Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Sep. 30, 2024 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Schedule of Equity Method Investments [Line Items] | |||
| Goodwill | $ 2,871 | $ 2,845 | $ 3,048 |
| UGI International | |||
| Schedule of Equity Method Investments [Line Items] | |||
| Percentage of fair value exceeding carrying value | 30.00% | ||
| AmeriGas Propane | |||
| Schedule of Equity Method Investments [Line Items] | |||
| Impairment of goodwill | $ 195 | ||
| Goodwill | 1,100 | ||
| UGI International | |||
| Schedule of Equity Method Investments [Line Items] | |||
| Goodwill | $ 922 |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of impairment loss from asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Percentage of fair value of reporting unit in excess of carrying amount. No definition available.
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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/2003/role/disclosureRef
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