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v3.23.3

Equity-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions |  | 1 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 29, 2021 | Jan. 31, 2023 | Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Pre-tax equity-based compensation expense |  |  | $ 17 | $ 15 | $ 21
After tax equity-based compensation expense |  |  | $ 13 | $ 11 | $ 15
Weighted-average fair value of stock option granted under stock plans (in dollars per share) |  |  | $ 9.31 | $ 8.47 | $ 6.05
Options outstanding (in shares) |  |  | 8,358,125 |  |
Options exercisable (in shares) |  |  | 7,122,824 |  |
Weighted average exercise price (in dollars per share) |  |  | $ 42.79 |  |
UGI Stock Option Awards |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Unrecognized compensation cost associated with unvested unit awards |  |  | $ 5 |  |
Weighted-average period of recognition for unvested unit awards |  |  | 1 year 10 months 24 days |  |
UGI Performance Units |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Weighted-average fair value of stock option granted under stock plans (in dollars per share) |  |  | $ 44.62 | $ 51.24 | $ 41.41
UGI Performance Units | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Percentage of target award to be granted (as a percentage) |  |  | 0.00% |  |
UGI Performance Units | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Percentage of target award to be granted (as a percentage) |  |  | 200.00% |  |
UGI EPS Performance Unit |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Unrecognized compensation cost associated with unvested unit awards |  |  | $ 25 |  |
Weighted-average period of recognition for unvested unit awards |  |  | 2 years |  |
UGI Unit awards outstanding (in shares) |  |  | 1,502,253 |  |
Weighted average grant date fair value, outstanding (in dollars per share) |  |  | $ 43.09 |  |
UGI EPS Performance Unit | Minimum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Percentage of target award to be granted (as a percentage) |  | 0.00% |  |  |
UGI EPS Performance Unit | Maximum |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Percentage of target award to be granted (as a percentage) |  | 200.00% |  |  |
Common Stock | 2021 IAP |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award |  |  |  |  |
Common Stock awards granted (up to) (in shares) | 20,500,000 |  |  |  |
Expiration period | 10 years |  |  |  |
Number of common unit awards available for future grant (in shares) |  |  | 16,014,039 |  |

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