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v3.25.3

Commitments and Contingencies (Details) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2025 USD ($) subsidiary | Sep. 30, 2024 USD ($) | Dec. 31, 2017 USD ($) record_of_decision | Mar. 24, 2023 person
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 | $ 63,000,000 | $ 54,000,000 |  |
UGI Utilities, Inc. |  |  |  |
Loss Contingencies |  |  |  |
Number of subsidiaries acquired with similar histories | subsidiary | 2 |  |  |
AmeriGas OLP | Saranac Lake, New York | NYDEC ROD |  |  |  |
Loss Contingencies |  |  |  |
Loss contingency, number of remediation plans | record_of_decision |  |  | 3 |
Estimated remediation plan cost |  |  | $ 28,000,000 |
AmeriGas OLP | Saranac Lake, New York | New York State Department of Environment Conservation Remediation Plan |  |  |  |
Loss Contingencies |  |  |  |
Remediation expense |  | $ 19,000,000 |  |

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