| Loss Contingencies | ||||||
| Environmental expenditures cap during calendar year | $ 5,000,000 | |||||
| West Reading, Pennsylvania Explosion | ||||||
| Loss Contingencies | ||||||
| Number of fatalities | person | 7 | |||||
| Number of injuries | person | 10 | |||||
| MGP sites in Pennsylvania | ||||||
| Loss Contingencies | ||||||
| Accrual for environmental loss contingencies | $ 66,000,000 | $ 63,000,000 | $ 53,000,000 | |||
| Utilities | ||||||
| Loss Contingencies | ||||||
| Number of subsidiaries acquired with similar histories | subsidiary | 2 | |||||
| AmeriGas OLP | Saranac Lake, New York | NYDEC ROD | ||||||
| Loss Contingencies | ||||||
| Number of remediation plans | record_of_decision | 3 | |||||
| Estimated remediation plan cost | $ 28,000,000 | |||||
| AmeriGas OLP | Saranac Lake, New York | NYDEC RP | ||||||
| Loss Contingencies | ||||||
| Environmental remediation expense, before recovery | $ 19,000,000 | |||||
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- Definition Environmental expenditures cap during calendar year. No definition available.
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- Definition Loss Contingency, Remediation Plans, Number Of Decisions No definition available.
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- Definition Number Of Fatalities No definition available.
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- Definition Number Of Injuries No definition available.
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- Definition Number of Subsidiaries Acquired No definition available.
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount, before recovery, of expense for known and estimated future costs arising from requirement to perform environmental remediation. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Reflects the estimated amount of loss from the specified contingency as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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