Revenue from Contracts with Customers - Disaggregation (Details) - USD ($) $ in Millions | 3 Months Ended |
Dec. 31, 2020 | Dec. 31, 2019 |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | $ 1,903 | $ 1,975 |
Other revenue | 29 | 32 |
Total revenues | 1,932 | 2,007 |
Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 284 | 314 |
Residential | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 165 | 184 |
Commercial & Industrial | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 60 | 68 |
Large delivery service | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 40 | 41 |
Off-system sales and capacity releases | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 15 | 17 |
Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 4 | 4 |
Total Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 1,619 | 1,661 |
Retail | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 1,055 | 1,094 |
Wholesale | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 59 | 66 |
Energy Marketing | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 380 | 363 |
Pipeline | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 45 | 43 |
Peaking | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 2 | 4 |
Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 2 | 2 |
Electricity Generation | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 4 | 9 |
Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 72 | 80 |
Eliminations | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | (77) | (79) |
Other revenue | (1) | (1) |
Total revenues | (78) | (80) |
Eliminations | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | (15) | (15) |
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 | (14) | (14) |
Eliminations | Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | (1) | (1) |
Eliminations | Total Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | (62) | (64) |
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 | (26) | (26) |
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 | (36) | (38) |
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 | 0 | 0 |
Eliminations | AmeriGas Propane | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues | 0 | 0 |
Eliminations | UGI International | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues | 0 | 0 |
Eliminations | Midstream & Marketing | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues | (62) | (64) |
Eliminations | UGI Utilities | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues | (15) | (15) |
Operating Segments | AmeriGas Propane | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 647 | 712 |
Other revenue | 19 | 18 |
Total revenues | 666 | 730 |
Operating Segments | AmeriGas Propane | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
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 Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 647 | 712 |
Operating Segments | AmeriGas Propane | Retail | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 572 | 631 |
Operating Segments | AmeriGas Propane | Wholesale | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 19 | 22 |
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 | 56 | 59 |
Operating Segments | UGI International | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 694 | 643 |
Other revenue | 6 | 8 |
Total revenues | 700 | 651 |
Operating Segments | UGI International | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
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 Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 694 | 643 |
Operating Segments | UGI International | Retail | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 483 | 463 |
Operating Segments | UGI International | Wholesale | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 40 | 44 |
Operating Segments | UGI International | Energy Marketing | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 155 | 124 |
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 | 16 | 12 |
Operating Segments | Midstream & Marketing | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 340 | 370 |
Other revenue | 1 | 3 |
Total revenues | 341 | 373 |
Operating Segments | Midstream & Marketing | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
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 Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 340 | 370 |
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 | 251 | 265 |
Operating Segments | Midstream & Marketing | Pipeline | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 45 | 43 |
Operating Segments | Midstream & Marketing | Peaking | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 38 | 42 |
Operating Segments | Midstream & Marketing | Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 2 | 2 |
Operating Segments | Midstream & Marketing | Electricity Generation | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 4 | 9 |
Operating Segments | Midstream & Marketing | Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 9 |
Operating Segments | UGI Utilities | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 299 | 329 |
Other revenue | 1 | 0 |
Total revenues | 300 | 329 |
Operating Segments | UGI Utilities | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 299 | 329 |
Operating Segments | UGI Utilities | Residential | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 165 | 184 |
Operating Segments | UGI Utilities | Commercial & Industrial | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 60 | 68 |
Operating Segments | UGI Utilities | Large delivery service | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 40 | 41 |
Operating Segments | UGI Utilities | Off-system sales and capacity releases | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 29 | 31 |
Operating Segments | UGI Utilities | Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 5 | 5 |
Operating Segments | UGI Utilities | Total Non-Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
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 |
Corporate & Other | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
Other revenue | 3 | 4 |
Total revenues | 3 | 4 |
Corporate & Other | Total Utility | | |
Disaggregation of Revenue [Line Items] | | |
Total revenues from contracts with customers | 0 | 0 |
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 Non-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] | | |
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 | Electricity Generation | | |
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 |