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v3.22.2.2

Debt - Schedule of Long-term Debt (Footnotes) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021
Debt Instrument [Line Items] |  |
Long-term debt | $ 6,632,000,000 | $ 6,449,000,000
Senior Secured Notes | Mountaineer senior notes |  |
Debt Instrument [Line Items] |  |
Long-term debt | 180,000,000 | 140,000,000
Unamortized premium | $ 21,000,000 | 24,000,000
Senior Secured Notes | Mountaineer senior notes | Minimum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as a percentage) | 3.50% |
Senior Secured Notes | Mountaineer senior notes | Maximum |  |
Debt Instrument [Line Items] |  |
Stated interest rate (as a percentage) | 4.49% |
AmeriGas Propane |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 2,563,000,000 | 2,560,000,000
UGI International |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 682,000,000 | $ 770,000,000
UGI International | Term Loan | Variable-rate term loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 1.89% | 1.89%
Midstream & Marketing |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 710,000,000 | $ 716,000,000
Midstream & Marketing | Term Loan | Variable-rate term loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 5.13% | 5.23%
Quarterly Installments | $ 2,000,000 |
Utilities |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 1,656,000,000 | $ 1,451,000,000
Utilities | Term Loan | Variable-rate term loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 3.92% | 4.00%
Quarterly Installments | $ 2,000,000 |
UGI Corporation |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 1,015,000,000 | $ 945,000,000
Weighted Average Interest Rate - End of Year |  | 3.27%
UGI Corporation | Term Loan | 3-year Term loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 2.67% | 3.26%
UGI Corporation | Term Loan | 5-year Term Loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 4.15% | 3.56%
Quarterly Installments | $ 9,000,000 |
UGI Corporation | Term Loan | 7-Year Term Loan |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 3.53% | 1.88%
UGI Corporation | Line of Credit |  |
Debt Instrument [Line Items] |  |
Effective interest rate (as a percentage) | 5.61% | 3.27%
Weighted Average Interest Rate - End of Year | 5.62% |

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