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Business Transformation Initiatives (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
AmeriGas and UGI International |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Recognized expenses |  | $ 17 |  | $ 49
Corporate Services |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Recognized expenses | $ 2 | $ 4 | $ 6 | $ 8

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