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Revenue from Contract with Customers - Schedule of Disaggregation of Revenue By Reportable Segment (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
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Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2017
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | $ 7,210.7 |  |
Other revenues |  |  |  |  |  |  |  |  | 109.7 |  |
Total revenues | $ 1,150.4 | $ 1,363.7 | $ 2,606.1 | $ 2,200.2 | $ 1,273.1 | $ 1,440.9 | $ 2,812.0 | $ 2,125.2 | 7,320.4 | $ 7,651.2 | $ 6,120.7
Negative surcharge |  |  |  |  |  |  |  |  | 5.5 |  |
Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 552.7 |  |
Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 226.3 |  |
Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 138.0 |  |
Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 46.4 |  |
Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 14.9 |  |
Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 978.3 |  |
Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 4,007.9 |  |
Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 233.3 |  |
Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,520.7 |  |
Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 94.5 |  |
Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 17.6 |  |
Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1.9 |  |
Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 43.2 |  |
Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 313.3 |  |
Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 6,232.4 |  |
Eliminations |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (302.2) |  |
Other revenues |  |  |  |  |  |  |  |  | (3.2) |  |
Total revenues |  |  |  |  |  |  |  |  | (305.4) | (370.8) | (222.7)
Eliminations | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (64.8) |  |
Eliminations | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (3.1) |  |
Eliminations | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (67.9) |  |
Eliminations | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (134.2) |  |
Eliminations | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (96.8) |  |
Eliminations | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Eliminations | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (3.3) |  |
Eliminations | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | (234.3) |  |
Eliminations | AmeriGas Propane |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 0.0
Eliminations | UGI International |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 0.0 | 0.0 | 0.0
Eliminations | Midstream & Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 234.6 | 272.6 | 178.2
Eliminations | UGI Utilities |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  |  |  |  |  |  |  |  | 67.9 | 93.9 | 40.1
Operating Segments | AmeriGas Propane |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 2,618.0 |  |
Other revenues |  |  |  |  |  |  |  |  | 64.0 |  |
Total revenues |  |  |  |  |  |  |  |  | 2,682.0 | 2,823.0 | 2,453.5
Operating Segments | AmeriGas Propane | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 2,340.9 |  |
Operating Segments | AmeriGas Propane | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 63.9 |  |
Operating Segments | AmeriGas Propane | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | AmeriGas Propane | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 213.2 |  |
Operating Segments | AmeriGas Propane | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 2,618.0 |  |
Operating Segments | UGI International |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 2,339.6 |  |
Other revenues |  |  |  |  |  |  |  |  | 32.6 |  |
Total revenues |  |  |  |  |  |  |  |  | 2,372.2 | $ 2,683.8 | $ 1,877.5
Operating Segments | UGI International | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,667.0 |  |
Operating Segments | UGI International | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 169.4 |  |
Operating Segments | UGI International | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 448.3 |  |
Operating Segments | UGI International | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI International | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 54.9 |  |
Operating Segments | UGI International | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 2,339.6 |  |
Operating Segments | Midstream & Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,509.1 |  |
Other revenues |  |  |  |  |  |  |  |  | 6.6 |  |
Total revenues |  |  |  |  |  |  |  |  | 1,515.7 |  |
Operating Segments | Midstream & Marketing | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | Midstream & Marketing | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,206.6 |  |
Operating Segments | Midstream & Marketing | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 94.5 |  |
Operating Segments | Midstream & Marketing | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 114.4 |  |
Operating Segments | Midstream & Marketing | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1.9 |  |
Operating Segments | Midstream & Marketing | Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 43.2 |  |
Operating Segments | Midstream & Marketing | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 48.5 |  |
Operating Segments | Midstream & Marketing | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,509.1 |  |
Operating Segments | UGI Utilities |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,046.2 |  |
Other revenues |  |  |  |  |  |  |  |  | 2.4 |  |
Total revenues |  |  |  |  |  |  |  |  | 1,048.6 |  |
Operating Segments | UGI Utilities | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 552.7 |  |
Operating Segments | UGI Utilities | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 226.3 |  |
Operating Segments | UGI Utilities | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 138.0 |  |
Operating Segments | UGI Utilities | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 111.2 |  |
Operating Segments | UGI Utilities | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 18.0 |  |
Operating Segments | UGI Utilities | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 1,046.2 |  |
Operating Segments | UGI Utilities | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Electricity Generation |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Operating Segments | UGI Utilities | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Other revenues |  |  |  |  |  |  |  |  | 7.3 |  |
Total revenues |  |  |  |  |  |  |  |  | 7.3 |  |
Corporate & Other | Residential |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Commercial & Industrial |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Large delivery service |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Off-system sales and capacity releases |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Total Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Retail |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Wholesale |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Energy Marketing |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Pipeline |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Peaking |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
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Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
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Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Other |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | 0.0 |  |
Corporate & Other | Total Non-Utility |  |  |  |  |  |  |  |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |  |  |  |  |  |  |  |
Total revenues from contracts with customers |  |  |  |  |  |  |  |  | $ 0.0 |  |

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