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Acquisitions - Narrative (Details) - USD ($)
$ in Millions
9 Months Ended
Jan. 27, 2022
Sep. 01, 2021
Jun. 30, 2022
UGI Corporation Senior Credit Facility      
Business Acquisition [Line Items]      
Issuance of debt   $ 215  
Stonehenge      
Business Acquisition [Line Items]      
Enterprise value $ 190    
Mountaineer      
Business Acquisition [Line Items]      
Enterprise value   540  
Assumption of debt   $ 140  
Goodwill decrease     $ 5