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Debt - AmeriGas Propane (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2017 | Sep. 30, 2017
AmeriGas Partners | Senior Notes | 5.50% due May 2025 |  |
Debt Instrument |  |
Aggregate principal amount |  | $ 700,000,000
Stated interest rate |  | 5.50%
AmeriGas Partners | Senior Notes | 5.75% due May 2027 |  |
Debt Instrument |  |
Aggregate principal amount |  | $ 525,000,000
Stated interest rate |  | 5.75%
AmeriGas Partners | Senior Notes | 7.00% Senior Notes |  |
Debt Instrument |  |
Stated interest rate |  | 7.00%
Aggregate principal balance repaid |  | $ 980,800,000
Revolving Credit Facility | Line of Credit | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Total capacity (up to) | $ 600,000,000 |
Letter of Credit | Line of Credit | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Total capacity (up to) | $ 150,000,000 |
Federal Funds Effective Swap Rate | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Basis spread on variable rate (percentage) | 0.50% |
Minimum | Base Rate | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Basis spread on variable rate (percentage) | 0.50% |
Minimum | Eurodollar | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Basis spread on variable rate (percentage) | 1.50% |
Maximum | Base Rate | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Basis spread on variable rate (percentage) | 1.75% |
Maximum | Eurodollar | AmeriGas Credit Agreement |  |
Debt Instrument |  |
Basis spread on variable rate (percentage) | 2.75% |

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