Revenue from Contracts with Customers - Schedule of Disaggregated Revenues By Reportable Segment (Details) - USD ($) $ in Millions | | 12 Months Ended |
Nov. 01, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021 |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | $ 8,761 | $ 9,981 | $ 7,348 |
Other revenues | | 167 | 125 | 99 |
Total revenues | | 8,928 | 10,106 | 7,447 |
Weather Normalization Adjustment Rider | Pennsylvania Public Utility Commission | Regulated natural gas utilities | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Public utilities, rate period | 5 years | | | |
Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,742 | 1,510 | 1,006 |
Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,020 | 875 | 568 |
Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 413 | 365 | 218 |
Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 177 | 171 | 148 |
Off-system sales and capacity releases | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 89 | 76 | 51 |
Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 43 | 23 | 21 |
Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 7,019 | 8,471 | 6,342 |
Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 3,952 | 4,436 | 3,957 |
Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 325 | 496 | 328 |
Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,139 | 2,951 | 1,564 |
Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 251 | 211 | 181 |
Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 31 | 48 | 16 |
Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 14 | 9 | 8 |
Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 33 | 34 | 13 |
Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 274 | 286 | 275 |
Elim- inations | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (323) | (474) | (288) |
Other revenues | | (3) | (3) | (3) |
Total revenues | | (326) | (477) | (291) |
Elim- inations | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (74) | (105) | (64) |
Elim- inations | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Off-system sales and capacity releases | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (73) | (104) | (62) |
Elim- inations | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (1) | (1) | (2) |
Elim- inations | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (249) | (369) | (224) |
Elim- inations | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (143) | (264) | (126) |
Elim- inations | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | (106) | (105) | (98) |
Elim- inations | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Elim- inations | AmeriGas Propane | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues | | 0 | 0 | 0 |
Elim- inations | UGI International | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues | | 0 | 0 | 0 |
Elim- inations | Midstream & Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues | | 251 | 369 | 224 |
Elim- inations | Utilities | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues | | 74 | 105 | 64 |
Operating Segments | AmeriGas Propane | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,496 | 2,864 | 2,548 |
Other revenues | | 85 | 79 | 66 |
Total revenues | | 2,581 | 2,943 | 2,614 |
Operating Segments | AmeriGas Propane | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,496 | 2,864 | 2,548 |
Operating Segments | AmeriGas Propane | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,184 | 2,439 | 2,203 |
Operating Segments | AmeriGas Propane | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 118 | 218 | 139 |
Operating Segments | AmeriGas Propane | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 194 | 207 | 206 |
Operating Segments | UGI International | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,927 | 3,652 | 2,617 |
Other revenues | | 38 | 34 | 34 |
Total revenues | | 2,965 | 3,686 | 2,651 |
Operating Segments | UGI International | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | UGI International | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 2,927 | 3,652 | 2,617 |
Operating Segments | UGI International | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,768 | 1,997 | 1,754 |
Operating Segments | UGI International | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 207 | 278 | 189 |
Operating Segments | UGI International | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 872 | 1,298 | 605 |
Operating Segments | UGI International | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | UGI International | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 80 | 79 | 69 |
Operating Segments | Midstream & Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,845 | 2,324 | 1,401 |
Other revenues | | 2 | 2 | 5 |
Total revenues | | 1,847 | 2,326 | 1,406 |
Operating Segments | Midstream & Marketing | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | Midstream & Marketing | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,845 | 2,324 | 1,401 |
Operating Segments | Midstream & Marketing | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,410 | 1,917 | 1,085 |
Operating Segments | Midstream & Marketing | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 251 | 211 | 181 |
Operating Segments | Midstream & Marketing | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 137 | 153 | 114 |
Operating Segments | Midstream & Marketing | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 14 | 9 | 8 |
Operating Segments | Midstream & Marketing | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 33 | 34 | 13 |
Operating Segments | Midstream & Marketing | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,816 | 1,615 | 1,070 |
Other revenues | | 38 | 5 | 9 |
Total revenues | | 1,854 | 1,620 | 1,079 |
Operating Segments | Utilities | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,816 | 1,615 | 1,070 |
Operating Segments | Utilities | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 1,020 | 875 | 568 |
Operating Segments | Utilities | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 413 | 365 | 218 |
Operating Segments | Utilities | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 177 | 171 | 148 |
Operating Segments | Utilities | Off-system sales and capacity releases | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 162 | 180 | 113 |
Operating Segments | Utilities | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 44 | 24 | 23 |
Operating Segments | Utilities | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Operating Segments | Utilities | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Other revenues | | 7 | 8 | (12) |
Total revenues | | 7 | 8 | (12) |
Corporate & Other | Total Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Residential | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Commercial & Industrial | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Large delivery service | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Off-system sales and capacity releases | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Total Non-Utility | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Retail | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Wholesale | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Energy Marketing | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Pipeline | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Peaking | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Electricity Generation | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 |
Corporate & Other | Other | | | | |
Disaggregation of Revenue [Line Items] | | | | |
Total revenues from contracts with customers | | $ 0 | $ 0 | $ 0 |