Subsequent Events	12 Months Ended
Sep. 30, 2011
Subsequent Events [Abstract]
Subsequent Events	Note 22 — Subsequent Events *European LPG Acquisitions. On October 14, 2011, UGI, through subsidiaries, acquired Shell’s LPG distribution businesses in the United Kingdom, Belgium, the Netherlands, Luxembourg, Denmark, Finland, Norway and Sweden for approximately €130 in cash, subject to working capital adjustments. The acquired businesses delivered a combined approximately 300 million gallons of LPG in 2010. The purchase price for these businesses was funded principally from existing cash at UGI and the return of cash capital contributions by Midstream & Marketing to UGI from borrowings under the Energy Services Credit Agreement. These cash capital contributions had previously been made by UGI to fund major Midstream & Marketing capital projects. Proposed AmeriGas Acquisition of the Propane Operations of Energy Transfer Partners*. On October 17, 2011, AmeriGas Partners announced that it had reached a definitive agreement to acquire the propane operations of Energy Transfer Partners, L.P. (“Energy Transfer”) for total consideration of approximately $2,900, including $1,500 in cash, AmeriGas Partners Common Units valued at approximately $1,300 at the time of the execution of the agreement, and the assumption of $71 in debt (the “Acquisition”). Energy Transfer conducts its propane operations in 41 states through its subsidiaries Heritage Operating, L.P. and Titan Energy Partners, L.P. (collectively, “Heritage Propane”). According to LP-Gas Magazine rankings, Heritage Propane is the third largest retail propane distributor in the United States, delivering over 500 million gallons to more than one million retail propane customers. The acquisition of Heritage Propane is subject to customary closing conditions, including approval under the Hart-Scott-Rodino Act. AmeriGas Partners’ obligation to complete the Acquisition is also conditioned on it obtaining debt financing on certain agreed upon terms. In addition to new debt financing, the Partnership expects to increase the size of the AmeriGas 2011 Credit Agreement to at least $500 upon closing of the transaction. The agreement contains termination rights for both parties. Under certain conditions, termination by AmeriGas Partners could result in the payment of a termination fee of up to $125. AmeriGas Partners expects to complete the Acquisition by March 31, 2012.

Note 22 — Subsequent Events

European LPG Acquisitions. On October 14, 2011, UGI, through subsidiaries, acquired Shell’s LPG distribution businesses in the United Kingdom, Belgium, the Netherlands, Luxembourg, Denmark, Finland, Norway and Sweden for approximately €130 in cash, subject to working capital adjustments. The acquired businesses delivered a combined approximately 300 million gallons of LPG in 2010. The purchase price for these businesses was funded principally from existing cash at UGI and the return of cash capital contributions by Midstream & Marketing to UGI from borrowings under the Energy Services Credit Agreement. These cash capital contributions had previously been made by UGI to fund major Midstream & Marketing capital projects.

Proposed AmeriGas Acquisition of the Propane Operations of Energy Transfer Partners. On October 17, 2011, AmeriGas Partners announced that it had reached a definitive agreement to acquire the propane operations of Energy Transfer Partners, L.P. (“Energy Transfer”) for total consideration of approximately $2,900, including $1,500 in cash, AmeriGas Partners Common Units valued at approximately $1,300 at the time of the execution of the agreement, and the assumption of $71 in debt (the “Acquisition”). Energy Transfer conducts its propane operations in 41 states through its subsidiaries Heritage Operating, L.P. and Titan Energy Partners, L.P. (collectively, “Heritage Propane”). According to LP-Gas Magazine rankings, Heritage Propane is the third largest retail propane distributor in the United States, delivering over 500 million gallons to more than one million retail propane customers. The acquisition of Heritage Propane is subject to customary closing conditions, including approval under the Hart-Scott-Rodino Act. AmeriGas Partners’ obligation to complete the Acquisition is also conditioned on it obtaining debt financing on certain agreed upon terms. In addition to new debt financing, the Partnership expects to increase the size of the AmeriGas 2011 Credit Agreement to at least $500 upon closing of the transaction. The agreement contains termination rights for both parties. Under certain conditions, termination by AmeriGas Partners could result in the payment of a termination fee of up to $125. AmeriGas Partners expects to complete the Acquisition by March 31, 2012.