Revenue from Contracts with Customers - Disaggregated Revenues by Reportable Segment (Details) - USD ($) $ in Millions | | 3 Months Ended | 9 Months Ended |
Nov. 01, 2022 | Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022 |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | $ 1,620 | $ 2,004 | $ 7,382 | $ 8,082 |
Other revenues | | 39 | 29 | 142 | 90 |
Total revenues | | 1,659 | 2,033 | 7,524 | 8,172 |
Weather Normalization Adjustment Rider | PAPUC | Gas Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Rate period | 5 years | | | | |
Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 265 | 249 | 1,537 | 1,309 |
Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 151 | 140 | 911 | 774 |
Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 60 | 57 | 369 | 318 |
Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 39 | 38 | 139 | 135 |
Off-system sales and capacity releases | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 7 | 9 | 84 | 65 |
Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 8 | 5 | 34 | 17 |
Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 1,355 | 1,755 | 5,845 | 6,773 |
Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 799 | 880 | 3,243 | 3,684 |
Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 76 | 107 | 287 | 401 |
Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 336 | 631 | 1,854 | 2,254 |
Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 58 | 53 | 189 | 149 |
Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 1 | 9 | 28 | 38 |
Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 3 | 2 | 10 | 6 |
Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 17 | 1 | 27 | 20 |
Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 65 | 72 | 207 | 221 |
Eliminations | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (26) | (99) | (301) | (394) |
Other revenues | | 1 | 0 | (1) | (2) |
Total revenues | | (25) | (99) | (302) | (396) |
Eliminations | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (7) | (24) | (69) | (87) |
Eliminations | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Off-system sales and capacity releases | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (7) | (24) | (68) | (86) |
Eliminations | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | (1) | (1) |
Eliminations | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (19) | (75) | (232) | (307) |
Eliminations | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (14) | (70) | (130) | (206) |
Eliminations | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | (5) | (5) | (102) | (101) |
Eliminations | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Eliminations | AmeriGas Propane | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues | | 0 | 0 | 0 | 0 |
Eliminations | UGI International | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues | | 0 | 0 | 0 | 0 |
Eliminations | Midstream & Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues | | 19 | 75 | 232 | 307 |
Eliminations | Utilities | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues | | 8 | 24 | 69 | 87 |
Operating Segments | AmeriGas Propane | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 494 | 577 | 2,083 | 2,367 |
Other revenues | | 20 | 20 | 64 | 56 |
Total revenues | | 514 | 597 | 2,147 | 2,423 |
Operating Segments | AmeriGas Propane | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 494 | 577 | 2,083 | 2,367 |
Operating Segments | AmeriGas Propane | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 423 | 478 | 1,812 | 2,032 |
Operating Segments | AmeriGas Propane | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 24 | 48 | 120 | 172 |
Operating Segments | AmeriGas Propane | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | AmeriGas Propane | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 47 | 51 | 151 | 163 |
Operating Segments | UGI International | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 602 | 728 | 2,409 | 2,984 |
Other revenues | | 9 | 10 | 27 | 27 |
Total revenues | | 611 | 738 | 2,436 | 3,011 |
Operating Segments | UGI International | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | UGI International | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 602 | 728 | 2,409 | 2,984 |
Operating Segments | UGI International | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 376 | 402 | 1,431 | 1,652 |
Operating Segments | UGI International | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 52 | 59 | 167 | 229 |
Operating Segments | UGI International | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 156 | 246 | 755 | 1,045 |
Operating Segments | UGI International | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | UGI International | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 18 | 21 | 56 | 58 |
Operating Segments | Midstream & Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 278 | 525 | 1,585 | 1,729 |
Other revenues | | 1 | 0 | 1 | 2 |
Total revenues | | 279 | 525 | 1,586 | 1,731 |
Operating Segments | Midstream & Marketing | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Operating Segments | Midstream & Marketing | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 278 | 525 | 1,585 | 1,729 |
Operating Segments | Midstream & Marketing | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Midstream & Marketing | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 194 | 455 | 1,229 | 1,415 |
Operating Segments | Midstream & Marketing | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 58 | 53 | 189 | 149 |
Operating Segments | Midstream & Marketing | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 6 | 14 | 130 | 139 |
Operating Segments | Midstream & Marketing | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 3 | 2 | 10 | 6 |
Operating Segments | Midstream & Marketing | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 17 | 1 | 27 | 20 |
Operating Segments | Midstream & Marketing | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 272 | 273 | 1,606 | 1,396 |
Other revenues | | 6 | 1 | 38 | 4 |
Total revenues | | 278 | 274 | 1,644 | 1,400 |
Operating Segments | Utilities | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 272 | 273 | 1,606 | 1,396 |
Operating Segments | Utilities | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 151 | 140 | 911 | 774 |
Operating Segments | Utilities | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 60 | 57 | 369 | 318 |
Operating Segments | Utilities | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 39 | 38 | 139 | 135 |
Operating Segments | Utilities | Off-system sales and capacity releases | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 14 | 33 | 152 | 151 |
Operating Segments | Utilities | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 8 | 5 | 35 | 18 |
Operating Segments | Utilities | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Operating Segments | Utilities | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Other revenues | | 2 | (2) | 13 | 3 |
Total revenues | | 2 | (2) | 13 | 3 |
Corporate & Other | Total Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Residential | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Commercial & Industrial | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Large delivery service | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 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 | 0 |
Corporate & Other | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Total Non-Utility | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Retail | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Wholesale | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Energy Marketing | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Pipeline | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Peaking | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Electricity Generation | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | 0 | 0 | 0 | 0 |
Corporate & Other | Other | | | | | |
Disaggregation of Revenue [Line Items] | | | | | |
Total revenues from contracts with customers | | $ 0 | $ 0 | $ 0 | $ 0 |