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Short-term Borrowings (Details) |  | 1 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May. 29, 2015 EUR (€) | Oct. 31, 2015 EUR (€) | Jun. 30, 2014 USD ($) | Oct. 31, 2016 USD ($) | Apr. 30, 2016 USD ($) | Sep. 30, 2015 USD ($) credit_agreement | Sep. 30, 2014 USD ($) | Sep. 30, 2013 USD ($) | Sep. 30, 2015 EUR (€) | Sep. 30, 2015 USD ($) | May. 29, 2015 USD ($) | Apr. 30, 2015 EUR (€) | Mar. 27, 2015 USD ($) | Sep. 30, 2014 EUR (€) | Sep. 30, 2014 USD ($) | May. 25, 2011 USD ($)
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  | $ 3,699,800,000 |  |  |  |  | $ 3,510,800,000 |
AmeriGas Propane |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  | $ 2,283,500,000 |  |  |  |  | $ 2,291,700,000 |
AmeriGas Propane | AmeriGas Credit Agreement | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facility fee |  |  | 0.30% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facility fee |  |  | 0.45% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Federal Funds Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Base Rate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Base Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Eurodollar | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | AmeriGas Credit Agreement | Eurodollar | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  | 2.50% |  |  |  |  |  |  |  |  |  |  |  |  |
AmeriGas Propane | Line of Credit | AmeriGas Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 525,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average interest rate (percentage) |  |  |  |  |  |  |  |  | 2.20% | 2.20% |  |  |  | 2.16% | 2.16% |
Issued and outstanding letters of credit |  |  |  |  |  |  |  |  |  | $ 64,700,000 |  |  |  |  | $ 64,700,000 |
AmeriGas Propane | Letter of Credit | AmeriGas Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 125,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
France SAS | 2015 Senior Facilities Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument term (in years) | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
France SAS | 2015 Senior Facilities Agreement | EURIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 1.60% |  |  |  |  |  |  |  |  |  |
France SAS | 2015 Senior Facilities Agreement | EURIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 2.70% |  |  |  |  |  |  |  |  |  |
France SAS | Revolving Credit Facility | 2015 Senior Facilities Agreement | EURIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) | 2.35% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
France SAS | Revolving Credit Facility | 2015 Senior Facilities Agreement | EURIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) | 1.45% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
France SAS | Revolving Credit Facility | 2015 Senior Facilities Agreement | EURIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) | 2.55% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
France SAS | Term Loan | 2015 Senior Facilities Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | € 600,000,000 |  |  |  |  |  |  |  |  | 670,700,000 | $ 659,600,000 |  |  |  | 0 |
France SAS | Term Loan | 2015 Senior Facilities Agreement | EURIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |
France SAS | Line of Credit | Revolving Credit Facility | 2015 Senior Facilities Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € | 60,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Finagaz | Revolving Credit Facility | 2015 Senior Facilities Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € | € 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Antargaz | Revolving Credit Facility | 2015 Senior Facilities Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  |  |  |  |  |  |  |  |  | € 30,000,000 |  |  |  |
Flaga | Flaga Multi-Currency Working Capital Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount outstanding at period end |  |  |  |  |  |  |  |  | € 0 |  |  |  |  |  | 0 |
Flaga | Euro Working Capital Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amount outstanding at period end |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |
Flaga | Line of Credit | Flaga Multi-Currency Working Capital and Working Capital Facilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issued and outstanding letters of credit |  |  |  |  |  |  |  |  | 19,900,000 | 22,200,000 |  |  |  | € 32,300,000 | 40,800,000 |
Flaga | Line of Credit | Flaga Multi-Currency Working Capital Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  |  |  |  |  |  | 46,000,000 |  |  |  |  |  |  |
Number of working capital facilities | credit_agreement |  |  |  |  |  | 1 |  |  |  |  |  |  |  |  |  |
Flaga | Line of Credit | Euro Working Capital Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  |  |  |  |  |  | 12,000,000 |  |  |  |  |  |  |
Flaga | Line of Credit | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | € 100,800,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Line of Credit | Revolving Credit Facility | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | € 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Facility fee |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Line of Credit | Revolving Credit Facility | Flaga Credit Facility Agreement | EURIBOR | Minimum | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  | 1.45% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Line of Credit | Revolving Credit Facility | Flaga Credit Facility Agreement | EURIBOR | Maximum | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  | 3.65% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Overdraft Facility | Flaga Multi-Currency Working Capital Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  |  |  |  |  |  |  |  | 6,000,000 |  |  |  |  |  |  |
Amount outstanding at period end |  |  |  |  |  |  |  |  | € 500,000 | 600,000 |  |  |  | € 6,300,000 | 8,000,000 |
Flaga | Overdraft Facility | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | € 5,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Guarantee Facility | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | 25,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Term Loan | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | 45,800,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Flaga | Term Loan | Flaga Credit Facility Agreement | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity | € |  | € 45,800,000.0 |  |  |  |  |  |  |  |  |  |  |  |  |  |
UGI Utilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  |  |  |  | 622,000,000 |  |  |  |  | 642,000,000 |
UGI Utilities | 2015 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of Consolidated Debt to Consolidated Total Capital |  |  |  |  |  | 0.65 |  |  |  |  |  |  |  |  |  |
UGI Utilities | Line of Credit | 2015 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average interest rate (percentage) |  |  |  |  |  |  |  |  |  |  |  |  | 1.07% |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement | Prime Rate | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement | Prime Rate | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement | London Interbank Offered Rate (LIBOR) | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 0.00% |  |  |  |  |  |  |  |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement | London Interbank Offered Rate (LIBOR) | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |  |  |
UGI Utilities | Line of Credit | Revolving Credit Facility | 2011 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000
UGI Utilities | Letter of Credit | Revolving Credit Facility | 2015 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 100,000,000 |  |  |
Issued and outstanding letters of credit |  |  |  |  |  |  |  |  |  | 2,000,000 |  |  |  |  |  |
UGI Utilities | Letter of Credit | Revolving Credit Facility | 2011 UGI Utilities Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issued and outstanding letters of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 |
Energy Services | Line of Credit | Energy Services Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 240,000,000 |  |  |  |  |  |
Weighted average interest rate (percentage) |  |  |  |  |  |  |  |  | 2.75% | 2.75% |  |  |  |  |  |
Maximum Consolidated Total Indebtedness Ceiling (greater than) |  |  |  |  |  | $ 250,000,000 |  |  |  |  |  |  |  |  |  |
Minimum Consolidated Net Worth |  |  |  |  |  | $ 200,000,000 |  |  |  |  |  |  |  |  |  |
Energy Services | Line of Credit | Energy Services Credit Agreement | Maximum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ratio of Consolidated Indebtedness to EBITDA |  |  |  |  |  | 2.25 |  |  |  |  |  |  |  |  |  |
Energy Services | Line of Credit | Energy Services Credit Agreement | Federal Funds Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 0.50% |  |  |  |  |  |  |  |  |  |
Energy Services | Line of Credit | Energy Services Credit Agreement | London Interbank Offered Rate (LIBOR) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |  |  |
Energy Services | Line of Credit | Energy Services Credit Agreement | Alternate Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |
Energy Services | Line of Credit | Energy Services Credit Agreement | One-Month LIBOR |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (percentage) |  |  |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |
Energy Services | Letter of Credit | Energy Services Credit Agreement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |
Energy Services | Receivables Facility | Energy Services Receivables Facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sale of trade receivables to consolidated special purpose subsidiary |  |  |  |  |  |  |  | $ 975,300,000 |  | 1,037,800,000 |  |  |  |  | 1,260,600,000 |
Proceeds from accounts receivable securitization |  |  |  |  |  | $ 306,500,000 | $ 354,000,000 | 291,000,000 |  |  |  |  |  |  |  |
Outstanding balance of ESFC trade receivables |  |  |  |  |  |  |  |  |  | 44,100,000 |  |  |  |  | 46,400,000 |
Trade receivables sold to commercial paper conduit |  |  |  |  |  |  |  |  |  | $ 19,500,000 |  |  |  |  | $ 7,500,000 |
Losses on sales of receivables to commercial paper conduit included in interest expenses |  |  |  |  |  | $ 600,000 | $ 600,000 | $ 700,000 |  |  |  |  |  |  |  |
Energy Services | Receivables Facility | Energy Services Receivables Facility | Subsequent Event |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  | $ 75,000,000 | $ 150,000,000 |  |  |  |  |  |  |  |  |  |  |

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