Commitments and Contingencies	6 Months Ended
Mar. 31, 2025
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 9 — Commitments and Contingencies Environmental Matters UGI Utilities From the late 1800s through the mid-1900s, UGI Utilities and its former subsidiaries owned and operated a number of MGPs prior to the general availability of natural gas. Some constituents of coal tars and other residues of the manufactured gas process are today considered hazardous substances under the Superfund Law and may be present on the sites of former MGPs. Between 1882 and 1953, UGI Utilities owned the stock of subsidiary gas companies in Pennsylvania and elsewhere and also operated the businesses of some gas companies under agreement. By the early 1950s, UGI Utilities divested all of its utility operations other than certain gas and electric operations. Beginning in 2006 and 2008, UGI Utilities also owned and operated two acquired subsidiaries, with similar histories of owning, and in some cases operating, MGPs in Pennsylvania. UGI Utilities is subject to a COA with the PADEP to address the remediation of specified former MGP sites in Pennsylvania, which is scheduled to terminate at the end of 2035. In accordance with the COA, UGI Utilities is required to either obtain a certain number of points per calendar year based on defined eligible environmental investigatory and/or remedial activities at the MGPs, or make expenditures for such activities in an amount equal to an annual environmental minimum expenditure threshold. The annual minimum expenditure threshold of the COA is $5. At March 31, 2025, September 30, 2024 and March 31, 2024, our aggregate estimated accrued liabilities for environmental investigation and remediation costs related to the COA totaled $51, $54 and $56, respectively. We do not expect the costs for investigation and remediation of hazardous substances at Pennsylvania MGP sites to be material to UGI Utilities’ results of operations because UGI Utilities receives ratemaking recovery of actual environmental investigation and remediation costs associated with the sites covered by the COA. This ratemaking recognition reconciles the accumulated difference between historical costs and rate recoveries with an estimate of future costs associated with the sites. As such, UGI Utilities has recorded an associated regulatory asset for these costs because recovery of these costs from customers is probable (see Note 7). From time to time, UGI Utilities is notified of sites outside Pennsylvania on which private parties allege MGPs were formerly owned or operated by UGI Utilities or owned or operated by a former subsidiary. Such parties generally investigate the extent of environmental contamination or perform environmental remediation. Management believes that under applicable law, UGI Utilities should not be liable in those instances in which a former subsidiary owned or operated an MGP. There could be, however, significant future costs of an uncertain amount associated with environmental damage caused by MGPs outside Pennsylvania that UGI Utilities directly operated, or that were owned or operated by a former subsidiary of UGI Utilities if a court were to conclude that (1) the subsidiary’s separate corporate form should be disregarded, or (2) UGI Utilities should be considered to have been an operator because of its conduct with respect to its subsidiary’s MGP. Neither the undiscounted nor the accrued liability for environmental investigation and cleanup costs for UGI Utilities’ MGP sites outside Pennsylvania were material for all periods presented. AmeriGas Propane AmeriGas OLP Saranac Lake. In 2008, the NYDEC notified AmeriGas OLP that the NYDEC had placed property purportedly owned by AmeriGas OLP in Saranac Lake, New York on the New York State Registry of Inactive Hazardous Waste Disposal Sites. A site characterization study performed by the NYDEC disclosed contamination related to a former MGP. AmeriGas OLP responded to the NYDEC in 2009 to dispute the contention it was a PRP as it did not operate the MGP and appeared to only own a portion of the site. In 2017, the NYDEC communicated to AmeriGas OLP that the NYDEC had previously issued three RODs related to remediation of the site totaling approximately $28 and requested additional information regarding AmeriGas OLP’s purported ownership. AmeriGas OLP renewed its challenge to designation as a PRP and identified potential defenses. The NYDEC subsequently identified a third party PRP with respect to the site. The NYDEC commenced implementation of the remediation plan in the spring of 2018. In Fiscal 2024, the NYDEC informed AmeriGas OLP that the remediation plan had been completed at a total cost of approximately $19. The New York Office of the Attorney General, as counsel for the NYDEC, invited AmeriGas OLP to participate in settlement discussions. Based on our evaluation of the available information as of March 31, 2025, the Partnership has an undiscounted environmental remediation liability of $8 related to the site. Our share of the actual remediation costs could be significantly more or less than the accrued amount. Other Matters West Reading, Pennsylvania Explosion. On March 24, 2023, an explosion occurred in West Reading, Pennsylvania which resulted in seven fatalities, injuries to at least ten others, and extensive property damage to buildings owned by R.M. Palmer, a local chocolate manufacturer, and neighboring structures. The NTSB investigated and the PAPUC is investigating the West Reading incident. The NTSB investigative team included representatives from the Company, the local fire department and the Pipeline and Hazardous Materials Safety Administration. The Company cooperated with the investigation. In September 2023, OSHA closed their investigation of this matter, without any finding pertaining to UGI Utilities. On December 10, 2024, the NTSB staff presented its draft findings to the NTSB Board. On April 8, 2025, the NTSB released its final report concluding that a fracture in an R.M. Palmer steam pipe created elevated underground temperatures that caused thermal degradation of a UGI Utilities service tee, resulting in a natural gas leak, and recommended UGI Utilities inventory and address risks to plastic gas assets in high-temperature environments. The Company has received claims as a result of the explosion and is involved in lawsuits relative to the incident. With the issuance of the final NTSB report, discovery in the litigation will now begin. The Company maintains liability insurance for personal injury, property and casualty damages and believes that third-party claims associated with the explosion, in excess of the Company’s deductible, are recoverable through the Company’s insurance. The Company cannot predict the result of these pending or future claims and legal actions at this time. Regarding these pending claims and legal actions, the Company does not believe, at this early stage, that there is sufficient information available to reasonably estimate a range of loss, if any, or conclude that the final outcome of these matters will or will not have a material effect on our financial statements. In addition to the matters described above, there are other pending claims and legal actions arising in the normal course of our businesses. Although we cannot predict the final results of these pending claims and legal actions, including those described above, we believe, after consultation with counsel, that the final outcome of these matters will not have a material effect on our financial statements. UGI International. In the first quarter of Fiscal 2024, UGI France initiated VDPs in consultation with the French Works Councils, pursuant to which employees were incentivized to voluntarily terminate employment or could be subject to involuntary termination to achieve certain workforce reductions. As of March 31, 2024, likelihood of termination benefits under VDPs was probable and the amount of such benefits was reasonably estimable. As a result, in the second quarter of Fiscal 2024, UGI International recorded pre-tax severance and other related expenses of $34, which were reflected in "Operating and administrative expenses" on the Condensed Consolidated Statements of Income for the three and six months ended March 31, 2024.

From the late 1800s through the mid-1900s, UGI Utilities and its former subsidiaries owned and operated a number of MGPs prior to the general availability of natural gas. Some constituents of coal tars and other residues of the manufactured gas process are today considered hazardous substances under the Superfund Law and may be present on the sites of former MGPs. Between 1882 and 1953, UGI Utilities owned the stock of subsidiary gas companies in Pennsylvania and elsewhere and also operated the businesses of some gas companies under agreement. By the early 1950s, UGI Utilities divested all of its utility operations other than certain gas and electric operations. Beginning in 2006 and 2008, UGI Utilities also owned and operated two acquired subsidiaries, with similar histories of owning, and in some cases operating, MGPs in Pennsylvania.

UGI Utilities is subject to a COA with the PADEP to address the remediation of specified former MGP sites in Pennsylvania, which is scheduled to terminate at the end of 2035. In accordance with the COA, UGI Utilities is required to either obtain a certain number of points per calendar year based on defined eligible environmental investigatory and/or remedial activities at the MGPs, or make expenditures for such activities in an amount equal to an annual environmental minimum expenditure threshold. The annual minimum expenditure threshold of the COA is $5. At March 31, 2025, September 30, 2024 and March 31, 2024, our aggregate estimated accrued liabilities for environmental investigation and remediation costs related to the COA totaled $51, $54 and $56, respectively.

We do not expect the costs for investigation and remediation of hazardous substances at Pennsylvania MGP sites to be material to UGI Utilities’ results of operations because UGI Utilities receives ratemaking recovery of actual environmental investigation and remediation costs associated with the sites covered by the COA. This ratemaking recognition reconciles the accumulated difference between historical costs and rate recoveries with an estimate of future costs associated with the sites. As such, UGI Utilities has recorded an associated regulatory asset for these costs because recovery of these costs from customers is probable (see Note 7).

From time to time, UGI Utilities is notified of sites outside Pennsylvania on which private parties allege MGPs were formerly owned or operated by UGI Utilities or owned or operated by a former subsidiary. Such parties generally investigate the extent of environmental contamination or perform environmental remediation. Management believes that under applicable law, UGI Utilities should not be liable in those instances in which a former subsidiary owned or operated an MGP. There could be, however, significant future costs of an uncertain amount associated with environmental damage caused by MGPs outside Pennsylvania that UGI Utilities directly operated, or that were owned or operated by a former subsidiary of UGI Utilities if a court were to conclude that (1) the subsidiary’s separate corporate form should be disregarded, or (2) UGI Utilities should be considered to have been an operator because of its conduct with respect to its subsidiary’s MGP. Neither the undiscounted nor the accrued liability for environmental investigation and cleanup costs for UGI Utilities’ MGP sites outside Pennsylvania were material for all periods presented.

AmeriGas OLP Saranac Lake. In 2008, the NYDEC notified AmeriGas OLP that the NYDEC had placed property purportedly owned by AmeriGas OLP in Saranac Lake, New York on the New York State Registry of Inactive Hazardous Waste Disposal Sites. A site characterization study performed by the NYDEC disclosed contamination related to a former MGP. AmeriGas OLP responded to the NYDEC in 2009 to dispute the contention it was a PRP as it did not operate the MGP and appeared to only own a portion of the site. In 2017, the NYDEC communicated to AmeriGas OLP that the NYDEC had previously issued three RODs related to remediation of the site totaling approximately $28 and requested additional information regarding AmeriGas OLP’s purported ownership. AmeriGas OLP renewed its challenge to designation as a PRP and identified potential defenses. The NYDEC subsequently identified a third party PRP with respect to the site.

The NYDEC commenced implementation of the remediation plan in the spring of 2018. In Fiscal 2024, the NYDEC informed AmeriGas OLP that the remediation plan had been completed at a total cost of approximately $19. The New York Office of the Attorney General, as counsel for the NYDEC, invited AmeriGas OLP to participate in settlement discussions. Based on our evaluation of the available information as of March 31, 2025, the Partnership has an undiscounted environmental remediation liability of $8 related to the site. Our share of the actual remediation costs could be significantly more or less than the accrued amount.

West Reading, Pennsylvania Explosion. On March 24, 2023, an explosion occurred in West Reading, Pennsylvania which resulted in seven fatalities, injuries to at least ten others, and extensive property damage to buildings owned by R.M. Palmer, a local chocolate manufacturer, and neighboring structures. The NTSB investigated and the PAPUC is investigating the West Reading incident. The NTSB investigative team included representatives from the Company, the local fire department and the Pipeline and Hazardous Materials Safety Administration. The Company cooperated with the investigation. In September 2023, OSHA closed their investigation of this matter, without any finding pertaining to UGI Utilities.

On December 10, 2024, the NTSB staff presented its draft findings to the NTSB Board. On April 8, 2025, the NTSB released its final report concluding that a fracture in an R.M. Palmer steam pipe created elevated underground temperatures that caused thermal degradation of a UGI Utilities service tee, resulting in a natural gas leak, and recommended UGI Utilities inventory and address risks to plastic gas assets in high-temperature environments.

The Company has received claims as a result of the explosion and is involved in lawsuits relative to the incident. With the issuance of the final NTSB report, discovery in the litigation will now begin. The Company maintains liability insurance for personal injury, property and casualty damages and believes that third-party claims associated with the explosion, in excess of the Company’s deductible, are recoverable through the Company’s insurance. The Company cannot predict the result of these pending or future claims and legal actions at this time.

Regarding these pending claims and legal actions, the Company does not believe, at this early stage, that there is sufficient information available to reasonably estimate a range of loss, if any, or conclude that the final outcome of these matters will or will not have a material effect on our financial statements.

In addition to the matters described above, there are other pending claims and legal actions arising in the normal course of our businesses. Although we cannot predict the final results of these pending claims and legal actions, including those described above, we believe, after consultation with counsel, that the final outcome of these matters will not have a material effect on our financial statements.

UGI International. In the first quarter of Fiscal 2024, UGI France initiated VDPs in consultation with the French Works Councils, pursuant to which employees were incentivized to voluntarily terminate employment or could be subject to involuntary termination to achieve certain workforce reductions. As of March 31, 2024, likelihood of termination benefits under VDPs was probable and the amount of such benefits was reasonably estimable. As a result, in the second quarter of Fiscal 2024, UGI International recorded pre-tax severance and other related expenses of $34, which were reflected in "Operating and administrative expenses" on the Condensed Consolidated Statements of Income for the three and six months ended March 31, 2024.